Getting T-Mobile 4G data to work with 3rd party VoIP required me to increase either the UDP timeout or the registration timeout, which only Zoiper and CSipSimple allowed changing. However, CSipSimple had a proximity sensor bug that Zoiper does not have, so Zoiper stays on my phone.
Great app 9nce it's set up Fantastic application for a soft phone but if your not 100% on the set up make sure you talk to your soft number provider to help you configure it correctly.
Very good app however some of the text is unreadable given that dark text is shown on a black background. I have gone through the advanced settings and couldn't find an option to change the colour theme. Please help.
Works as expected Voice quality is good. The program works as expected. My only remark is that every call (in/out) is in the phone call log, when I use it to make a call, the call log use the phone dialer (gsm) and not the Zoiper (that push the call to the log).
Calling The fact that I can call my family and friends abroad for such a small many in rather suitable quality is 50/50. Now I can chat for hours with no stress. Thanks Zoiper!!!
Works well Simple to setup yet powerful enough when things don't quite work... Voip isn't always straight forward......
revert old version to fix issue with ipv6 provider with ipv4 user on some devices.
Grandstream Networks announces Wave, a free VoIP app for SIP-based calling