🐛(backend) ensure SIP dispatch rule instead of creating it

The roomkit can now create a SIP dispatch rule before the LiveKit
webhook that used to trigger this creation is fired. In practice,
when the roomkit connects to the room, it also triggers the
webhook, leading to a duplicated dispatch rule.

Switch from "create dispatch rule" to "ensure dispatch rule exists"
semantics, so subsequent calls are idempotent and no duplicate rule
is created.

CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to
 - ✨(frontend) add configurable documentation menu item
 - ✨(frontend) allow promoting authenticated participants
 - ✨(frontend) introduce an "unauthenticated" participant badge
+- ✨(backend) add roomkit viewset to start a room without WebRTC join
 
 ### Changed
 
@@ -26,6 +27,7 @@ and this project adheres to
 - 📝(legal) update terms of service
 - 💄(frontend) render Avatar initials in uppercase
 - 💄(frontend) improve participant name rendering in the list
+- 🚚(backend) rename TelephonyService to SIPManagement
 
 ## Fixed
 

Makefile

@@ -389,6 +389,12 @@ build-k8s-cluster: \
     ./bin/start-kind.sh
 .PHONY: build-k8s-cluster
 
+build-k8s-cluster-orbstack: ## setup the kubernetes environment on OrbStack's built-in cluster (macOS)
+build-k8s-cluster-orbstack: \
+    env.d/development/kube-secret
+	./bin/start-orbstack.sh
+.PHONY: build-k8s-cluster-orbstack
+
 start-tilt-keycloak: ## start the kubernetes cluster using kind, without Pro Connect for authentication, use keycloak
 	DEV_ENV=dev-keycloak tilt up --namespace=meet -f ./bin/Tiltfile
 .PHONY: build-k8s-cluster

bin/Tiltfile

@@ -1,5 +1,11 @@
 load('ext://uibutton', 'cmd_button', 'bool_input', 'location')
 load('ext://namespace', 'namespace_create', 'namespace_inject')
+
+# OrbStack's built-in cluster (macOS) is a supported alternative to kind.
+# Recent Tilt versions (>= 0.33) detect it as a local dev cluster; this is
+# a no-op for kind and a safety net for older Tilt versions.
+allow_k8s_contexts('orbstack')
+
 namespace_create('meet')
 
 DEV_ENV = os.getenv('DEV_ENV', 'dev-keycloak')

bin/start-orbstack.sh

@@ -0,0 +1,182 @@
+#!/usr/bin/env bash
+#
+# Bootstrap the local dev environment on OrbStack's built-in Kubernetes
+# cluster (macOS) instead of kind.
+#
+# This replicates what bin/start-kind.sh (numerique-gouv/tools
+# kind/create_cluster.sh) provides, minus what OrbStack makes unnecessary:
+#   - no kind cluster: OrbStack ships a lightweight single-node cluster
+#   - no local registry (kind-registry): OrbStack's cluster shares the
+#     Docker image store, so images built by Tilt are directly visible
+#     to pods. Tilt detects the "orbstack" context as a local cluster
+#     and skips pushing images entirely.
+#
+# Requirements: OrbStack (with Kubernetes enabled), kubectl, mkcert, curl.
+set -o errexit
+
+APPLICATION=${1:-meet}
+CONTEXT="orbstack"
+
+echo "0. Check OrbStack Kubernetes is available"
+if ! command -v mkcert >/dev/null 2>&1; then
+  echo "❌ mkcert is not installed. Install it first: brew install mkcert"
+  exit 1
+fi
+if ! kubectl config get-contexts -o name | grep -qx "${CONTEXT}"; then
+  echo "Context '${CONTEXT}' not found. Trying to start OrbStack Kubernetes..."
+  if command -v orb >/dev/null 2>&1; then
+    orb start k8s
+  else
+    echo "❌ Enable Kubernetes in OrbStack (Settings > Kubernetes) and retry."
+    exit 1
+  fi
+fi
+kubectl config use-context "${CONTEXT}"
+
+echo "0b. Check ports 80/443 are free on localhost"
+# OrbStack forwards LoadBalancer service ports to 127.0.0.1. If the kind
+# cluster is still running, its docker proxy already holds 80/443.
+# Skip the check if ingress-nginx is already installed here: in that case
+# the listener on 80/443 is our own LoadBalancer.
+if ! kubectl -n ingress-nginx get deployment ingress-nginx-controller >/dev/null 2>&1; then
+  for port in 80 443; do
+    if lsof -nP -iTCP:"${port}" -sTCP:LISTEN >/dev/null 2>&1; then
+      echo "❌ Port ${port} is already in use on the host."
+      echo "   If the kind cluster is running, delete it first:"
+      echo "     kind delete cluster --name suite"
+      exit 1
+    fi
+  done
+fi
+
+echo "1. Create ca"
+CURRENT_DIR=$(pwd)
+mkcert -install
+cd /tmp
+mkcert "127.0.0.1.nip.io" "*.127.0.0.1.nip.io"
+cd "${CURRENT_DIR}"
+
+echo "2. Install ingress-nginx (cloud provider: LoadBalancer service)"
+# OrbStack exposes LoadBalancer services on 127.0.0.1, so the cloud
+# manifest replaces kind's hostPort-based deploy. Every sub-step below is
+# guarded individually so the script is safe to re-run after a partial
+# failure (unlike the upstream kind script, which guards the whole block
+# on namespace existence).
+
+# Make sure no stale registry configmap tells Tilt to push to localhost:5001
+# (there is no registry on OrbStack).
+kubectl -n kube-public delete configmap local-registry-hosting --ignore-not-found
+
+if ! kubectl -n ingress-nginx get deployment ingress-nginx-controller >/dev/null 2>&1; then
+  kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/cloud/deploy.yaml
+fi
+if ! kubectl -n ingress-nginx get deployment nginx-errors >/dev/null 2>&1; then
+  kubectl apply -n ingress-nginx -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/refs/heads/main/docs/examples/customization/custom-errors/custom-default-backend.yaml
+fi
+kubectl -n ingress-nginx create secret tls mkcert --key /tmp/127.0.0.1.nip.io+1-key.pem --cert /tmp/127.0.0.1.nip.io+1.pem || echo ok
