From 1669113352e740bd953f6d692037de8662f81547 Mon Sep 17 00:00:00 2001
From: Sylvain Berfini <sylvain.berfini@belledonne-communications.com>
Date: Tue, 18 Nov 2025 09:20:46 +0100
Subject: [PATCH] Made call redirection service prototype work

---
 app/src/main/AndroidManifest.xml              |  9 +++
 .../linphone/activities/main/MainActivity.kt  | 16 +++++
 .../telecom/TelecomConnectionService.kt       | 13 +++-
 .../telecom/TelecomRedirectionService.kt      | 69 +++++++++++++++++++
 4 files changed, 105 insertions(+), 2 deletions(-)
 create mode 100644 app/src/main/java/org/linphone/telecom/TelecomRedirectionService.kt

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index c1b106232..7df1fe3ed 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -217,6 +217,15 @@
             </intent-filter>
         </service>
 
+        <service
+            android:name=".telecom.TelecomRedirectionService"
+            android:exported="true"
+            android:permission="android.permission.BIND_CALL_REDIRECTION_SERVICE">
+            <intent-filter>
+                <action android:name="android.telecom.CallRedirectionService"/>
+            </intent-filter>
+        </service>
+
         <!-- Receivers -->
 
         <receiver android:name=".core.CorePushReceiver"
diff --git a/app/src/main/java/org/linphone/activities/main/MainActivity.kt b/app/src/main/java/org/linphone/activities/main/MainActivity.kt
index 78798c4c0..aed5e44f5 100644
--- a/app/src/main/java/org/linphone/activities/main/MainActivity.kt
+++ b/app/src/main/java/org/linphone/activities/main/MainActivity.kt
@@ -20,6 +20,7 @@
 package org.linphone.activities.main
 
 import android.app.Dialog
+import android.app.role.RoleManager
 import android.content.ComponentCallbacks2
 import android.content.Context
 import android.content.Intent
@@ -260,6 +261,8 @@ class MainActivity : GenericActivity(), SnackBarActivity, NavController.OnDestin
             Log.d("[Main Activity] Found post create intent")
             handleIntentParams(intent)
         }
+
+        requestCallRedirectionRole()
     }
 
     override fun onDestroy() {
@@ -737,4 +740,17 @@ class MainActivity : GenericActivity(), SnackBarActivity, NavController.OnDestin
         dialog.show()
         authenticationRequiredDialog = dialog
     }
+
+    private fun requestCallRedirectionRole() {
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
+            val roleManager: RoleManager = getSystemService(Context.ROLE_SERVICE) as RoleManager
+            // Check if the app needs to register call redirection role.
+            val shouldRequestRole = roleManager.isRoleAvailable(RoleManager.ROLE_CALL_REDIRECTION) &&
+                !roleManager.isRoleHeld(RoleManager.ROLE_CALL_REDIRECTION)
+            if (shouldRequestRole) {
+                val intent = roleManager.createRequestRoleIntent(RoleManager.ROLE_CALL_REDIRECTION)
+                startActivityForResult(intent, 123456)
+            }
+        }
+    }
 }
diff --git a/app/src/main/java/org/linphone/telecom/TelecomConnectionService.kt b/app/src/main/java/org/linphone/telecom/TelecomConnectionService.kt
index fddfc8bb6..06b81ab87 100644
--- a/app/src/main/java/org/linphone/telecom/TelecomConnectionService.kt
+++ b/app/src/main/java/org/linphone/telecom/TelecomConnectionService.kt
@@ -104,8 +104,17 @@ class TelecomConnectionService : ConnectionService() {
         request: ConnectionRequest
     ): Connection {
         if (coreContext.core.callsNb == 0) {
-            Log.w("[Telecom Connection Service] No call in Core, aborting outgoing connection!")
-            return Connection.createCanceledConnection()
+            val uri = request.address
+            val address = coreContext.core.interpretUrl(uri.toString(), true)
+            if (address != null) {
+                Log.i(
+                    "[Telecom Connection Service] Starting call to [${address.asStringUriOnly()}]"
+                )
+                coreContext.startCall(address = address)
+            } else {
+                Log.w("[Telecom Connection Service] No call in Core, aborting outgoing connection!")
+                return Connection.createCanceledConnection()
+            }
         }
 
         val accountHandle = request.accountHandle
diff --git a/app/src/main/java/org/linphone/telecom/TelecomRedirectionService.kt b/app/src/main/java/org/linphone/telecom/TelecomRedirectionService.kt
new file mode 100644
index 000000000..43da38816
--- /dev/null
+++ b/app/src/main/java/org/linphone/telecom/TelecomRedirectionService.kt
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2010-2025 Belledonne Communications SARL.
+ *
+ * This file is part of linphone-android
+ * (see https://www.linphone.org).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.linphone.telecom
+
+import android.net.Uri
+import android.os.Build
+import android.telecom.CallRedirectionService
+import android.telecom.PhoneAccountHandle
+import androidx.annotation.RequiresApi
+import androidx.core.net.toUri
+import org.linphone.LinphoneApplication.Companion.coreContext
+import org.linphone.core.tools.Log
+
+@RequiresApi(Build.VERSION_CODES.Q)
+class TelecomRedirectionService : CallRedirectionService() {
+    companion object {
+        private const val TAG = "[Telecom Redirection Service]"
+    }
+
+    override fun onPlaceCall(
+        handle: Uri,
+        initialPhoneAccount: PhoneAccountHandle,
+        allowInteractiveResponse: Boolean
+    ) {
+        Log.i("$TAG onPlaceCall called with URI [$handle]")
+
+        if (handle.scheme != "tel") {
+            placeCallUnmodified()
+            return
+        }
+
+        val number = handle.toString().substring("tel:".length)
+        Log.i("$TAG Extracted number [$number] from tel: URI")
+
+        if (TelecomHelper.exists()) {
+            val telecomHelper = TelecomHelper.get()
+            val phoneAccount = telecomHelper.findExistingAccount(coreContext.context)
+            val handle = phoneAccount?.accountHandle
+            if (handle != null) {
+                redirectCall(
+                    "sip:sylvain@sip.linphone.org".toUri(),
+                    handle,
+                    allowInteractiveResponse
+                )
+            } else {
+                placeCallUnmodified()
+            }
+        } else {
+            placeCallUnmodified()
+        }
+    }
+}