Need some help here.
I am curring using Obi100 for
voip.ms (US /Canada ) call, also use SP2 for calling China number( using a chinese SIP provider). The reason I do this is because
voip.ms sound quality is pretty bad and take very long to connect for calls to China.
When I call regular call to china, for example shanghai , I would dial **202012345678
**2 is switching to sp2, 020 is area code, 12345678 is the number to call.
However when I call free Chinese 400 number, for example **24001122800, my OBi100 would automatically add 1 , and it becomes **214001122800, which will make that Chinese SIP provider reject the call