Incoming calls reported via reportNewIncomingCall on a CXProvider are correctly presented on the iPhone via CallKit, but are never relayed to the paired Apple Watch. Native cellular calls relay to the Watch correctly on the same devices.
What does a VoIP app's CXProvider need to satisfy for callservicesd to consider it eligible for phone continuity relay to paired Apple Watch?
What does a VoIP app's CXProvider need to satisfy for callservicesd to consider it eligible for phone continuity relay to paired Apple Watch?
Unfortunately, this is not something watchOS has ever supported. Our recommended approach today is to implement a standalone watchOS app which would then operate as a "peer" client the same way you'd support a user with multiple iOS devices. However, if you'd specifically like CallKit to support watchOS call control, then please file an enhancement request asking for it.
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Kevin Elliott
DTS Engineer, CoreOS/Hardware
