On Fri, 23 Apr 2010 23:11:06 +0200, ad...@3a.hu wrote: >Hi Guys, > >On 04-23-2010 21:40, Nathan Clemons wrote: >> SIP is just the control protocol, and can be negotiated over TCP or UDP. The >> actual payload is done over RTP, which is a UDP-based protocol. >> > >thanks, for both of you for pointing this out. i was obviously on the >wrong track here. since i see the rtp traffic via tcpdump, i'm going to >ask the other gw's sysadmin to see into this, maybe there is some >logging on the other side. > >> If you had to add firewall exceptions/PAT config for the TCP SIP traffic, >> you'll also need to add the same for RTP traffic as well. >> > >this is a private pilot network for testing purposes, no internet >connection, no nat, no firewall. it's like the 90s :)
Actually, it is more common for RTP to be over UDP, but RTP over TCP is possible. In fact, this is the default RTP mode for M$ Office Communications Server. I beleive that it may be possible to use RTP over TCP in Asterisk as there was someone work on this inorder to have interop with M$. Michael -- Michael Graves mgraves<at>mstvp.com http://www.mgraves.org o713-861-4005 c713-201-1262 sip:mgra...@mstvp.onsip.com skype mjgraves Twitter mjgraves -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users