Hi,

You made the classic error due to not reading the documentation carefully - you need to call b2b_init_request on the initial Invite( and only on it). Do not call it on REFER.

Regards,

--
Anca Vamanu
www.voice-system.ro




On 07/28/2010 04:35 PM, Premalatha Kuppan wrote:
Hi,

Iam using Opensips as proxy and B2BUA. But B2BUA doesn't seems to work. Iam getting following error.

This is to Handle REFER request. From Asterisk Iam sending REFER request to Opensips. But getting following error.

any insight ?

1. From Asterisk:

REFER sip:4081112...@xxxx:5060 SIP/2.0
Via: SIP/2.0/UDP yyyyyy:5070;branch=z9hG4bK5a523824;rport
Route: <sip:yyyyy;lr=on>
From: <sip:7081110...@xxxxxxx>;tag=as6ed72d65
To: 4081112222 <sip:4081112...@yyyyyy>;tag=1549130118
Contact: <sip:ivr_pic...@yyyyyy:5070>
Call-ID: 0e1a436f-6a3a-7537-d2ff-b6d5fff56...@xxxxxxx
CSeq: 102 REFER
User-Agent: Asterisk PBX
Max-Forwards: 70
Refer-To: <sip:999_44_1...@xxxxxx:41452;transport=tcp>
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO
Supported: replaces
Referred-By: <sip:ivr_pic...@xxxxxx:5070>

2. Opensips.cfg

 if (method=="REFER")
         {
xlog("Call from Asterisk PROTOCOL=$pr PORT=$op PROTOCOL PORT=$oP RQT=$oU \n");
                b2b_init_request("refer");
        }

3. Opensips Log:

Jul 28 09:17:40 204548-4 /usr/local/sbin/opensips[6199]: ERROR:b2b_entities:b2b_new_dlg: no Content-Length header found! Jul 28 09:17:40 204548-4 /usr/local/sbin/opensips[6199]: ERROR:b2b_entities:server_new: failed to create new dialog structure entry Jul 28 09:17:40 204548-4 /usr/local/sbin/opensips[6199]: ERROR:b2b_logic:b2b_process_scenario_init: failed to create new b2b server instance Jul 28 09:17:41 204548-4 /usr/local/sbin/opensips[6199]: ERROR:b2b_entities:b2b_new_dlg: no Content-Length header found! Jul 28 09:17:41 204548-4 /usr/local/sbin/opensips[6199]: ERROR:b2b_entities:server_new: failed to create new dialog structure entry Jul 28 09:17:41 204548-4 /usr/local/sbin/opensips[6199]: ERROR:b2b_logic:b2b_process_scenario_init: failed to create new b2b server instance


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