Zoiper 3.14 on iOS 10.3.2
I try to get "sipgate.de Accout" work with your APP (free Version).
It works if iPhone is unlocked, but not it it is locked.
I enabled the following:
Settings -> incomming calls
wi-fi keep alive
close and restart the APP, but still the same problem.
Zoiper Version: 3.14 / LibVersion: 2.8.40
How can i fix this ?