+
+# The meet charts render Ingresses without ingressClassName. The kind
+# provider manifest handles this via --watch-ingress-without-class=true;
+# the cloud manifest does not, so add it here (otherwise: 404 everywhere).
+if ! kubectl -n ingress-nginx get deployment ingress-nginx-controller -o jsonpath='{.spec.template.spec.containers[0].args}' | grep -q 'watch-ingress-without-class'; then
+  kubectl -n ingress-nginx patch deployments.apps ingress-nginx-controller --type 'json' -p '[{"op": "add", "path": "/spec/template/spec/containers/0/args/-", "value":"--watch-ingress-without-class=true"},{"op": "add", "path": "/spec/template/spec/containers/0/args/-", "value":"--default-ssl-certificate=ingress-nginx/mkcert"},{"op": "add", "path": "/spec/template/spec/containers/0/args/-", "value":"--default-backend-service=ingress-nginx/nginx-errors"}
+]'
+fi
+if ! kubectl -n ingress-nginx get deployment nginx-errors -o jsonpath='{.spec.template.spec.containers[0].image}' | grep -q 'error-pages'; then
+  kubectl -n ingress-nginx patch deployment nginx-errors --type=json -p='[
+  {"op": "replace", "path": "/spec/template/spec/containers/0/image", "value": "ghcr.io/tarampampam/error-pages:3.3.0"},
+  {"op": "add", "path": "/spec/template/spec/containers/0/env", "value": [{"name": "TEMPLATE_NAME", "value": "ghost"}, {"name": "SHOW_DETAILS", "value": "false"}, {"name": "SEND_SAME_HTTP_CODE", "value": "true"}]}
+]'
+fi
+cat <<EOF | kubectl apply -n ingress-nginx -f -
+  apiVersion: v1
+  data:
+    allow-snippet-annotations: "true"
+    annotations-risk-level: Critical
+    custom-http-errors: 500,501,502,503,504
+  kind: ConfigMap
+  metadata:
+    name: ingress-nginx-controller
+    namespace: ingress-nginx
+EOF
+
+echo "2b. Wait for the ingress controller to be ready"
+kubectl -n ingress-nginx rollout status deployment/ingress-nginx-controller --timeout=180s
+
+echo "3. Patch CoreDNS so in-cluster pods resolve *.127.0.0.1.nip.io to the ingress"
+# nip.io resolves to 127.0.0.1, which inside a pod is the pod itself.
+# Rewrite these names to the ingress-nginx service, like the kind setup does.
+# Unlike kind, we amend OrbStack's existing Corefile instead of replacing it.
+if ! kubectl -n kube-system get configmap coredns -o jsonpath='{.data.Corefile}' | grep -q '127\.0\.0\.1\.nip\.io'; then
+  kubectl -n kube-system get configmap coredns -o jsonpath='{.data.Corefile}' \
+    | awk '/forward \./ && !done { print "    rewrite stop {"; print "      name regex (.*).127.0.0.1.nip.io ingress-nginx-controller.ingress-nginx.svc.cluster.local answer auto"; print "    }"; done=1 } { print }' \
+    >/tmp/Corefile.orbstack
+  kubectl -n kube-system create configmap coredns --from-file=Corefile=/tmp/Corefile.orbstack --dry-run=client -o yaml | kubectl apply -f -
+  kubectl -n kube-system rollout restart deployments/coredns
+fi
+
+if ! kubectl get ns "${APPLICATION}" >/dev/null 2>&1; then
+  echo "4. Setup namespace"
+  kubectl create ns "${APPLICATION}"
+fi
+kubectl config set-context --current --namespace="${APPLICATION}"
+kubectl -n "${APPLICATION}" create secret generic mkcert --from-file=rootCA.pem="$(mkcert -CAROOT)/rootCA.pem" || echo ok
+
+if ! kubectl get configmap certifi -n "${APPLICATION}" >/dev/null 2>&1; then
+  echo "5. Inject our custom CA in a configmap for certifi"
+  curl https://raw.githubusercontent.com/certifi/python-certifi/refs/heads/master/certifi/cacert.pem -o /tmp/cacert.pem
+  cat "$(mkcert -CAROOT)/rootCA.pem" >>/tmp/cacert.pem
+  kubectl -n "${APPLICATION}" create configmap certifi --from-file=cacert.pem=/tmp/cacert.pem
+  kubectl -n "${APPLICATION}" create secret generic certifi --from-file=/tmp/cacert.pem || echo ok
+fi
+
+echo "5b. Smoke test: the ingress chain answers on https://127.0.0.1"
+# Before Tilt deploys the app this returns the styled 404 from the default
+# backend — that still proves LB -> controller works. 000 means the
+# LoadBalancer is not bound to localhost.
+HTTP_CODE=$(curl -sk -o /dev/null -w '%{http_code}' --max-time 10 https://127.0.0.1/ || true)
+if [ "${HTTP_CODE}" = "000" ]; then
+  echo "⚠️  Nothing answered on https://127.0.0.1 — check the LoadBalancer:"
+  echo "    kubectl -n ingress-nginx get svc ingress-nginx-controller"
+else
+  echo "✅ Ingress reachable (HTTP ${HTTP_CODE})"
+fi
+
+echo "6. Check pod readiness across all namespaces..."
+
+sleep_interval=10
+
+echo "Initial wait time: $((sleep_interval * 2)) seconds…"
+sleep $((sleep_interval * 2))
+
+check_pods_ready() {
+    local max_attempts=60  # Maximum number of attempts (10 minutes with 10s intervals)
+    local attempt=1
+
+    while [ $attempt -le $max_attempts ]; do
+        echo "Attempt $attempt/$max_attempts - Checking pod status..."
+
+        not_ready_count=$( kubectl get po -A --no-headers | grep -v -E "Running|Completed"| wc -l | tr -d ' ')
+
+        if [ "$not_ready_count" -eq 0 ]; then
+            echo "✅ All pods are ready!"
+            return 0
+        else
+            echo "⏳ $not_ready_count pod(s) still not ready. Waiting $sleep_interval seconds…"
+            sleep $sleep_interval
+            ((attempt++))
+        fi
+    done
+
+    echo "❌ Timeout: Some pods are still not ready after 10 minutes"
+    echo "Final pod status:"
+    kubectl get po -A
+    return 1
+}
+
+if check_pods_ready; then
+    echo "🎉 Cluster is fully ready!"
+else
+    echo "⚠️  Some pods may need manual intervention"
+    exit 1
+fi

