HD Voice calls problem

Cessio(Hungary) Post time 2019-10-21 14:57:46 | Show all posts [Copy link]
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HD Voice calls problem

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Post time 2017-3-19 18:22:31 | Show all posts |Read mode
Hi! My problem is, that since last update, when i use 4G connection (4G is the preferred network), and I start a call, the network drops to EDGE instead of 3G. On 3G I could make HD Voice calls, but now I can't. My SIM is from T-mobile Hungary. I already made a factory reset, but the problem remained the same. The HD Voice works on other devices, with the same settings, with the same SIM. What should I do? Is this a softwer issue?

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Post time 2019-10-21 14:57:46 | Show all posts
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