The Huawei Mate 10 Pro was recently announced for the US market at CES. However, it wasn't the news that we were expecting as AT&T, the carrier that was supposed to launch the phone in the US, dropped out of the deal. Senior XDA-Developers member duraaraa confirms that the Huawei Mate 10 Pro (and Porsche Design Mate 10 Pro) specific to the United States will support VoLTE on T-Mobile and AT&T, both major GSM carriers in the States. The models coming to the US have a model number of BLA-A09, which matched the unreleased AT&T firmware for the Mate 10 Pro. This suggests that the incoming...
Source: https://www.gsmarena.com/usbound_huawei_mate_10_pro_will_support_volte_on_tmobile_and_at_t-news-29309.php
