User Interaction for Call Redirection service in Telecom

- Show UX if Telecom gets user-defined service's timeout.
When Telecom does not receive a response from user-defined service, Telecom
will cancel the outgoing call.

- Show UX if Telecom gets confirmFirst request from user-defined service's
timeout.
When Telecom's Call Redirection service receives the redirected call
from user's application, it may show an UX to confirm with users if they
want to process with the call.

Design doc: go/telecom-outflow-ux

Bug: 64959558
Test: Treehugger; Manually Telecom test app and see two types of UX
 sucessfully show up
Change-Id: Ida0d46967bcaab3e4b621a5e635a0ac04c717033
Merged-In: Ida0d46967bcaab3e4b621a5e635a0ac04c717033
(cherry picked from commit e976e68134e125d9876b4fddc0befdfbb75bc19c)
diff --git a/res/values/strings.xml b/res/values/strings.xml
index da61da8..0644a65 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -281,6 +281,12 @@
          ongoing call in the app "other_app". -->
     <string name="alert_outgoing_call">Placing this call will end your <xliff:g id="other_app">%1$s</xliff:g> call.</string>
 
+    <!-- Alert dialog content used to ask the user to confirm if they want to place a new outgoing call redirected by the app "other_app". -->
+    <string name="alert_redirect_outgoing_call">Allow <xliff:g id="other_app">%1$s</xliff:g> to place call using a different number or account.</string>
+
+    <!-- Alert dialog content used to tell the user the call is canceled because no response from the call redirection app "other_app". -->
+    <string name="alert_redirect_outgoing_call_timeout">Call can\'t be placed by <xliff:g id="other_app">%1$s</xliff:g>. Try using a different call redirecting app or contacting the developer for help.</string>
+
     <!-- The name of a feature available under the Call settings. -->
     <string name="phone_settings_call_blocking_txt">Call Blocking</string>
     <!-- Call type to be blocked. See the explanatory text "phone_settings_number_not_in_contact_summary_txt". -->