I'm using Zoiper ( 1.35 ) on a Samsung Galaxy S6 (Android 6.0.1 ) with a Sipgate basic account and it used to work great, but now its stopped ringing on incoming calls.
When I log into my account online the dashboard shows my phone as online.
On my phone Zoiper says its connected and I can perform the tests suggested e.g dial 50000
In Zoiper I have a ringtone set.
When someone calls they just hear silence until the voicemail message kicks in (20 seconds)
Zoiper dosn't ring or show any missed call etc.
Any ideas ?