I am having a similar issue. Asterisk does not show ringback tone and I investigated this due to it not reading sip invite 180. (or supposedly not receiving it).. My solution is that now I am using h323
(ver 1.4.19) CS From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Yehavi Bourvine Sent: Sunday, April 19, 2009 4:22 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] issue with sip 180 responses Maybe it is buffering issues with the kernel? Does it happen only when there is a peak in the new calls rate? Do all 180 messages get dropped? __Yehavi: 2009/4/19 Nir Levi n...@bezeqint.co.il Hello, SIP invites are accepted from imitator , but 'SIP 180' is not responded back to imitator. By inspecting the issue , we can *see* the response is generated and sent from asterisk (via asterisk logger ("sip debug" )) , but while sniffing the interface with tcpdump, we can't see 180 response on the interface. We don't have errors on the interface, firewall is disabled , seems there's no packet lost (checked with ping with low interval ) , and routes are ok . By our tests we can see there is a direct connection between the mass of the calls, and between the lost of sip 180 responses. We're using Asterisk 1.4.4, with real-time configuration, also we made few *modifications* in asterisk source code (changed app_dial.c, /app_macro.c, /func_cdr.c). We're not sure if the problem on the OS Level (Centos 5.2) or in the asterisk application. Please assist. ~Nir _____ This message was enriched by Impactia Technologies Ltd. www.impactia.com <http://www.impactia.com/> Please do not enrich <http://impactia.bezeqint.co.il/exclude.asp?email=asterisk-us...@lists.digiu m.com&domain=bezeqint.co.il&id=777> emails sent to me. _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com <http://www.api-digital.com/> -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
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