I have an Asterisk server setup that is accepting both SIP and IAX2 (of which I have created accounts for each). I am able to call from one to the other internally so can call from my IAX2/warvox account to my SIP/bill account (and vice-versa) via softphones.
I have purchased an account with a VoIP provider that does not directly support IAX2, they support SIP (hence why I'm trying to set this up). I have configured Asterisk to work with this service and can also make external calls (to landlines) from either my IAX2 or SIP softphones.
When I plug the information into WarVox (1.2) running on BT5R1 x86, I am unable to successfully make a call (internal or external). Every attempt comes up as "Fail=1" and 0/1 answered.
Reviewing a successful call vs. WarVox call in wireshark, it appears that WarVox is being rejected by my Asterisk server.. I see it do a 'REGREQ' (assume that's a Registration Request) then a 'NEW' call but it receives a 'REGREJ' followed by a 'REJECT.' My guess is that the registration request is being rejected followed by the call attempt being rejected.