docs/developping_locally.md

@@ -143,3 +143,24 @@ $ make start-tilt-keycloak
 ```
 
 Monitor Tilt’s progress at [http://localhost:10350/](http://localhost:10350/). After Tilt actions finish, you can access the app at [https://meet.127.0.0.1.nip.io/](https://meet.127.0.0.1.nip.io/).
+
+### Alternative: OrbStack's built-in Kubernetes (macOS)
+
+If you use [OrbStack](https://orbstack.dev/) on macOS, you can run the stack on its built-in Kubernetes cluster instead of kind. It uses noticeably less RAM (no nested kubeadm node container) and no local registry is needed: OrbStack's cluster shares the Docker image store, so Tilt uses images directly without pushing.
+
+Enable Kubernetes in OrbStack (Settings > Kubernetes), then:
+
+```shellscript
+$ make build-k8s-cluster-orbstack
+```
+
+This installs ingress-nginx (exposed by OrbStack on `127.0.0.1:80/443`), the mkcert TLS certificates, and the CoreDNS rewrite for `*.127.0.0.1.nip.io`, then you start Tilt as usual:
+
+```shellscript
+$ make start-tilt-keycloak
+```
+
+Notes:
+- Ports 80/443 must be free: delete the kind cluster first if you used it (`kind delete cluster --name suite`).
+- If you "Reset Kubernetes" in OrbStack, re-run `make build-k8s-cluster-orbstack`.
+- kind remains the reference setup (matches CI and lets you pin the Kubernetes version).

src/backend/core/analytics/events.py

@@ -8,3 +8,6 @@ class AnalyticsEvent(StrEnum):
 
     # Rooms
     ROOM_CREATED = "room_created"
+
+    # Roomkit (meeting-room SIP devices)
+    ROOMKIT_JOINED = "roomkit_joined"

src/backend/core/api/feature_flag.py

@@ -16,6 +16,7 @@ class FeatureFlag:
         "file_upload": "FILE_UPLOAD_ENABLED",
         "addons": "ADDONS_ENABLED",
         "application": "APPLICATION_ENABLED",
+        "roomkit": "ROOMKIT_ENABLED",
     }
 
     @classmethod

src/backend/core/api/throttling.py

@@ -73,3 +73,15 @@ class CreationCallbackAnonRateThrottle(MonitoredAnonRateThrottle):
     """Throttle Anonymous user requesting room generation callback"""
 
     scope = "creation_callback"
+
+
+class RoomKitJoinRateThrottle(MonitoredUserRateThrottle):
+    """Throttle the LiveKit SIP module requesting roomkit joins.
+
+    The roomkit endpoints are authenticated as a machine user, so all requests
+    share a single throttle bucket. This is not a security measure against
+    brute-force attacks but a guard against accidental hammering from a buggy
+    SIP module.
+    """
+
+    scope = "roomkit_join"

src/backend/core/models.py

@@ -429,7 +429,14 @@ class Room(Resource):
 
     def save(self, *args, **kwargs):
         """Generate a unique n-digit pin code for new rooms."""
-        if settings.ROOM_TELEPHONY_ENABLED and not self.pk and not self.pin_code:
+
+        # Roomkit devices also join by PIN, so a PIN is needed as soon as
+        # either integration is enabled.
+        if (
+            (settings.ROOM_TELEPHONY_ENABLED or settings.ROOMKIT_ENABLED)
+            and not self.pk
+            and not self.pin_code
+        ):
             self.pin_code = self.generate_unique_pin_code(
                 length=settings.ROOM_TELEPHONY_PIN_LENGTH
             )

src/backend/core/roomkit/__init__.py

@@ -0,0 +1 @@
+"""Meet core roomkit API endpoints for meeting-room (SIP) device integration."""

src/backend/core/roomkit/authentication.py

@@ -0,0 +1,65 @@
+"""Authentication for the roomkit API of the Meet core app."""
+
+import logging
+import secrets
+
+from django.conf import settings
+
+from rest_framework.authentication import BaseAuthentication
+from rest_framework.exceptions import AuthenticationFailed
+
+from core.recording.event.authentication import MachineUser
+
+logger = logging.getLogger(__name__)
+
+
+class ServerToServerAuthentication(BaseAuthentication):
+    """Custom authentication class for roomkit server-to-server requests.
+
+    Validates the Authorization header against the roomkit server-to-server
+    token. A valid PIN code is intentionally not enough to authenticate: the
+    endpoints are restricted to the LiveKit SIP module's credentials.
+    """
+
+    AUTH_HEADER = "Authorization"
+    TOKEN_TYPE = "Bearer"  # noqa S105
+
+    def authenticate(self, request):
+        """Validate the Bearer token from the Authorization header.
+
+        Returns a (MachineUser, token) pair on success, and raises
+        AuthenticationFailed if the header is missing, malformed, or contains
+        an invalid token.
+        """
+        required_token = settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN
+        if not required_token:
+            raise AuthenticationFailed("Server-to-server token is not configured.")
+
+        auth_header = request.headers.get(self.AUTH_HEADER)
+        if not auth_header:
+            logger.warning(
+                "Roomkit authentication failed: missing Authorization header (ip: %s)",
+                request.META.get("REMOTE_ADDR"),
+            )
+            raise AuthenticationFailed("Authorization header is missing.")
+
+        # Validate token format and existence
+        auth_parts = auth_header.split(" ")
+        if len(auth_parts) != 2 or auth_parts[0] != self.TOKEN_TYPE:
+            raise AuthenticationFailed("Invalid authorization header.")
+
+        token = auth_parts[1]
+
+        # Use constant-time comparison to prevent timing attacks
+        if not secrets.compare_digest(token.encode(), required_token.encode()):
+            logger.warning(
+                "Roomkit authentication failed: invalid token (ip: %s)",
+                request.META.get("REMOTE_ADDR"),
+            )
+            raise AuthenticationFailed("Invalid server-to-server token.")
+
+        return MachineUser(username="roomkit"), token
+
+    def authenticate_header(self, request):
+        """Return the WWW-Authenticate header value."""
+        return f"{self.TOKEN_TYPE} realm='Roomkit server to server'"

src/backend/core/roomkit/serializers.py

@@ -0,0 +1,21 @@
+"""Serializers for the roomkit API of the Meet core app."""
+
+# pylint: disable=abstract-method
+
+from django.conf import settings
+
+from rest_framework import serializers
+
+from core.api.serializers import BaseValidationOnlySerializer
+
+
+class RoomKitJoinSerializer(BaseValidationOnlySerializer):
+    """Validate roomkit join requests from the LiveKit SIP module."""
+
+    pin_code = serializers.CharField(required=True)
+
+    def validate_pin_code(self, value):
+        """Ensure the PIN code matches the configured length."""
+        if len(value) != settings.ROOM_TELEPHONY_PIN_LENGTH:
+            raise serializers.ValidationError("PIN code length is invalid.")
+        return value

src/backend/core/roomkit/viewsets.py

@@ -0,0 +1,89 @@
+"""Roomkit API endpoints for meeting-room (SIP) device integration."""
+
+from logging import getLogger
+
+from rest_framework import decorators, viewsets
+from rest_framework import (
+    exceptions as drf_exceptions,
+)
+from rest_framework import (
+    response as drf_response,
+)
+from rest_framework import (
+    status as drf_status,
+)
+
+from core import analytics, models
+from core.api import permissions, throttling
+from core.api.feature_flag import FeatureFlag
+from core.services.sip_management import SIPException, SIPManagement
+
+from . import authentication, serializers
+
+logger = getLogger(__name__)
+
+
+class RoomKitViewSet(viewsets.ViewSet):
+    """Server-to-server API endpoints for the roomkit integration.
+
+    Groups all interactions between roomkit (SIP) devices and the backend,
+    brokered by the LiveKit SIP module. All endpoints are authenticated
+    with the roomkit server-to-server tokens.
+    """
+
+    authentication_classes = [authentication.ServerToServerAuthentication]
+    permission_classes = [permissions.IsAuthenticated]
+
+    @decorators.action(
+        detail=False,
+        methods=["post"],
+        url_path="join",
+        throttle_classes=[throttling.RoomKitJoinRateThrottle],
+    )
+    @FeatureFlag.require("roomkit")
+    def join(self, request):
+        """Prepare a room for a meeting-room (SIP) device joining by PIN code.
+
+        Called by the LiveKit SIP module when a meeting-room device dials in
+        with a PIN code before any WebRTC participant has joined. Resolves the
+        room by PIN and creates its SIP dispatch rule, so the device can enter
+        without waiting for a WebRTC user.
