Hello, do you have any experience with using Zoiper on mobile roaming? I am using it in my mobile phone (SIP) and everything works perfect with wifi and mobile data at home.
When I am travelling and using mobile data in roaming I am not able to register and always received enclosed messages.
Registration failed Request timeout 408
Registering (No DNS result 923)
I have the same experience with my mobile operator when I am using SIM card from abroad and register to his network in roaming. With my own SIM card it works without problem.
Can you help me?
thank you for reply