Callee SDP response

Dear All,

I have already setup Asterisk 1.6.12. And using SIPCon1 for UA for implementing ToIP.

But in my callee softphone i got the message (No m=text found in SDP ).

Any body knows whats wrong with my Asterisk or there is missing configuration in sip.conf or extensions.conf ?

Any answer would be appreciate. Thanxs

Best regards,