+
+        The webhook-based creation path is kept: both converge on the same rule
+        through the shared SIPManagement.
+        """
+
+        serializer = serializers.RoomKitJoinSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+
+        try:
+            room = models.Room.objects.get(
+                pin_code=serializer.validated_data["pin_code"]
+            )
+        except models.Room.DoesNotExist as e:
+            raise drf_exceptions.NotFound("No room found for this PIN code.") from e
+
+        try:
+            created = SIPManagement().ensure_dispatch_rule(room)
+        except SIPException as e:
+            raise drf_exceptions.APIException("Could not create dispatch rule.") from e
+
+        analytics.capture(
+            request.user,
+            analytics.AnalyticsEvent.ROOMKIT_JOINED,
+            {
+                "room_id": str(room.pk),
+                "dispatch_rule_created": created,
+            },
+        )
+
+        logger.info(
+            "Roomkit join requested: room_id=%s, dispatch_rule_created=%s",
+            room.id,
+            created,
+        )
+
+        return drf_response.Response(
+            {"status": "success"},
+            status=drf_status.HTTP_200_OK,
+        )

src/backend/core/services/livekit_events.py

@@ -28,7 +28,7 @@ from .room_management import (
     RoomManagementException,
     RoomNotFoundException,
 )
-from .telephony import TelephonyException, TelephonyService
+from .sip_management import SIPException, SIPManagement
 
 logger = getLogger(__name__)
 
@@ -107,7 +107,7 @@ class LiveKitEventsService:
         )
         self.webhook_receiver = api.WebhookReceiver(token_verifier)
         self.lobby_service = LobbyService()
-        self.telephony_service = TelephonyService()
+        self.sip_management = SIPManagement()
         self.recording_events = RecordingEventsService()
 
         self._filter_regex = None
@@ -245,12 +245,12 @@ class LiveKitEventsService:
         except models.Room.DoesNotExist as err:
             raise ActionFailedError(f"Room with ID {room_id} does not exist") from err
 
-        if settings.ROOM_TELEPHONY_ENABLED:
+        if settings.ROOM_TELEPHONY_ENABLED or settings.ROOMKIT_ENABLED:
             try:
-                self.telephony_service.create_dispatch_rule(room)
+                self.sip_management.ensure_dispatch_rule(room)
-            except TelephonyException as e:
+            except SIPException as e:
                 raise ActionFailedError(
-                    f"Failed to create telephony dispatch rule for room {room_id}"
+                    f"Failed to create sip dispatch rule for room {room_id}"
                 ) from e
 
     def _handle_room_finished(self, data):
@@ -265,12 +265,12 @@ class LiveKitEventsService:
             )
             raise ActionFailedError("Failed to process room finished event") from e
 
-        if settings.ROOM_TELEPHONY_ENABLED:
+        if settings.ROOM_TELEPHONY_ENABLED or settings.ROOMKIT_ENABLED:
             try:
-                self.telephony_service.delete_dispatch_rule(room_id)
+                self.sip_management.delete_dispatch_rule(room_id)
-            except TelephonyException as e:
+            except SIPException as e:
                 raise ActionFailedError(
-                    f"Failed to delete telephony dispatch rule for room {room_id}"
+                    f"Failed to delete sip dispatch rule for room {room_id}"
                 ) from e
 
         try:

src/backend/core/services/sip_management.py

@@ -1,9 +1,9 @@
-"""Telephony service for managing SIP dispatch rules for room access."""
+"""SIP management service for managing SIP dispatch rules for room access."""
 
 from logging import getLogger
 
 from asgiref.sync import async_to_sync
-from livekit.api import TwirpError
+from livekit.api import TwirpError, TwirpErrorCode
 from livekit.protocol.sip import (
     CreateSIPDispatchRuleRequest,
     DeleteSIPDispatchRuleRequest,
@@ -17,12 +17,16 @@ from core import utils
 logger = getLogger(__name__)
 
 
-class TelephonyException(Exception):
+class SIPException(Exception):
-    """Exception raised when telephony operations fail."""
+    """Exception raised when SIP operations fail."""
 
 
-class TelephonyService:
+class DispatchRuleConflictError(SIPException):
-    """Service for managing participant access through the telephony system (SIP)."""
+    """Raised when a dispatch rule already exists for the same routing criteria."""
+
+
+class SIPManagement:
+    """Service for managing SIP access through the telephony or roomkit system (SIP)."""
 
     def _rule_name(self, room_id):
         """Generate the rule name for a room based on its ID."""
@@ -32,7 +36,7 @@ class TelephonyService:
     async def create_dispatch_rule(self, room):
         """Create a SIP inbound dispatch rule for direct room routing.
 
-        Configures telephony to route incoming SIP calls directly to the specified room
+        Configures livekit-sip to route incoming SIP calls directly to the specified room
         using the room's ID and PIN code for authentication.
         """
 
@@ -51,10 +55,12 @@ class TelephonyService:
         try:
             await lkapi.sip.create_sip_dispatch_rule(create=request)
         except TwirpError as e:
+            if e.code == TwirpErrorCode.ALREADY_EXISTS:
+                raise DispatchRuleConflictError("Dispatch rule already exists") from e
             logger.exception(
                 "Unexpected error creating dispatch rule for room %s", room.id
             )
-            raise TelephonyException("Could not create dispatch rule") from e
+            raise SIPException("Could not create dispatch rule") from e
 
         finally:
             await lkapi.aclose()
@@ -79,7 +85,7 @@ class TelephonyService:
             )
         except TwirpError as e:
             logger.exception("Failed to list dispatch rules for room %s", room_id)
-            raise TelephonyException("Could not list dispatch rules") from e
+            raise SIPException("Could not list dispatch rules") from e
         finally:
             await lkapi.aclose()
 
@@ -94,6 +100,28 @@ class TelephonyService:
             if existing_rule.name == rule_name
         ]
 
+    @async_to_sync
+    async def has_dispatch_rule(self, room_id):
+        """Check whether at least one dispatch rule exists for a specific room."""
+        return bool(await self._list_dispatch_rules_ids(room_id))
+
+    def ensure_dispatch_rule(self, room):
+        """Create the SIP dispatch rule for a room if it does not already exist.
+
+        Returns:
+            bool: True if a rule was created, False if it already existed.
+        """
+
+        if self.has_dispatch_rule(room.pk):
+            return False
+
+        try:
+            self.create_dispatch_rule(room)
+        except DispatchRuleConflictError:
+            return False
+
+        return True
+
     @async_to_sync
     async def delete_dispatch_rule(self, room_id):
         """Delete all SIP inbound dispatch rules associated with a specific room."""
@@ -118,7 +146,7 @@ class TelephonyService:
 
         except TwirpError as e:
             logger.exception("Failed to delete dispatch rules for room %s", room_id)
-            raise TelephonyException("Could not delete dispatch rules") from e
+            raise SIPException("Could not delete dispatch rules") from e
 
         finally:
             await lkapi.aclose()

src/backend/core/tests/roomkit/__init__.py

@@ -0,0 +1 @@
+"""Tests for the roomkit API of the Meet core app."""

src/backend/core/tests/roomkit/test_api_roomkit_join.py

@@ -0,0 +1,266 @@
+"""
+Test the roomkit join server-to-server API endpoint.
+"""
+
+# pylint: disable=redefined-outer-name,unused-argument
+
+from unittest import mock
+
+import pytest
+
+from ...factories import RoomFactory
+from ...services.sip_management import SIPException
+
+pytestmark = pytest.mark.django_db
+
+
+@pytest.fixture
+def mock_sip_management():
+    """Mock the SIPManagement used by the roomkit viewset."""
+    with mock.patch("core.roomkit.viewsets.SIPManagement") as mock_service_class:
+        yield mock_service_class.return_value
+
+
+def test_join_anonymous(settings, mock_sip_management, client):
+    """Requests without an Authorization header should be rejected."""
