I am operations vp for a wholesale VOIP network and we have customers
sending us VOIP over satellite that works quite well.    Several well
known carriers just do not work for VOIP in my experience.

[EMAIL PROTECTED]

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bruce
Komito
Sent: Wednesday, May 11, 2005 19:11
To: Chad Wicker
Cc: [email protected]
Subject: Re: [Asterisk-Users] Satellite Providers

I don't doubt at all what you are saying.  We never tested a truly
high-end solution such as the one you described, because the cost would
have been prohibitive for our application.  I'm sure we only evaluated
shared solutions.  I guess my mistake was believing the CIR claims.  At
the really low-end, I didn't expect much, since they don't offer ANY
CIR.
But when they claimed 64k, silly me, I believed it.

Bruce Komito
High Sierra Networks, Inc.
www.servers-r-us.com
(775) 236-5815


On Wed, 11 May 2005, Chad Wicker wrote:

> 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.
> >
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