I‘m using Zoiper 3.13, Library v2.8.30, iPhone 7, ios 10.2.1 and I have following trouble:
I set up my SIP provider (Easybell.de) with QR code and it works wonderful for a few calls. After several incoming (3-5) calls it doesn’t work anymore, there is absolutely no audio. No data being sent in packets when I check stats.
If I terminate app and start it again it works again. There is no difference if I use it over Wifi or 3/4G.
I also tried instructions from http://www.zoiper.com/en/support/answer/for/ios/19/SIP_-_No_audio_or_one_way_audio, but it didn’t work.
Could you help me please?