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+
+    response = client.post("/api/v1.0/roomkit/join/", {"pin_code": room.pin_code})
+
+    assert response.status_code == 401
+    assert response.json() == {"detail": "Authorization header is missing."}
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_malformed_authorization_header(settings, mock_sip_management, client):
+    """Requests with a malformed Authorization header should be rejected."""
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": room.pin_code},
+        HTTP_AUTHORIZATION="testAuthToken",
+    )
+
+    assert response.status_code == 401
+    assert response.json() == {"detail": "Invalid authorization header."}
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_wrong_bearer(settings, mock_sip_management, client):
+    """Requests with an incorrect bearer token should be rejected."""
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": room.pin_code},
+        HTTP_AUTHORIZATION="Bearer wrongAuthToken",
+    )
+
+    assert response.status_code == 401
+    assert response.json() == {"detail": "Invalid server-to-server token."}
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_token_not_configured(settings, mock_sip_management, client):
+    """Requests should be rejected when no server-to-server token is configured."""
+
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = None
+
+    room = RoomFactory(pin_code="1234567890")
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": room.pin_code},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 401
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_roomkit_disabled(settings, mock_sip_management, client):
+    """The endpoint should not be exposed when the roomkit integration is disabled."""
+
+    settings.ROOMKIT_ENABLED = False
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": room.pin_code},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 404
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_missing_pin(settings, mock_sip_management, client):
+    """Requests without a PIN code should be rejected."""
+
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {"pin_code": ["This field is required."]}
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_blank_pin(settings, mock_sip_management, client):
+    """Requests with a blank PIN code should be rejected."""
+
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": ""},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {"pin_code": ["This field may not be blank."]}
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_wrong_pin_length(settings, mock_sip_management, client):
+    """Requests with a PIN code of unexpected length should be rejected."""
+
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+    settings.ROOM_TELEPHONY_PIN_LENGTH = 10
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": "123"},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 400
+    assert response.json() == {"pin_code": ["PIN code length is invalid."]}
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_unknown_pin(settings, mock_sip_management, client):
+    """Requests with a PIN matching no room should return 404 and create no rule."""
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    RoomFactory(pin_code="1234567890")
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": "0987654321"},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 404
+    assert response.json() == {"detail": "No room found for this PIN code."}
+    mock_sip_management.ensure_dispatch_rule.assert_not_called()
+
+
+def test_join_success(settings, mock_sip_management, client):
+    """Requests with a valid PIN should create the dispatch rule."""
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+    mock_sip_management.ensure_dispatch_rule.return_value = True
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": room.pin_code},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 200
+    assert response.json() == {"status": "success"}
+    mock_sip_management.ensure_dispatch_rule.assert_called_once_with(room)
+
+
+def test_join_dispatch_rule_already_exists(settings, mock_sip_management, client):
+    """Requests should succeed when the dispatch rule already exists (idempotency)."""
+
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+    mock_sip_management.ensure_dispatch_rule.return_value = False
+
+    response = client.post(
+        "/api/v1.0/roomkit/join/",
+        {"pin_code": room.pin_code},
+        HTTP_AUTHORIZATION="Bearer testAuthToken",
+    )
+
+    assert response.status_code == 200
+    assert response.json() == {"status": "success"}
+    mock_sip_management.ensure_dispatch_rule.assert_called_once_with(room)
+
+
+def test_join_tracks_analytics_event(settings, mock_sip_management, client):
+    """Successful joins should be tracked with an analytics event."""
+
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+    mock_sip_management.ensure_dispatch_rule.return_value = True
+
+    with mock.patch("core.roomkit.viewsets.analytics.capture") as mock_capture:
+        response = client.post(
+            "/api/v1.0/roomkit/join/",
+            {"pin_code": room.pin_code},
+            HTTP_AUTHORIZATION="Bearer testAuthToken",
+        )
+
+    assert response.status_code == 200
+    mock_capture.assert_called_once()
+    _user, event, properties = mock_capture.call_args[0]
+    assert str(event) == "roomkit_joined"
+    assert properties == {
+        "room_id": str(room.pk),
+        "dispatch_rule_created": True,
+    }
+
+
+def test_join_sip_failure(settings, mock_sip_management, client):
+    """Requests should fail with a server error when the sip management service fails."""
+
+    settings.ROOMKIT_ENABLED = True
+    settings.ROOMKIT_SERVER_TO_SERVER_API_TOKEN = "testAuthToken"
+
+    room = RoomFactory(pin_code="1234567890")
+    mock_sip_management.ensure_dispatch_rule.side_effect = SIPException(
+        "Could not create dispatch rule"
+    )
+
+    with mock.patch("core.roomkit.viewsets.analytics.capture") as mock_capture:
+        response = client.post(
+            "/api/v1.0/roomkit/join/",
+            {"pin_code": room.pin_code},
+            HTTP_AUTHORIZATION="Bearer testAuthToken",
+            raise_request_exception=False,
+        )
+
+    assert response.status_code == 500
+    mock_sip_management.ensure_dispatch_rule.assert_called_once_with(room)
+    mock_capture.assert_not_called()

src/backend/core/tests/services/test_livekit_events.py

@@ -21,7 +21,10 @@ from core.services.livekit_events import (
 )
 from core.services.lobby import LobbyService
 from core.services.room_management import RoomManagementException
-from core.services.telephony import TelephonyException, TelephonyService
+from core.services.sip_management import (
+    SIPException,
+    SIPManagement,
+)
 from core.utils import NotificationError
 
 pytestmark = pytest.mark.django_db
@@ -59,7 +62,7 @@ def test_initialization(
     mock_token_verifier.assert_called_once_with(api_key, api_secret)
     mock_webhook_receiver.assert_called_once_with(mock_token_verifier.return_value)
     assert isinstance(service.lobby_service, LobbyService)
-    assert isinstance(service.telephony_service, TelephonyService)
+    assert isinstance(service.sip_management, SIPManagement)
     assert isinstance(service.recording_events, RecordingEventsService)
 
 
@@ -469,11 +472,11 @@ def test_handle_egress_ended_ignores_non_savable_recording(
 
 
 @mock.patch.object(LobbyService, "clear_room_cache")
-@mock.patch.object(TelephonyService, "delete_dispatch_rule")
+@mock.patch.object(SIPManagement, "delete_dispatch_rule")
 def test_handle_room_finished_clears_cache_and_deletes_dispatch_rule(
     mock_delete_dispatch_rule, mock_clear_cache, service, settings
 ):
-    """Should clear lobby cache and delete telephony dispatch rule when room finishes."""
+    """Should clear lobby cache and delete SIP dispatch rule when room finishes."""
     settings.ROOM_TELEPHONY_ENABLED = True
     mock_room_name = uuid.uuid4()
     mock_data = mock.MagicMock()
@@ -486,12 +489,31 @@ def test_handle_room_finished_clears_cache_and_deletes_dispatch_rule(
 
 
 @mock.patch.object(LobbyService, "clear_room_cache")
-@mock.patch.object(TelephonyService, "delete_dispatch_rule")
+@mock.patch.object(SIPManagement, "delete_dispatch_rule")
+def test_handle_room_finished_deletes_dispatch_rule_when_only_roomkit_enabled(
