WiFi Calling

[Foddersin]

Hi,

Thought I would try posting here for some advice.

I have an Xperia Z5 with WiFi Calling enabled.

When I am connected to WiFi I am not receiving incoming calls 9 times out of 10. It would just say the phone is unavailable try later etc.

I have tried this when connected to Sky, TalkTalk and Virgin Media.

I seem to only be receiving inbound WiFi calls from the Three network, calls from other's like 02 and BT landline mostly fail to come through or if they do force the WiFi calling to drop and connect through the mobile network.

I am not sure what the problem is, but surely this isn't dependant on the calling network as WiFi calling is purely on the receiving end?

Any help is appreciated.

[Uliwooly]

Are you on Sony's firmware or a custom ROM ?

http://talk.sonymobile.com/t5/General-Discussion/Wi-Fi-Calling/m-p/1137411

[Foddersin]

Hi.

I am running stock EE firmware, that link was a question I asked when I was interested in trying to enable it in a custom firmware.

[Uliwooly]

Are the missed calls when the phone has been idle for more than 5 minutes?

[Foddersin]

Sorry for the delay in responding.

There does not seem to be an issue if the phone is idle.

For example if I reboot the phone and it connects to WiFi calling straight away if I call from any line no from the Three network the call will not connect or connect bit not through WiFi calling.