10 Feb
2011
10 Feb
'11
4:55 a.m.
Hi,
yeah, the script does call rtp_offer for 200 OK and rtp_answer for ACK.
So, no problem there.
Emil
Am Thu, 10 Feb 2011 09:46:04 +0100
schrieb Carsten Bock <lists(a)bock.info>fo>:
Hi,
just a hint: If you use rtpoffer/answer for SDP in 200ojk/ACK, the
SDP-Offer is in the 200 OK, so you need to call "rtp_offer" for the
200 OK instead of the usual "rtp_answer" for the 200 OK. The ACK/SDP
contains then the rtp_answer.
Works like a charm for me....
Carsten
2011/2/10 Emil Kroymann <emil.kroymann(a)isaco.de>de>:
--
Emil Kroymann
VoIP Services Engineer
Email: emil.kroymann(a)isaco.de
Tel: +49-30-203899885
Mobile: +49-176-38389303
ISACO GmbH
Kurfürstenstraße 79
10787 Berlin
Germany
Amtsgericht Charlottenburg, HRB 112464B
Geschäftsführer: Daniel Frommherz
When I checked the code of the nathelper module
that we are using,
it didn't seem to be the case, that to and from tags are switched
for the ACK request. Maybe, something has been changed after the
point we checked out sip-router. When was this code last changed?
Am Wed, 9 Feb 2011 12:51:29 -0500
schrieb Ovidiu Sas <osas(a)voipembedded.com>om>:
The code seems to be correct. The to and from
tags are switched
for:
- reply with offer (200ok with first SDP)
- request with answer (ACK with second SDP)
Are you sure that you are properly invoking offer/answer rtpproxy
functions?
Regards,
Ovidiu Sas
On Wed, Feb 9, 2011 at 11:48 AM, Emil Kroymann
<emil.kroymann(a)isaco.de> wrote:
--
Emil Kroymann
VoIP Services Engineer
Email: emil.kroymann(a)isaco.de
Tel: +49-30-203899885
Mobile: +49-176-38389303
ISACO GmbH
Kurfürstenstraße 79
10787 Berlin
Germany
Amtsgericht Charlottenburg, HRB 112464B
Geschäftsführer: Daniel Frommherz
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
list sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
Hi,
We recently had a problem with the nathelper module and rtpproxy
in a scenario where the SDP offer is sent only in the 200 OK. We
use sip-router 3.1 and rtp-proxy from git master. The sip-router
configuration uses the rtpproxy_offer() and rtpproxy_answer()
functions in appropriate places. The problem is, that the
arguments sent to the rtpproxy, when the ACK with the sdp answer
arrives, seems to be not in the order, that rtpproxy expects.
On the 200 OK, the nathelper module sends callid, to-tag,
from-tag to rtpproxy. On the ACK, the nathelper module sends
callid, from-tag, to-tag (with different command prefixes, of
course, but I cannot remember them atm). The version of rtpproxy
that we are using seems to expect, that the order of arguments
sent on the ACK request is the same as on the 200 OK.
My question: are there any module parameters, to correct this
behaviour?
Regards,
Emil
--
Emil Kroymann
VoIP Services Engineer
Email: emil.kroymann(a)isaco.de
Tel: +49-30-203899885
ISACO GmbH
Kurfürstenstraße 79
10787 Berlin
Germany
Amtsgericht Charlottenburg, HRB 112464B
Geschäftsführer: Daniel Frommherz
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
mailing list sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users