Hi all,<br><br>We&#39;re seeing a strange reply from OpenSIPS when Asterisk sends it a BYE - &quot;481 bad request, no route tag&quot;. Does anyone know why this message might be returned? Thanks in advance.<br><br clear="all">

<br>U 2011/07/05 20:38:32.406967 &lt;asterisk ip&gt;:5060 -&gt; &lt;opensips ip&gt;:5060<br>BYE sip:&lt;calling number&gt;@&lt;opensips ip&gt;:5060 SIP/2.0.<br>Record-Route: &lt;sip:&lt;asterisk ip&gt;;lr=on;ftag=as0e8489a0&gt;.<br>

Via: SIP/2.0/UDP &lt;asterisk ip&gt;;branch=z9hG4bK75db.9be45641.0.<br>Via: SIP/2.0/UDP 216.139.220.96:5060;received=216.139.220.96;branch=z9hG4bK52a32816;rport=5060.<br>Route: &lt;sip:&lt;asterisk ip&gt;;lr=on;ftag=sansay303254289rdb21376&gt;,&lt;sip:sansay303254289rdb21376@&lt;opensips ip&gt;:5060;lr;transport=udp&gt;.<br>

Max-Forwards: 69.<br>From: &lt;sip:&lt;called number&gt;@&lt;asterisk ip&gt;&gt;;tag=as0e8489a0.<br>To: &lt;sip:&lt;calling number&gt;@&lt;opensips ip&gt;&gt;;tag=sansay303254289rdb21376.<br>Call-ID: 109061978-0-425332974@&lt;did provider ip&gt;.<br>

CSeq: 102 BYE.<br>User-Agent: Product.<br>X-Asterisk-HangupCause: Normal Clearing.<br>X-Asterisk-HangupCauseCode: 16.<br>Content-Length: 0.<br>X-Product-RURI: sip:&lt;calling number&gt;@&lt;opensips ip&gt;:5060.<br>X-Product-Source: <a href="http://216.139.220.96:5060">216.139.220.96:5060</a>.<br>

.<br><br><br>U 2011/07/05 20:38:32.478093 &lt;opensips ip&gt;:5060 -&gt; &lt;asterisk ip&gt;:5060<br>SIP/2.0 481 bad request, no route tag.<br>Via: SIP/2.0/UDP &lt;asterisk ip&gt;;branch=z9hG4bK75db.9be45641.0.<br>Via: SIP/2.0/UDP 216.139.220.96:5060;received=216.139.220.96;branch=z9hG4bK52a32816;rport=5060.<br>

To: &lt;sip:&lt;calling number&gt;@&lt;opensips ip&gt;&gt;;tag=sansay303254289rdb21376.<br>From: &lt;sip:&lt;called number&gt;@&lt;asterisk ip&gt;&gt;;tag=as0e8489a0.<br>Call-ID: 109061978-0-425332974@&lt;did provider ip&gt;.<br>

CSeq: 102 BYE.<br>Content-Length: 0.<br>.<br><br><br>-- <br>David Cunningham, Voisonics<br><a href="http://voisonics.com/" target="_blank">http://voisonics.com/</a><br>US toll-free: +1 888 842 2720<br>UK: +44 (0) 20 3298 1642<br>

Australia: +61 (0) 2 8063 9019<br><br>