diff --git a/cmd/chat.go b/cmd/chat.go
index ec24fbc2..a048d3ae 100644
--- a/cmd/chat.go
+++ b/cmd/chat.go
@@ -64,6 +64,7 @@ type Claims struct {
 	FirstName               string         `json:"first_name,omitempty"`
 	LastName                string         `json:"last_name,omitempty"`
 	PhoneNumber             string         `json:"phone_number,omitempty"`
+	PhoneNumberCountryCode  string         `json:"phone_number_country_code,omitempty"`
 	ContactCustomAttributes map[string]any `json:"contact_custom_attributes,omitempty"`
 	jwt.RegisteredClaims
 }
@@ -388,6 +389,10 @@ func handleAuthExchange(r *fastglue.Request) error {
 	if len(claims.PhoneNumber) > maxPhoneNumberLength {
 		return r.SendErrorEnvelope(fasthttp.StatusBadRequest, app.i18n.Ts("globals.messages.maxLength", "max", strconv.Itoa(maxPhoneNumberLength)), nil, envelope.InputError)
 	}
+	// Country code is cosmetic - drop an invalid one instead of failing the whole exchange.
+	if len(claims.PhoneNumberCountryCode) > maxPhoneCountryCodeLength {
+		claims.PhoneNumberCountryCode = ""
+	}
 
 	// Resolve or create the contact.
 	contactID, err := resolveOrCreateExternalContact(app, claims)
@@ -774,8 +779,8 @@ func resolveOrCreateExternalContact(app *App, claims Claims) (int, error) {
 	// Sync name/email/phone from JWT only if changed.
 	if user.ID > 0 && claims.ExternalUserID != "" {
 		if user.FirstName != claims.FirstName || user.LastName != claims.LastName || user.Email.String != claims.Email ||
-			user.PhoneNumber.String != claims.PhoneNumber {
-			if err := app.user.UpdateContactBasicInfo(user.ID, claims.FirstName, claims.LastName, claims.Email, claims.PhoneNumber); err != nil {
+			user.PhoneNumber.String != claims.PhoneNumber || user.PhoneNumberCountryCode.String != claims.PhoneNumberCountryCode {
+			if err := app.user.UpdateContactBasicInfo(user.ID, claims.FirstName, claims.LastName, claims.Email, claims.PhoneNumber, claims.PhoneNumberCountryCode); err != nil {
 				app.lo.Error("error updating contact basic info", "contact_id", user.ID, "error", err)
 			}
 		}
@@ -785,12 +790,13 @@ func resolveOrCreateExternalContact(app *App, claims Claims) (int, error) {
 	// Create contact if not found.
 	if claims.ExternalUserID != "" {
 		user := umodels.User{
-			FirstName:        claims.FirstName,
-			LastName:         claims.LastName,
-			Email:            null.NewString(claims.Email, true),
-			PhoneNumber:      null.NewString(claims.PhoneNumber, claims.PhoneNumber != ""),
-			ExternalUserID:   null.NewString(claims.ExternalUserID, true),
-			CustomAttributes: marshalCustomAttributes(claims.ContactCustomAttributes, app),
+			FirstName:              claims.FirstName,
+			LastName:               claims.LastName,
+			Email:                  null.NewString(claims.Email, true),
+			PhoneNumber:            null.NewString(claims.PhoneNumber, claims.PhoneNumber != ""),
+			PhoneNumberCountryCode: null.NewString(claims.PhoneNumberCountryCode, claims.PhoneNumberCountryCode != ""),
+			ExternalUserID:         null.NewString(claims.ExternalUserID, true),
+			CustomAttributes:       marshalCustomAttributes(claims.ContactCustomAttributes, app),
 		}
 		if err := app.user.CreateContact(&user); err != nil {
 			return 0, err
diff --git a/frontend/apps/main/src/features/admin/inbox/LivechatInboxForm.vue b/frontend/apps/main/src/features/admin/inbox/LivechatInboxForm.vue
index 01da5c53..d7cb9919 100644
--- a/frontend/apps/main/src/features/admin/inbox/LivechatInboxForm.vue
+++ b/frontend/apps/main/src/features/admin/inbox/LivechatInboxForm.vue
@@ -1119,7 +1119,8 @@ const jwtPayloadExample = computed(() => {
   "email": "user@example.com",                // Required: User's email
   "first_name": "John",                       // Required: User's first name
   "last_name": "Doe",                         // Optional: User's last name
-  "phone_number": "+15551234567",             // Optional: User's phone number
+  "phone_number": "9876543210",                // Optional: User's phone number (no country calling code)
+  "phone_number_country_code": "IN",          // Optional: ISO 3166-1 alpha-2 country code (e.g. "IN", "US")
   "exp": 1735689600,                          // Required: Expiration time (Unix timestamp in seconds)
   "contact_custom_attributes": {              // Optional: Contact-level attributes
     "plan": "premium",
diff --git a/internal/user/contact.go b/internal/user/contact.go
index 02bc3bbe..c15b1901 100644
--- a/internal/user/contact.go
+++ b/internal/user/contact.go
@@ -75,8 +75,8 @@ func (u *Manager) CreateContact(user *models.User) error {
 }
 
 // UpdateContactBasicInfo updates only the name, email and phone of a contact.
-func (u *Manager) UpdateContactBasicInfo(id int, firstName, lastName, email, phoneNumber string) error {
-	if _, err := u.q.UpdateContactBasicInfo.Exec(id, firstName, lastName, strings.ToLower(strings.TrimSpace(email)), phoneNumber); err != nil {
+func (u *Manager) UpdateContactBasicInfo(id int, firstName, lastName, email, phoneNumber, phoneNumberCountryCode string) error {
+	if _, err := u.q.UpdateContactBasicInfo.Exec(id, firstName, lastName, strings.ToLower(strings.TrimSpace(email)), phoneNumber, phoneNumberCountryCode); err != nil {
 		u.lo.Error("error updating contact basic info", "error", err)
 		return fmt.Errorf("updating contact basic info: %w", err)
 	}
diff --git a/internal/user/queries.sql b/internal/user/queries.sql
index 53f0ac88..a64a2dae 100644
--- a/internal/user/queries.sql
+++ b/internal/user/queries.sql
@@ -240,6 +240,7 @@ SET first_name = COALESCE(NULLIF($2, ''), first_name),
     last_name = COALESCE(NULLIF($3, ''), last_name),
     email = COALESCE(NULLIF($4, ''), email),
     phone_number = COALESCE(NULLIF($5, ''), phone_number),
+    phone_number_country_code = COALESCE(NULLIF($6, ''), phone_number_country_code),
     updated_at = now()
 WHERE id = $1 AND type IN ('contact', 'visitor');