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Questions[rtp](server)

Martin Hope
Avani badheka
Asked: 2016-08-24 23:16:03 +0800 CST
  • 1

My retproxy is not listening on 7722 port .I have mentioned this in modparam("rtpproxy","rtpproxy_sock","udp:127.0.0.1:7722")

modparam("rtpproxy","rtpproxy_sock","unix:/var/run/rtpproxy/rtpproxy.sock")

also I have enable attributes on /etc/default/rtpproxy

Can anyone help ?

ubuntu rtp
Martin Hope
Greeg
Asked: 2016-04-22 01:33:55 +0800 CST
  • 3

I'm facing issue with a Asterisk-based ToIP infrastructure. Sometimes my phone received 'empty' RTP (payload entirely filled with 5d).

I browsed RFC (3551, 3389) and can't find/understand relevant answers.

I have found that two web pages that have the same issue as me:

https://www.wireshark.org/lists/ethereal-users/200402/msg00142.html

http://www.giacomovacca.com/2013/05/the-sound-of-silence-encoded-with-g711.html

So:

  • Is anybody know where is the official answer?
  • Who decided that filling 0x55 or 0xd5 will make no sound?
  • Also, who could explain to me why 0x55 or 0xd5 make 0?

Thanks!

rtp
Martin Hope
kyrisu
Asked: 2012-02-11 03:30:13 +0800 CST
  • 1

I have a strange issue while trying to capture RTP (UDP) traffic. I have a phone using IP 192.168.9.4 and a Windows 2003 PC connected to the same switch (actually to the monitor port of the switch - that's how I'm able to sniff the traffic).

When I run:

windump -i <interface_name> -tnnq

I can see all the RTP traffic of an open VOIP connection, but when I run:

windump -i <interface_name> -tnnq host 192.168.9.4

.. or even ..

windump -i <interface_name> -tnnq udp

I cannot see RTP traffic at all.

I'm using RTP in the description because I think I saw 1 UDP packet - ARP somewhere during my tests, so maybe not all UTP is affected.

I tried to connect my laptop to the monitoring port (Win7) and on both scenarios it worked OK (I was able to see RTP traffic from the phone).

Any ideas what can I check to find out what's wrong in the config of my Windows 2003 machine?

windows-server-2003 wireshark voip rtp winpcap
Martin Hope
Ryan
Asked: 2011-09-28 13:11:25 +0800 CST
  • 1

So we have the PBXNsip PBX server. We want to hear shoutcast for the Music On Hold (MOH). They do offer an RTP for the MOH, but the music we want to hear is Shoutcast, and mp3 format.

Is anyone experienced with using mplayer/ffmpeg/ffserver to play the shoutcast stream, and send it to ffserver on a specific port or something so the pbxnsip server can use that port for RTP streaming?

I am not even sure ffserver is what I need but it sounds like it.

ffmpeg rtp
Martin Hope
davr
Asked: 2010-05-22 14:28:36 +0800 CST
  • 1

Is there such a thing as a H.323 to RTSP gateway? Am I searching for the wrong terms? This site seems to imply that such a thing should already exists, but I cannot find anything at all. My end goal is to connect a Flash applet (via RTMP) on one end to a video conference (which uses H.323) on the other end. I have a RTMP<-->RTSP/RTP gateway, so a RTSP<-->H.323 gateway would allow this solution to work.

rtp rtsp rtmp video-conferencing