+    mock_delete_dispatch_rule, mock_clear_cache, service, settings
+):
+    """Should delete dispatch rule when only roomkit is enabled when room finishes."""
+    settings.ROOM_TELEPHONY_ENABLED = False
+    settings.ROOMKIT_ENABLED = True
+    mock_room_name = uuid.uuid4()
+    mock_data = mock.MagicMock()
+    mock_data.room.name = str(mock_room_name)
+
+    service._handle_room_finished(mock_data)
+
+    mock_delete_dispatch_rule.assert_called_once_with(mock_room_name)
+    mock_clear_cache.assert_called_once_with(mock_room_name)
+
+
+@mock.patch.object(LobbyService, "clear_room_cache")
+@mock.patch.object(SIPManagement, "delete_dispatch_rule")
 def test_handle_room_finished_skips_telephony_when_disabled(
     mock_delete_dispatch_rule, mock_clear_cache, service, settings
 ):
     """Should clear lobby cache but skip dispatch rule deletion when telephony is disabled."""
     settings.ROOM_TELEPHONY_ENABLED = False
+    settings.ROOMKIT_ENABLED = False
     mock_room_name = uuid.uuid4()
     mock_data = mock.MagicMock()
     mock_data.room.name = str(mock_room_name)
@@ -505,7 +527,7 @@ def test_handle_room_finished_skips_telephony_when_disabled(
 @mock.patch.object(
     LobbyService, "clear_room_cache", side_effect=Exception("Test error")
 )
-@mock.patch.object(TelephonyService, "delete_dispatch_rule")
+@mock.patch.object(SIPManagement, "delete_dispatch_rule")
 def test_handle_room_finished_raises_error_when_cache_clearing_fails(
     mock_delete_dispatch_rule, mock_clear_cache, service, settings
 ):
@@ -528,9 +550,9 @@ def test_handle_room_finished_raises_error_when_cache_clearing_fails(
 
 @mock.patch.object(LobbyService, "clear_room_cache")
 @mock.patch.object(
-    TelephonyService,
+    SIPManagement,
     "delete_dispatch_rule",
-    side_effect=TelephonyException("Test error"),
+    side_effect=SIPException("Test error"),
 )
 def test_handle_room_finished_raises_error_when_telephony_deletion_fails(
     mock_delete_dispatch_rule, mock_clear_cache, service, settings
@@ -541,7 +563,7 @@ def test_handle_room_finished_raises_error_when_telephony_deletion_fails(
     mock_data.room.name = "00000000-0000-0000-0000-000000000000"
 
     expected_error = (
-        "Failed to delete telephony dispatch rule for room "
+        "Failed to delete sip dispatch rule for room "
         "00000000-0000-0000-0000-000000000000"
     )
 
@@ -562,11 +584,11 @@ def test_handle_room_finished_raises_error_for_invalid_room_name(service):
         service._handle_room_finished(mock_data)
 
 
-@mock.patch.object(TelephonyService, "create_dispatch_rule")
+@mock.patch.object(SIPManagement, "ensure_dispatch_rule")
 def test_handle_room_started_creates_dispatch_rule_successfully(
-    mock_create_dispatch_rule, service, settings
+    mock_ensure_dispatch_rule, service, settings
 ):
-    """Should create telephony dispatch rule when room starts successfully."""
+    """Should ensure the SIP dispatch rule exists when room starts successfully."""
     settings.ROOM_TELEPHONY_ENABLED = True
     room = RoomFactory()
     mock_data = mock.MagicMock()
@@ -574,22 +596,75 @@ def test_handle_room_started_creates_dispatch_rule_successfully(
 
     service._handle_room_started(mock_data)
 
-    mock_create_dispatch_rule.assert_called_once_with(room)
+    mock_ensure_dispatch_rule.assert_called_once_with(room)
 
 
-@mock.patch.object(TelephonyService, "create_dispatch_rule")
+@mock.patch.object(SIPManagement, "ensure_dispatch_rule")
-def test_handle_room_started_skips_dispatch_rule_when_telephony_disabled(
+def test_handle_room_started_creates_dispatch_rule_when_only_roomkit_enabled(
-    mock_create_dispatch_rule, service, settings
+    mock_ensure_dispatch_rule, service, settings
 ):
-    """Should skip creating telephony dispatch rule when telephony is disabled during room start."""
+    """Should ensure the dispatch rule exists when only roomkit is enabled during room start."""
     settings.ROOM_TELEPHONY_ENABLED = False
+    settings.ROOMKIT_ENABLED = True
     room = RoomFactory()
     mock_data = mock.MagicMock()
     mock_data.room.name = str(room.id)
 
     service._handle_room_started(mock_data)
 
-    mock_create_dispatch_rule.assert_not_called()
+    mock_ensure_dispatch_rule.assert_called_once_with(room)
+
+
+@mock.patch.object(SIPManagement, "ensure_dispatch_rule", return_value=False)
+def test_handle_room_started_ignores_existing_dispatch_rule(
+    mock_ensure_dispatch_rule, service, settings
+):
+    """Should proceed silently when the dispatch rule already exists when room starts."""
+    settings.ROOM_TELEPHONY_ENABLED = True
+    room = RoomFactory()
+    mock_data = mock.MagicMock()
+    mock_data.room.name = str(room.id)
+
+    # ensure_dispatch_rule reports the rule as pre-existing: nothing to raise
+    service._handle_room_started(mock_data)
+
+    mock_ensure_dispatch_rule.assert_called_once_with(room)
+
+
+@mock.patch.object(
+    SIPManagement,
+    "ensure_dispatch_rule",
+    side_effect=SIPException("Test error"),
+)
+def test_handle_room_started_raises_error_when_dispatch_rule_creation_fails(
+    mock_ensure_dispatch_rule, service, settings
+):
+    """Should raise ActionFailedError when ensuring the dispatch rule fails when room starts."""
+    settings.ROOM_TELEPHONY_ENABLED = True
+    room = RoomFactory()
+    mock_data = mock.MagicMock()
+    mock_data.room.name = str(room.id)
+
+    expected_error = f"Failed to create sip dispatch rule for room {room.id}"
+
+    with pytest.raises(ActionFailedError, match=expected_error):
+        service._handle_room_started(mock_data)
+
+
+@mock.patch.object(SIPManagement, "ensure_dispatch_rule")
+def test_handle_room_started_skips_dispatch_rule_when_telephony_disabled(
+    mock_ensure_dispatch_rule, service, settings
+):
+    """Should skip ensuring the SIP dispatch rule when telephony is disabled during room start."""
+    settings.ROOM_TELEPHONY_ENABLED = False
+    settings.ROOMKIT_ENABLED = False
+    room = RoomFactory()
+    mock_data = mock.MagicMock()
+    mock_data.room.name = str(room.id)
+
+    service._handle_room_started(mock_data)
+
+    mock_ensure_dispatch_rule.assert_not_called()
 
 
 def test_handle_room_started_raises_error_for_invalid_room_name(service):

src/backend/core/tests/services/test_sip_management.py

@@ -1,5 +1,5 @@
 """
-Test telephony service.
+Test SIP mamagement service.
 """
 
 # pylint: disable=W0212
@@ -20,7 +20,11 @@ from livekit.protocol.sip import (
 
 from core.factories import RoomFactory
 from core.models import RoomAccessLevel
-from core.services.telephony import TelephonyException, TelephonyService
+from core.services.sip_management import (
+    DispatchRuleConflictError,
+    SIPException,
+    SIPManagement,
+)
 
 pytestmark = pytest.mark.django_db
 
@@ -35,9 +39,9 @@ def create_mock_livekit_client():
 
 def test_rule_name():
     """Test rule name generation."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
-    rule_name = telephony_service._rule_name(room.id)
+    rule_name = sip_management._rule_name(room.id)
 
     assert rule_name == f"SIP_{str(room.id)}"
 
@@ -45,14 +49,14 @@ def test_rule_name():
 @mock.patch("core.utils.create_livekit_client")
 def test_create_dispatch_rule_success(mock_client_factory):
     """Test successful dispatch rule creation."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_api = create_mock_livekit_client()
     mock_api.sip.create_sip_dispatch_rule = mock.AsyncMock()
     mock_client_factory.return_value = mock_api
 
-    telephony_service.create_dispatch_rule(room)
+    sip_management.create_dispatch_rule(room)
 
     mock_api.sip.create_sip_dispatch_rule.assert_called_once()
     create_request = mock_api.sip.create_sip_dispatch_rule.call_args[1]["create"]
@@ -67,7 +71,7 @@ def test_create_dispatch_rule_success(mock_client_factory):
 @mock.patch("core.utils.create_livekit_client")
 def test_create_dispatch_rule_api_failure(mock_client_factory):
     """Test dispatch rule creation when API fails."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_api = create_mock_livekit_client()
@@ -76,8 +80,8 @@ def test_create_dispatch_rule_api_failure(mock_client_factory):
     )
     mock_client_factory.return_value = mock_api
 
-    with pytest.raises(TelephonyException, match="Could not create dispatch rule"):
+    with pytest.raises(SIPException, match="Could not create dispatch rule"):
