20 dec 2011 kl. 22:40 skrev Gautam Batra:
Hi,
Thanks for your replies. Is it possible to play an audio file in the case of a re-invite
directly from kamailio instead of freeswitch by using rtpproxy_stream2uac() or something
similar?
Kamailioi is still a proxy and from the endpoint point of view is not involved in the
media plane. If you managed to do that many
endpoints would ignore the packets or see them as a DOS attack attempt. Other endpoints
might just play them.
In later releases of Asterisk, we lock to the IP address of the peer and would ignore
these. Asterisk used to send music-on-hold
like this before, but we considered it a security issue and started reinviting to make
Asterisk involved in the call again to play
music on hold. Asterisk can do that, because it's a b2bua and is an endpoint in the
call. Kamailio can't initiate a reinvite in the
call.
/O
Gautam
On Mon, Dec 12, 2011 at 4:50 AM, Olle E. Johansson <oej(a)edvina.net> wrote:
12 dec 2011 kl. 10:45 skrev Daniel-Constantin Mierla:
Hello,
On 12/9/11 9:04 PM, Gautam Batra wrote:
Hello,
I have a kamailio sip proxy server with freeswitch acting as SBC. I want to redirect the
call to freeswitch when hold is pressed so that i can play music on hold. I tried this by
using rewritehostport in case of a re-invite, but the call drops in that case. Could
someone please help me with this?
it is not possible to redirect established calls
(it breaks the RFC3261), you have to route the call through freeswitch from its start.
Perhaps you can use freeswitch without relaying the media in first place and when you have
on hold, you set media patch to go through freeswitch.
The only solution is having
FreeSwitch send an invite with replaces to grab the call. The question is how to get it
back.
/O
---
* Olle E Johansson - oej(a)edvina.net
* Cell phone +46 70 593 68 51, Office +46 8 96 40 20, Sweden