I have a Google Pixel II phone which uses wifi for voice calling. It works very well everywhere except at my house. I connect to a call with wifi via my home xfinity service. I hear the caller I am speaking to on my phone well. But shortly after the call begins, the person I am talking to says my voice breaks up and they cannot understand me.
I just upgraded my Xfinity modem/wifi router service with the faster system provided by Xfinity and new xfinity equipment. The problem remains exactly the same with the new and previous equiptment.
Looking for ideas for a solution?
If it is not a phone approved or sold by XM then all bets are off as to what will work . PS.. I need to read closer, this post was about Xfinity and not XM on the XM forum.
root-causes which seem consistent with the issue include older/buggy codecs and or buggy phone app software. it is pretty hard to make codec use two different voice channels without glitching. possible ways to workaround/avoid the issue: 1. go airplane mode, enable wifi, make the call. 2. turn off wifi, make the call. 3. disable wifi-calling entirely. btw, have you enabled VOLTE or "hd calling"? "HD" audio or "VoLTE" is outstanding end-to-end, arguably better audio quality than wifi-calling and likely with lower latency too.