-        telephony_service.create_dispatch_rule(room)
+        sip_management.create_dispatch_rule(room)
 
     mock_api.sip.create_sip_dispatch_rule.assert_called_once()
     mock_api.aclose.assert_called_once()
@@ -86,7 +90,7 @@ def test_create_dispatch_rule_api_failure(mock_client_factory):
 @mock.patch("core.utils.create_livekit_client")
 def test_list_dispatch_rules_ids_success(mock_client_factory):
     """Test successful listing of dispatch rule IDs."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_rules = [
@@ -111,7 +115,7 @@ def test_list_dispatch_rules_ids_success(mock_client_factory):
     )
     mock_client_factory.return_value = mock_api
 
-    result = async_to_sync(telephony_service._list_dispatch_rules_ids)(room.id)
+    result = async_to_sync(sip_management._list_dispatch_rules_ids)(room.id)
 
     assert len(result) == 2
     assert "rule-1" in result
@@ -127,7 +131,7 @@ def test_list_dispatch_rules_ids_success(mock_client_factory):
 @mock.patch("core.utils.create_livekit_client")
 def test_list_dispatch_rules_ids_empty_response(mock_client_factory):
     """Test listing dispatch rule IDs when no rules exist."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_api = create_mock_livekit_client()
@@ -136,7 +140,7 @@ def test_list_dispatch_rules_ids_empty_response(mock_client_factory):
     )
     mock_client_factory.return_value = mock_api
 
-    result = async_to_sync(telephony_service._list_dispatch_rules_ids)(room.id)
+    result = async_to_sync(sip_management._list_dispatch_rules_ids)(room.id)
 
     assert result == []
     mock_api.aclose.assert_called_once()
@@ -145,7 +149,7 @@ def test_list_dispatch_rules_ids_empty_response(mock_client_factory):
 @mock.patch("core.utils.create_livekit_client")
 def test_list_dispatch_rules_ids_no_matching_rules(mock_client_factory):
     """Test listing dispatch rule IDs when no rules match the room."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_rules = [
@@ -163,7 +167,7 @@ def test_list_dispatch_rules_ids_no_matching_rules(mock_client_factory):
     )
     mock_client_factory.return_value = mock_api
 
-    result = async_to_sync(telephony_service._list_dispatch_rules_ids)(room.id)
+    result = async_to_sync(sip_management._list_dispatch_rules_ids)(room.id)
 
     assert result == []
     mock_api.aclose.assert_called_once()
@@ -172,7 +176,7 @@ def test_list_dispatch_rules_ids_no_matching_rules(mock_client_factory):
 @mock.patch("core.utils.create_livekit_client")
 def test_list_dispatch_rules_ids_api_failure(mock_client_factory):
     """Test listing dispatch rule IDs when API fails."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_api = create_mock_livekit_client()
@@ -181,34 +185,34 @@ def test_list_dispatch_rules_ids_api_failure(mock_client_factory):
     )
     mock_client_factory.return_value = mock_api
 
-    with pytest.raises(TelephonyException, match="Could not list dispatch rules"):
+    with pytest.raises(SIPException, match="Could not list dispatch rules"):
-        async_to_sync(telephony_service._list_dispatch_rules_ids)(room.id)
+        async_to_sync(sip_management._list_dispatch_rules_ids)(room.id)
 
     mock_api.sip.list_sip_dispatch_rule.assert_called_once()
     mock_api.aclose.assert_called_once()
 
 
-@mock.patch("core.services.telephony.TelephonyService._list_dispatch_rules_ids")
+@mock.patch("core.services.sip_management.SIPManagement._list_dispatch_rules_ids")
 @mock.patch("core.utils.create_livekit_client")
 def test_delete_dispatch_rule_no_rules(mock_client_factory, mock_list_rules):
     """Test deleting dispatch rules when no rules exist."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_list_rules.return_value = []
 
-    result = telephony_service.delete_dispatch_rule(room.id)
+    result = sip_management.delete_dispatch_rule(room.id)
 
     assert result is False
     mock_list_rules.assert_called_once_with(room.id)
     mock_client_factory.assert_not_called()
 
 
-@mock.patch("core.services.telephony.TelephonyService._list_dispatch_rules_ids")
+@mock.patch("core.services.sip_management.SIPManagement._list_dispatch_rules_ids")
 @mock.patch("core.utils.create_livekit_client")
 def test_delete_dispatch_rule_single_rule(mock_client_factory, mock_list_rules):
     """Test deleting a single dispatch rule."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_list_rules.return_value = ["rule-1"]
@@ -216,7 +220,7 @@ def test_delete_dispatch_rule_single_rule(mock_client_factory, mock_list_rules):
     mock_api.sip.delete_sip_dispatch_rule = mock.AsyncMock()
     mock_client_factory.return_value = mock_api
 
-    result = telephony_service.delete_dispatch_rule(room.id)
+    result = sip_management.delete_dispatch_rule(room.id)
 
     assert result is True
     mock_api.sip.delete_sip_dispatch_rule.assert_called_once()
@@ -226,11 +230,11 @@ def test_delete_dispatch_rule_single_rule(mock_client_factory, mock_list_rules):
     mock_api.aclose.assert_called_once()
 
 
-@mock.patch("core.services.telephony.TelephonyService._list_dispatch_rules_ids")
+@mock.patch("core.services.sip_management.SIPManagement._list_dispatch_rules_ids")
 @mock.patch("core.utils.create_livekit_client")
 def test_delete_dispatch_rule_multiple_rules(mock_client_factory, mock_list_rules):
     """Test deleting multiple dispatch rules."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_list_rules.return_value = ["rule-1", "rule-2", "rule-3"]
@@ -238,7 +242,7 @@ def test_delete_dispatch_rule_multiple_rules(mock_client_factory, mock_list_rule
     mock_api.sip.delete_sip_dispatch_rule = mock.AsyncMock()
     mock_client_factory.return_value = mock_api
 
-    result = telephony_service.delete_dispatch_rule(room.id)
+    result = sip_management.delete_dispatch_rule(room.id)
 
     assert result is True
     assert mock_api.sip.delete_sip_dispatch_rule.call_count == 3
@@ -253,11 +257,11 @@ def test_delete_dispatch_rule_multiple_rules(mock_client_factory, mock_list_rule
     mock_api.aclose.assert_called_once()
 
 
-@mock.patch("core.services.telephony.TelephonyService._list_dispatch_rules_ids")
+@mock.patch("core.services.sip_management.SIPManagement._list_dispatch_rules_ids")
 @mock.patch("core.utils.create_livekit_client")
 def test_delete_dispatch_rule_partial_failure(mock_client_factory, mock_list_rules):
     """Test deleting multiple dispatch rules when one deletion fails."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_list_rules.return_value = ["rule-1", "rule-2", "rule-3"]
@@ -277,18 +281,18 @@ def test_delete_dispatch_rule_partial_failure(mock_client_factory, mock_list_rul
     )
     mock_client_factory.return_value = mock_api
 
-    with pytest.raises(TelephonyException, match="Could not delete dispatch rules"):
+    with pytest.raises(SIPException, match="Could not delete dispatch rules"):
-        telephony_service.delete_dispatch_rule(room.id)
+        sip_management.delete_dispatch_rule(room.id)
 
     assert mock_api.sip.delete_sip_dispatch_rule.call_count == 2
     mock_api.aclose.assert_called_once()
 
 
-@mock.patch("core.services.telephony.TelephonyService._list_dispatch_rules_ids")
+@mock.patch("core.services.sip_management.SIPManagement._list_dispatch_rules_ids")
 @mock.patch("core.utils.create_livekit_client")
 def test_delete_dispatch_rule_api_failure(mock_client_factory, mock_list_rules):
     """Test deleting dispatch rules when API fails immediately."""
-    telephony_service = TelephonyService()
+    sip_management = SIPManagement()
     room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
 
     mock_list_rules.return_value = ["rule-1"]
@@ -298,8 +302,131 @@ def test_delete_dispatch_rule_api_failure(mock_client_factory, mock_list_rules):
     )
     mock_client_factory.return_value = mock_api
 
-    with pytest.raises(TelephonyException, match="Could not delete dispatch rules"):
+    with pytest.raises(SIPException, match="Could not delete dispatch rules"):
-        telephony_service.delete_dispatch_rule(room.id)
+        sip_management.delete_dispatch_rule(room.id)
 
     mock_api.sip.delete_sip_dispatch_rule.assert_called_once()
     mock_api.aclose.assert_called_once()
+
+
+@mock.patch("core.utils.create_livekit_client")
+def test_create_dispatch_rule_conflict_raises_dedicated_error(mock_client_factory):
+    """Test that a LiveKit conflict error raises DispatchRuleConflictError."""
