My Zoiper account won't register on a cellular network, why is this?

+2 votes

When connected to a WiFi network everything works as required but when i leave the office and i'm on the road on my 3G/4G cellular network the app won't register so i can't make or receive calls. 

I have contacted my cellular provider and they tell me they are not blocking VoIP calls, is there some settings on my mobile that i need to adjust?

asked Feb 15, 2018 in Android by vcroke (140 points)  

2 Answers

0 votes


I'm fighting the same problems, where are you from?

answered Feb 27, 2018 by stevenrey (150 points)  
0 votes

Is your PBX being hosted at home and do you have a firewall there?
Make sure data saver is off and you allow background data

Try TCP as well
answered Feb 27, 2018 by expresspotato (230 points)  
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