Dude, we did training for this. I know I'm right. VoLTE will only work on the Verizon network between two VoLTE phones, regardless of what you say or think. It's the way it is now because it's in testing phases right now. Not everyone can do it, and for good reason. You don't understand that we have a CDMA network, apparently. With LTE in most places as well as 3G, which is CDMA on our network, there will be dropped calls if someone leaves LTE on a VoLTE enabled phone. Because of that and the testing of it to make it more reliable for the broader base of customers, per our training it will only work between two VoLTE phones that know that call quality may actually be less than normal. I'm out of here. Too much ignorance.
The ignorance is all on your end. You can make a VoLTE call to anyone. Literally anyone. What you don't get is the shared HD Voice audio codec, which in Verizon's case is only deployed on LTE. HD Voice has been in use since 2006 - before VoLTE was even in existence. On T-Mobile, you can call anyone else on T-Mobile and get HD Voice. They don't need to be on VoLTE. T-Mobile launched HD Voice on January 8, 2013 over UMTS - the first in the US. They did not launch VoLTE until May 22, 2014. In fact, T-Mobile uses the maximum bitrate for HD Voice - 23.85 Kbps. On UMTS it uses the anchor rate of 12.65 kbps. Verizon's VoLTE uses 12.65 Kbps. So... Not only does T-Mobile use HD Voice on 3G, it's the exact same quality as what Verizon uses on 4G. VoLTE is not HD Voice. HD Voice is only a codec. And VoLTE calls work to everyone.
Further. Calls drop if you lose LTE on Verizon and Verizon only. They chose not to deploy 1x Advanced to enable SRVCC - this is not necessarily a negative, they chose instead to aggressively, and impressively, roll out LTE nationwide so it wouldn't be needed. But on the flip side, Sprint deployed it, with their CDMA network. Sprint has HD Voice on CDMA. Sprint will have VoLTE calls that hand off back to 1x. T-Mo will hand off back to UMTS or GSM. And AT&T will also hand off back to UMTS or GSM.
And by the way, I haven't changed anything I said. At all. I added to it to try and educate you, but it clearly sailed straight over your head.
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