[SR-Users] change ptime / RTP packet size

Carsten Bock lists at bock.info
Fri Jul 2 10:22:41 CEST 2010


In order to change the attribute in the SDP, you need manually to alter the
SDP (at least for 1.5.x). Tha NAT-Helper module will not do this for you.
Please see the Textops-Module on how to do this.

Carsten

2010/7/2 Laurent Schweizer <laurent.schweizer at peoplefone.com>

>  hello,
>
>
>
> I use  kamailio 1.5.4  with rtpproxy 1.2.1
>
>
>
> I try to change the ptime (RTP packet size) with the Nathelper module .
>
>
>
> to do it I call the function rtpproxy_offer with the option "z20"  but the
> "a=ptime:30" in SDP is not changed
>
>
>
> any idea ?
>
>
>
> Regards
>
>
>
> Laurent
>
>
>
> Log of RTPproxy:
>
>
>
>
>
> Jul  2 09:40:49 dns2 rtpproxy[19050]: DBUG:handle_command: received command
> "19072_4 UZ20c0,8,101 2ab4d3ad6ff9676a 217.162.26.26 3000 112a4c5d45;1"
>
> Jul  2 09:40:49 dns2 rtpproxy[19050]: INFO:handle_command: new session
> 2ab4d3ad6ff9676a, tag 112a4c5d45;1 requested, type strong
>
> Jul  2 09:40:49 dns2 rtpproxy[19050]: INFO:handle_command: new session on a
> port 54858 created, tag 112a4c5d45;1
>
> Jul  2 09:40:49 dns2 rtpproxy[19050]: INFO:handle_command: pre-filling
> caller's address with 217.162.26.26:3000
>
> Jul  2 09:40:49 dns2 rtpproxy[19050]: INFO:handle_command: RTP packets from
> caller will be resized to 20 milliseconds
>
> Jul  2 09:40:49 dns2 rtpproxy[19050]: DBUG:doreply: sending reply "19072_4
> 54858 15.43.10.128 "
>
> Jul  2 09:41:51 dns2 rtpproxy[19050]: INFO:process_rtp: session timeout
>
> Jul  2 09:41:51 dns2 rtpproxy[19050]: INFO:remove_session: RTP stats: 0 in
> from callee, 0 in from caller, 0 relayed, 0 dropped
>
> Jul  2 09:41:51 dns2 rtpproxy[19050]: INFO:remove_session: RTCP stats: 0 in
> from callee, 0 in from caller, 0 relayed, 0 dropped
>
> Jul  2 09:41:51 dns2 rtpproxy[19050]: INFO:remove_session: session on ports
> 54858/0 is cleaned up
>
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>


-- 
Carsten Bock
Schomburgstr. 80
22767 Hamburg
Germany

Mobile +49 179 2021244
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