+    sip_management = SIPManagement()
+    room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
+
+    mock_api = create_mock_livekit_client()
+    mock_api.sip.create_sip_dispatch_rule = mock.AsyncMock(
+        side_effect=TwirpError(
+            msg=(
+                "Dispatch rule for the same trunk, inbound number, number, and "
+                "PIN combination already exists in dispatch rule"
+            ),
+            code="already_exists",
+            status=409,
+        )
+    )
+    mock_client_factory.return_value = mock_api
+
+    with pytest.raises(DispatchRuleConflictError):
+        sip_management.create_dispatch_rule(room)
+
+    mock_api.aclose.assert_called_once()
+
+
+@mock.patch("core.utils.create_livekit_client")
+def test_ensure_dispatch_rule_creates_when_missing(mock_client_factory):
+    """Test that ensure_dispatch_rule creates the rule when none exists."""
+    sip_management = SIPManagement()
+    room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
+
+    mock_api = create_mock_livekit_client()
+    mock_api.sip.list_sip_dispatch_rule = mock.AsyncMock(
+        return_value=ListSIPDispatchRuleResponse(items=[])
+    )
+    mock_api.sip.create_sip_dispatch_rule = mock.AsyncMock()
+    mock_client_factory.return_value = mock_api
+
+    created = sip_management.ensure_dispatch_rule(room)
+
+    assert created is True
+    mock_api.sip.create_sip_dispatch_rule.assert_called_once()
+    create_request = mock_api.sip.create_sip_dispatch_rule.call_args[1]["create"]
+
+    assert isinstance(create_request, CreateSIPDispatchRuleRequest)
+    assert create_request.name == f"SIP_{str(room.id)}"
+    assert create_request.rule.dispatch_rule_direct.room_name == str(room.id)
+    assert create_request.rule.dispatch_rule_direct.pin == str(room.pin_code)
+
+
+@mock.patch("core.utils.create_livekit_client")
+def test_ensure_dispatch_rule_skips_when_existing(mock_client_factory):
+    """Test that ensure_dispatch_rule is idempotent when the rule already exists."""
+    sip_management = SIPManagement()
+    room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
+
+    existing_rule = SIPDispatchRuleInfo(
+        sip_dispatch_rule_id="rule-1", name=f"SIP_{str(room.id)}"
+    )
+    mock_api = create_mock_livekit_client()
+    mock_api.sip.list_sip_dispatch_rule = mock.AsyncMock(
+        return_value=ListSIPDispatchRuleResponse(items=[existing_rule])
+    )
+    mock_api.sip.create_sip_dispatch_rule = mock.AsyncMock()
+    mock_client_factory.return_value = mock_api
+
+    created = sip_management.ensure_dispatch_rule(room)
+
+    assert created is False
+    mock_api.sip.create_sip_dispatch_rule.assert_not_called()
+
+
+@mock.patch("core.utils.create_livekit_client")
+def test_ensure_dispatch_rule_returns_false_on_conflict(mock_client_factory):
+    """Test that ensure_dispatch_rule tolerates a concurrent rule creation.
+
+    If the rule is created by a concurrent caller (e.g. the LiveKit webhook)
+    between the existence check and the creation, LiveKit rejects the
+    duplicate and ensure_dispatch_rule reports the rule as already existing.
+    """
+    sip_management = SIPManagement()
+    room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
+
+    mock_api = create_mock_livekit_client()
+    mock_api.sip.list_sip_dispatch_rule = mock.AsyncMock(
+        return_value=ListSIPDispatchRuleResponse(items=[])
+    )
+    mock_api.sip.create_sip_dispatch_rule = mock.AsyncMock(
+        side_effect=TwirpError(
+            msg=(
+                "Dispatch rule for the same trunk, inbound number, number, and "
+                "PIN combination already exists in dispatch rule"
+            ),
+            code="already_exists",
+            status=409,
+        )
+    )
+    mock_client_factory.return_value = mock_api
+
+    created = sip_management.ensure_dispatch_rule(room)
+
+    assert created is False
+
+
+@mock.patch("core.utils.create_livekit_client")
+def test_ensure_dispatch_rule_raises_on_other_failures(mock_client_factory):
+    """Test that ensure_dispatch_rule propagates unexpected LiveKit failures."""
+    sip_management = SIPManagement()
+    room = RoomFactory(access_level=RoomAccessLevel.RESTRICTED, pin_code="1234")
+
+    mock_api = create_mock_livekit_client()
+    mock_api.sip.list_sip_dispatch_rule = mock.AsyncMock(
+        return_value=ListSIPDispatchRuleResponse(items=[])
+    )
+    mock_api.sip.create_sip_dispatch_rule = mock.AsyncMock(
+        side_effect=TwirpError(msg="Internal server error", code="unknown", status=500)
+    )
+    mock_client_factory.return_value = mock_api
+
+    with pytest.raises(SIPException, match="Could not create dispatch rule"):
+        sip_management.ensure_dispatch_rule(room)

src/backend/core/tests/test_models_rooms.py

@@ -184,12 +184,13 @@ def test_models_rooms_is_public_property():
 
 
 @mock.patch.object(Room, "generate_unique_pin_code")
-def test_telephony_disabled_skips_pin_generation(
+def test_telephony_and_roomkit_disabled_skips_pin_generation(
     mock_generate_unique_pin_code, settings
 ):
-    """Telephony disabled should not generate pin codes."""
+    """Telephony and roomkit both disabled should not generate pin codes."""
 
     settings.ROOM_TELEPHONY_ENABLED = False
+    settings.ROOMKIT_ENABLED = False
 
     room = RoomFactory()
 
@@ -197,6 +198,18 @@ def test_telephony_disabled_skips_pin_generation(
     assert room.pin_code is None
 
 
+def test_roomkit_enabled_generates_pin_code(settings):
+    """Roomkit enabled alone should generate pin codes, even without telephony."""
+
+    settings.ROOM_TELEPHONY_ENABLED = False
+    settings.ROOMKIT_ENABLED = True
+
+    room = RoomFactory()
+
+    assert room.pin_code is not None
+    assert len(room.pin_code) == settings.ROOM_TELEPHONY_PIN_LENGTH
+
+
 def test_default_and_custom_pin_length(settings):
     """Pin codes should be created with correct configured length."""
 

src/backend/core/urls.py

@@ -9,6 +9,7 @@ from rest_framework.routers import DefaultRouter, SimpleRouter
 from core.addons import viewsets as addons_viewsets
 from core.api import get_frontend_configuration, viewsets
 from core.external_api import viewsets as external_viewsets
+from core.roomkit import viewsets as roomkit_viewsets
 
 # - Main endpoints
 router = DefaultRouter()
@@ -19,6 +20,11 @@ router.register("files", viewsets.FileViewSet, basename="files")
 router.register(
     "resource-accesses", viewsets.ResourceAccessViewSet, basename="resource_accesses"
 )
+router.register(
+    "roomkit",
+    roomkit_viewsets.RoomKitViewSet,
+    basename="roomkit",
+)
 router.register(
     "addons/sessions",
     addons_viewsets.SessionViewSet,

src/backend/meet/settings.py

@@ -349,6 +349,11 @@ class Base(Configuration):
                 environ_name="CREATION_CALLBACK_THROTTLE_RATES",
                 environ_prefix=None,
             ),
+            "roomkit_join": values.Value(
+                default="300/minute",
+                environ_name="ROOMKIT_JOIN_THROTTLE_RATES",
+                environ_prefix=None,
+            ),
         },
     }
     MONITORED_THROTTLE_FAILURE_CALLBACK = (
@@ -881,6 +886,21 @@ class Base(Configuration):
         environ_prefix=None,
     )
 
+    # Roomkit (meeting-room SIP devices) integration
+    ROOMKIT_ENABLED = values.BooleanValue(
+        False,
+        environ_name="ROOMKIT_ENABLED",
+        environ_prefix=None,
+    )
+    # Server-to-server API token allowing the LiveKit SIP module to call the
+    # roomkit endpoints (e.g. join a room on behalf of a meeting-room device
+    # dialing in before any WebRTC participant).
+    ROOMKIT_SERVER_TO_SERVER_API_TOKEN = SecretFileValue(
+        None,
+        environ_name="ROOMKIT_SERVER_TO_SERVER_API_TOKEN",
+        environ_prefix=None,
+    )
+
     # Subtitles settings
     ROOM_SUBTITLE_ENABLED = values.BooleanValue(
         False, environ_name="ROOM_SUBTITLE_ENABLED", environ_prefix=None

src/frontend/src/components/Avatar.tsx

@@ -59,10 +59,9 @@ export const Avatar = React.memo(
           <text
             x="50"
             y="50"
-            dy="-0.08em"
             textAnchor="middle"
             dominantBaseline="central"
-            fontSize="52"
+            fontSize={initials.length > 1 ? 48 : 52}
             fontWeight="500"
             fill="currentColor"
           >