26 Mar
2014
26 Mar
'14
9:44 a.m.
Thanks for your quick reply. So, Kamailio does nothing with RTP/RTCP
packets? I think I understand (now when I think about it) - Kamailio only
handles SIP messages by which in nested SDP two endpoints negotiate the
stream where media will go through? So RTP/RTCP media stream flow directly
between two UA endpoints and Kamailio has nothing to do with handling of
these packets. Could you, please confirm my thoughts?
All right but what if for example we have special UA that sends to Kamailio
specially modified packet (non standard SIP). In my extension of topoh
module I have sanity_checks disabled so will Kamailio check this packet
before my module and drops it or I can receive, modify and forward this
packet? I mean modify this packet to standard SIP packet and forward it to
another UA. I am just asking theoretically because in the moment I cant try
this.
On Wed, Mar 26, 2014 at 7:41 AM, Olle E. Johansson <oej(a)edvina.net> wrote:
On 26 Mar 2014, at 01:06, Cock Ootec <cockootec(a)gmail.com> wrote:
Hi,
I'd like to develop module for Kamailio which will be working with
RTP/RTCP packets. Is there any way to capture and edit RTP packet in module
of Kamailio for example in module extended from *topoh*?
Kamailio in itself is a SIP server, often acting as a SIP proxy. The SIP
protocol doesn't handle media, it facilitates setup and management of a
media session. Adding a module for handling media in Kamailio doesn't
really make any sense.
We do have modules that talk to external media servers. Look into those -
like rtpproxy. The Kamailio module itself does not handle media, but
communicates with the other server that in fact manages media relaying.
Before you modify software, you need to understand the architecture :-)
/O
In topoh there are two events SREV_NET_DATA_IN and SREV_NET_DATA_OUT but
I didn't be able to capture any RTP packets by them.
Thanks in advance for any help or useful information.
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