Well there are several problems in your description of Satellite services. For one you are grouping several differing technilogies together as one. What it seemed like you were testing was a shared bandwidth solution typically used by providers to reduce cost. It isn't uncommon to experience sever delays and packet loss on these types of systems. Alot of these shared providers "claim" 64k cir then oversubscribe over that. Lies, yes, theift yes, and they get away with it... What you would want to ask for is a SCPC (Single Carrier Per Channel) circuit and you should have much better results, cost? a lot more than these shared solutions. You may want to look into the maritime providers/teleports in the area for this type of service. Delay for a decent circuit should not be over 600 ms and it should be steady. Proof is in the pudding, in a SCPC circuit with a v.35 interface you can run an extended BERT test on it without error. and that's Sync data...
I speak confidently on this as we are a provider of VSAT services in the oilfield industry. We are bombarded with these "low cost" competition and have to defend ourselves daily. Alot of providers sell crap at a decent price. We don't and won't. It hurts our market penetration but we tend to keep customers for a good long time. I can answer a lot of questions on this subject if anyone needs. It's a lot like point to point microwave, they experienced their "bandwidth sharing" days and they quickly died on the vine. The driving force behind shared solutions is that satellite bandwidth is expensive. Chad C. Wicker Systems Engineer Petrocom >>> [EMAIL PROTECTED] 5/11/2005 1:06:52 PM >>> We looked at this earlier this year and, after evaluating several companies, could not get it to work well enough. The problem didn't seem to be latency, but rather lost packets in the upstream direction. Most of the time, we couldn't even get the phone to register, but even when we could, there was such a large amount of breakup (in the up direction) that it was nearly unusable. We tried low-end, consumer type services and they didn't work at all. Even the high-end services that claim to offer guaranteed bandwidth apparently do not live up to their claims. We tried running G.729, which should only need about 32-40k over a link that claimed to guarantee 64k, and the best we got was broken sound. Bruce Komito High Sierra Networks, Inc. www.servers-r-us.com (775) 236-5815 On Wed, 11 May 2005, Yiannis Costopoulos wrote: > Hi All, > > I am investigating the deployment of VoIP/* in Eastern European areas where > there is no PSTN infrastructure. As you can understand DSL/Cable connections > are a dream. The only option is satellite. > > Does anyone know of any satellite providers that have low enough/acceptable > delays for VoIP? > > Thanks, > Yiannis. > > _______________________________________________ > Asterisk-Users mailing list > [email protected] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > This message has been categorized as "Legitimate" by Bayesian Analyzer. > If you do not agree, please click on the link below to train the Analyzer. > http://nospam.wpti.net/bt/a.aspx?M=C:%5Csmtpmail%5CBayesTraining%5C2005-05-11%5Cc819e577de1140fbaa62d0a53c83de86&C=2 > > -- > ----------------------------------------------------------------------- > This message has been inspected by DynaComm i:mail > ----------------------------------------------------------------------- > > _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
