From 14e25412bdbf9493b6f46500dba469e82705ae30 Mon Sep 17 00:00:00 2001
From: Tyler Gunn <tgunn@google.com>
Date: Mon, 29 Jan 2018 15:56:22 -0800
Subject: [PATCH] Enable telephony audio device for pixel devices.

Pixel devices support a special audio device called TYPE_TELEPHONY which
enables system apps to output audio in the telephony outgoing audio stream.
This is used for some carriers to play a "call recording tone" which the
remote party will hear if the user starts recording audio with a call
recording app.

Test: Manual testing
Bug: 64138141
Change-Id: I6e1981a4baaea34c0cea54f1af7aa2945c6e09a6
---
 overlay/packages/services/Telephony/res/values/config.xml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/overlay/packages/services/Telephony/res/values/config.xml b/overlay/packages/services/Telephony/res/values/config.xml
index 29ef7ce5..297ef385 100644
--- a/overlay/packages/services/Telephony/res/values/config.xml
+++ b/overlay/packages/services/Telephony/res/values/config.xml
@@ -21,4 +21,9 @@
     <bool name="config_support_handover_from">true</bool>
     <!-- Show enabled lte option for lte device -->
     <bool name="config_enabled_lte" translatable="false">true</bool>
+    <!-- This device supports the AudioManager Telephony audio device and output onto this
+         device using {@link AudioDeviceInfo#TYPE_TELEPHONY}.
+         This is used to support carriers which generate a recording tone to the remote party
+         when a call recording app is in use. -->
+    <bool name="config_support_telephony_audio_device">true</bool>
 </resources>