assign a port for RTCP relay

STeven · Brekeke Junior Member Joined: 06 Oct 2009 Posts: 5

1. Brekeke Product Name and version:
Brekeke SIP Server 2.3.7.4
2. Java version:
1.6.0_15
3. OS type and the version:
Linux 2.6
4. UA (phone), gateway or other hardware/software involved:
PJSIP
5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/networkpatterns.html :
Pattern
6. Your problem:
Sometimes my router will use different RTCP for Brekeke.
e.g. RTP port: 10000
RTCP port: 10002 (is not RTP+1)
Then the Brekeke RTP always relay to 10001.
I can put the real RTCP port in SDP. So, I can tell Brekeke SIP Server.
Can I assign the RTCP port in the dailplan or using the other way?

lakeview · Posted: Tue Oct 06, 2009 5:48 pm Post subject:

STeven,

How do you specify RTCP port number in SDP?
Can you paste a SDP here?

STeven · Brekeke Junior Member Joined: 06 Oct 2009 Posts: 5

lakeview · Posted: Thu Oct 08, 2009 7:37 pm Post subject:

Yeah.. It seems a bug.

Can you tune RTCP port at your side?

lakeview · Posted: Thu Oct 08, 2009 7:39 pm Post subject:

or..
disable RTP-relay at SIP Server if it is not NAT environment.

STeven · Brekeke Junior Member Joined: 06 Oct 2009 Posts: 5

Thanks! But I can't control the NAT mapping and disable the RTP relay...the RTP relay is so important for VoIP...

I want to suggest some customers to use Brekeke SIP Server.
But we don't know their router's action. I think it's hard to control
the NAT mapping.

Hope someone can help the issue...

Harold · Posted: Sun Oct 11, 2009 9:38 pm Post subject:

who specify "a=rtcp" in SDP?
Is it PJSIP? Is it your router?

STeven · Brekeke Junior Member Joined: 06 Oct 2009 Posts: 5

PJSIP is a sip stack.

Please see http://www.pjsip.org/