On 2017-09-12 23:35, nospam wrote:
> <
https://www.t-mobile.com/offers/t-mobile-digits>
> <
https://www.att.com/shop/wireless/features/numbersync.html>
Thanks. But both of these appear to be using "data" to connect the
second phone/device so it can "fake" using the phone number of the main
phone. The AT&T even says HD Voice (their marketing namne for VoLTE).
Yet, the Apple Watch supports UMTS, which means it can do voice calls on
3G. (I assume faking callerID would be fairly easy so that the device
appears to be your main phone for those calls). But routing of incoming
calls to the real 3G number used by the watch requires fancy footwork by
the carriers (not a simple call forwarding since they probably still
have to ring both phone and watch that are on different network numbers).
I assume details will emerge.
In Canada, while both Bell and Telus were mentioned for launch, Telus
admitted it isn't ready and service will start later. Rogers has used a
bogus excuse to not admit it doesn't have the tech, and the other
carriers have been silent so far.
Interestingly, the Apple site in Canada mentions that a Bell canada
Apple Watch will not work in MTS and Sasktel territories where Bell does
network sharing. This provides hints that the call handling needs to
have support closer to the towers and are not just a data link back to
the home network's APN. (the AT&T and T-Mobile pages also have
limitations on roaming).