Re: [Voip.ms] No ringback heard on outgoing calls.
I have been having the same issue as well but it only happens when voipms has issues with one of their other proxies and registers those customers to the proxy im using. I notice that all of my devices will be registered to tampa, the one I always use, and then to the proxy voipms is having issues with. Once they fix the proxy issues and im only registered to one proxy, my problems go away. I opened a ticket about it but was told just to change my proxy which does not solve the problem IMO. This has happened to me 3 times in the matter of one month and Im considering porting the 10 numbers I have with them to another provider.