Hi, BTW: we are working on a Voice solution for LLuna also based on RTP/UDP. There will be a TCP backup in case UDP is blocked.
hw -- Dr. Klaus H. Wolf bluehands GmbH & Co.mmunication KG http://www.bluehands.de/people/hw +49 (0721) 16108 75 -- Jabber enabled Virtual Presence on the Web: http://www.lluna.de/ Open Source Future History: http://www.galactic-developments.com/ >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf >Of Ulrich Staudinger >Sent: Thursday, April 21, 2005 11:11 AM >To: Jabber software development list >Subject: Re: [jdev] Re: Question about Proxy65 support Voice Chat > > > > >Richard Dobson schrieb: > >>> Voice and audio is not like that. You will need to transfer >it reliably. >>> >>> TCP is what SIP/SDP has selected (there's another protocol >at that layer >>> too that's been drafted for use). Their model of getting >around NATs and >>> firewalls is also a lot like proxy65 in that a third party >server is >>> used. >> >> >> Are you sure? I thought they used RTP, and I was under the >impression >> RTP uses UDP not TCP, as TCP is not appropriate for real time data >> (audio) due to various reasons that are outlined in the information >> about RTP. >> >> Richard >> >> >Richard's right. UDP is used for transmission of RTP data. The frame >size for audio and video packets is about 20-100ms, so >dropouts are not >a serious threat to communication security. > >Regards, >Ulrich > > >_______________________________________________ >jdev mailing list >[email protected] >http://mail.jabber.org/mailman/listinfo/jdev >
_______________________________________________ jdev mailing list [email protected] http://mail.jabber.org/mailman/listinfo/jdev
