CDD: Clarify default dialer language
The intention of the existing CDD language is to communicate that a
device should allow the user to choose a different "Dialer/Phone"
app to replace the stock dialer/phone app. This not only means for
placing calls, but also for providing the UI for incoming calls as
well.
We have seen reports in the field from developers creating such an
app that on some devices, the setting will work for most calls, but
sometimes incoming calls will result in the stock dialer UI being
shown instead of the user selected default dialer. Since this is
an intermittent issue its hard to test with a CTS test. Setting
the expectation through better requirements language.
Bug: 73368490
Test: Doc update
Change-Id: Ieed7c0c98a131c5749ffb64a93355f942eb02d5c
diff --git a/3_software/3_2_soft-api-compatibility.md b/3_software/3_2_soft-api-compatibility.md
index 0d4a3ce..8bfa05b 100644
--- a/3_software/3_2_soft-api-compatibility.md
+++ b/3_software/3_2_soft-api-compatibility.md
@@ -367,6 +367,9 @@
https://developer.android.com/reference/android/telecom/TelecomManager.html#ACTION_CHANGE_DEFAULT_DIALER)
intent to show a dialog to allow the user to change the default Phone
application.
+ * MUST use the user-selected default Phone app's UI for incoming and
+ outgoing calls except for emergency calls, which would use the
+ preloaded Phone app.
* [C-2-3] MUST honor the [android.telecom.action.CHANGE_PHONE_ACCOUNTS](
https://developer.android.com/reference/android/telecom/TelecomManager.html#ACTION_CHANGE_PHONE_ACCOUNTS)
