Hi, that was the asterisk debug and the Huawei returns the same errors. The Huawei debug doesnt say too much, just the answer with the same errors. As you can see there the INVITE - ACK negotiation between asterisk and Huawei is there until the call is established. The errors must be in the asterisk side somewhere. Additionally this is my sip.conf.<br><br>[general]<br>bindport=5060 ; UDP Port to bind to (SIP standard port is 5060)<br>bindaddr = 0.0.0.0 ; Address to bind to<br>rtptimeout=120<br>disallow=all<br>allow=ulaw<br>allow=alaw<br>maxexpirey=500<br>defaultexpirey=500<br>rtptimeout=120<br>;insecure=very<br>canreinvite=no<br>context=default ; Default context for incoming
calls<br>language=en ; Default language setting for all users/peers<br>dtmfmode=rfc2833<br>;relaxdtmf=yes ; Relax dtmf handling<br>nat=no ; Global NAT settings (Affects all peers and
users)<br><br>register=>4875129:cvcol@10.220.0.2/1234<br><br>[epmbogota]<br>type=user<br>context=default<br>;username=4875129<br>;secret=cvcol<br>deny=0.0.0.0/0.0.0.0<br>permit=10.220.0.2/255.255.255.255<br>host=10.220.0.2<br>nat=no<br><br>[epmbogota]<br>type=peer<br>;register=yes<br>username=4875129<br>secret=cvcol<br>insecure=invite<br>host=10.220.0.2<br>;fromdomain=huawei.com<br>fromuser=4875129<br>context=default<br>;nat=yes<br>;trustrpid=yes<br><br>[1234]<br>type=friend<br>username=1234<br>;secret=1234<br>;insecure=invite<br>host=dynamic<br>context=outgoing<br>callerid=4875129<br>;callerid=6055001<br>qualify=no<br>dtmfmode=rfc2833<br>mailbox=4875129<br>nat=no<br><br>Im using G711 codec on both sides.<br>Thanks a lot for your help.<br><br><b><i>Ma Zhiyong <mazhiyong@sohu.com></i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> need debug * and Huawei, not * and
client</blockquote><br><p> 
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