AT&T finally testing cross-VoLTE between US carriers

VoLTE is such a great way to hear callers with crystal-clear quality. While this feature is such a great advancement in the telecommunications industry, the problem with it is that they haven’t enabled this feature for calls made between callers of different service providers.
As of right now, if an AT&T caller dials a Verizon subscriber, both the recipient and the caller will only be hearing each other in standard audio quality. The only way for callers to take advantage of higher quality VoLTE is if the recipient happens to also be on the same cellular network as the caller.
Well, also as of now, AT&T has announced that in very few markets, they have already begun testing VoLTE calls between AT&T and other carriers. It isn’t explicitly mentioned which carriers they are testing, but there has been a previous mention of Verizon being such carrier.
AT&T also mentions that it is also working with “other” carriers to bring the same cross-compatibility for VoLTE, acknowledging the previous announcements with Verizon in mind.
The purpose of AT&Ts post was to announce the company’s milestone of 27 million VoLTE subscribers in the US with reach to over 295 million Americans.
Source | Via

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