iOS 13+ terminates the app if a PushKit VoIP push doesn't call reportNewIncomingCall
before completion(). My earlier "no re-ring blip" change made the cancel handler SKIP
the report for already-known/ended calls — which is exactly what iOS kills the app
for, surfacing as a crash after several calls (a cancel push for a prior call's UUID).
Revert to ALWAYS report then immediately end: for a still-active/ringing UUID the
report errors harmlessly (no second ring) and reportCall ends it; only a late duplicate
cancel shows a brief, unavoidable blip. A crash is far worse than a blip.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Sravan
fafc480904