Hi<br><br>I registered my asterisk box to my SIP provider as an UA. For every call I receive on this trunk, I get the message "That is not a valid conference number". I'm using Asterisk version 1.4.22, I had install the dahdi-linux and dahdi-tools and the conference is working between the phones registered to Asterisk PBX.<br>
What's wrong?<br>Thanks.<br><br>Szasz Szabolcs<br>