Redmi S2 with MIUI 12.0.2|
Two SIP accounts properly set, registering with respective sip servers and "Receiving calls".
No problem with making calls. I can make them and all works as expected.
But calls received do not ring and do not show any notification. If it happens, by chance, that I lit the screen, it rings and the screen to accept or reject the call appears. Otherwise it is the total silence. It seems the app is unabled to wake up the device if it is "sleeping" with the screen off.
I know the the call is received because it appears in call log as "not answered" and "as ring n times", but it desn't ring at all. I have lost lots of calls because as this behaviour. On the other hand, calls received by mobile network (SIM accounts) work well, as expected.
What can I do? What SIP call settings am I missing? Is this a bug without a solution?
Please help. Any tips are wellcome.
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