Voip over satellite can be done if enough bandwidth is reserved properly for it. Use the g729 codec and ask for 24 kilobits of upstream cir and you should be fine. Also you'll want to mark your packets with the EF tos bit in sip.conf. If done right the delay isn't too bad. Yes you can tell it is there, but as long as your latency doesn't fluctuate too much you should be alright.
>From my experience as far as satellite platforms are concerned go with Idirect when possible. I've also used the Viasat systems as well and from all the installs I've seen the hub operators never really understood how to run the hub to optimize for voip so I've pretty much given up on that platform. It seems that Idirect operators are the only ones who know how to make the system work well. If you want the best of the best nothing touches C-band though. Yes its low bandwidth, but C-band you can bet your life on... Most low end sat services are way over subscribed to start with and when you add voip in to the mix voip is the first thing to lose. Tom -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Eric Fort Sent: Friday, May 08, 2009 11:30 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [asterisk-users] VoIP over satellite internet Could those on the list who have used or tried to use VoIP over a satellite internet connection comment on how well it works or if it even works at all in a reliable way. What is the effect of latency on the VoIP path and how much is generally tolerable? routing via satellite adds about a quarter second of latency to the path. Is that too much? Eric _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
