commit 8d6939acf786e7d7ea11cafadbe2a68e399da7e0
author Hunsuk Choi <forestchoi@google.com> Fri Jan 13 09:09:59 2023 +0000
committer Hunsuk Choi <forestchoi@google.com> Thu Jan 19 00:17:20 2023 +0000
tree f2ff11f2de954955d9e6685ee9a0332311722fff
parent f2106191035d89de1193332cf8fac6877c4563d5

Change the way to determine the availability of emergency over VoWi-Fi

Current implementation:
  Check whether IMS is registered over Wi-Fi.

Proposed design:
1. E911 call uses IMS PDN for E911 call over VoWiFi:
  check whether IMS is registered over Wi-Fi, or,
2. Otherwise, check the following:
  - Carrier supports VoWiFi emergency calls
  - Wi-Fi AP is connected
  - Wi-Fi Calling is activated (optional)
  - Wi-Fi Calling setting is enabled (optional)

Bug: 265391206
Test: atest EmergencyCallDomainSelectorTest
Change-Id: Ia4d30f503e4e260598ba1e88cd1a97e8c117f8c2