IAX2 registering problems

Joined: Mon 11 of Apr, 2011

IAX2 registering problems

Posted:Mon 11 of Apr, 2011 (13:05 UTC)
I am trying to develop an IAX sophone for Android. By now I am doing some tests using libraries with java implementations of the iax2 protocol.
The thing is that when I try to register an IAX2 extension with my pbx Asterisk (elastix) I get no success.
I've tried differents softphones and the only one who can register is Zoiper, with others (voixphone, yate, ...) I always get an REGREJ from the server (the same answer that I get with the java libraries).

Does anyone Know why I only can register with Zoiper? how can resolve this problem?

Thanks a lot!