[4.2.0.19][4.1.0.24][Xperia 10II] losing cellular network after call

[silta]

@flypig

Currently, without VoLTE support, and without a 3G network to fall back on, your phone will drop back to 2G during a call, meaning there’s no data connection. This is all correct behaviour. After the call it should then return to 4G with a data connection.

I’m aware of that.

@flypig

Is the Xperia X nevertheless dropping to 2G and then returning back to 4G quickly? In the case of your Xperia 10 II, if I understand correctly you see the same behaviour except that it takes considerably longer to return to 4G (could you clarify how long in both cases please?).

Yes, the Xperia X turns back to 4G immediately.
The X 10 II needs mostly 20 - 60 seconds. During this time there is no cellular network available.