<br><ol><li>Are Asterisk and Mittel in the same physical LAN.. or do they have a router between them?</li><li>Do a 'rtp debug' at the Asterisk CLI to see where is the RTP data being sent to</li><li>Probable issues:-</li>
<ol><li>canreinvite is enabled when it should not be</li><li>Mitel is sending SDP with an incorrect RTP IP and/or port... You'll need to check 'sip debug' to see what RTP port is being sent</li></ol><li>From the 1/2 second audio, it seems that it could be due to one of these:-</li>
<ol><li>1/2 second is early media, and is being handled correctly at both Mitel and Asterisk. OR,</li><li>After 1/2 second, Asterisk and Mitel renogotiate for RTP payload type, and switch to a codec that is broken at either or both the locations</li>
<li>After 1/2 second, Asterisk and Mitel renogotiate for RTP IP/port<br></li></ol></ol>
<br>In case you are unable to debug with the above help, post these:-<br><ol><li>IPs of both Mitel and Asterisk<br></li><li>SIP dialog as text (sip debug output should do)</li><li>A few lines of RTP debug output</li></ol>
-- <br>Regards,<br>Prince Singh<br><br>Drishti-Soft Solutions Pvt Ltd<br><br><br><br><br><div class="gmail_quote">On Wed, Apr 14, 2010 at 3:56 AM, Thermal Wetland <span dir="ltr"><<a href="mailto:thermalwetland@gmail.com">thermalwetland@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I have an Asterisk box, 1.4.30 with a PRI.<br><br>A Mitel 3300 is connected to the Asterisk box via SIP trunking.<br>
<br>When a user calls from the Mitel through the Asterisk box the user can speak but can not hear the far end.<br>
<br>But - when I route the Mitel user to echo() it works, send and receive. The Mitel user also can record and playback greetings.<br><br>One thing I have noticed is that when the Mitel user dials a number that autoanswers line 1-800-555-1212 the Mitel user will hear audio for 1/2 a second then it is dropped.<br>
<br>I turned of iptables and it acts the same way.<br><br>Anyone have any ideas?<br clear="all"><br>-- <br><font color="#888888">-Thermal<br>
</font><br>--<br>
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