[Asterisk-Users] Satellite Providers

[Rich]

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.

rich at isphone.net

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Bruce
Komito
Sent: Wednesday, May 11, 2005 19:11
To: Chad Wicker
Cc: asterisk-users at lists.digium.com
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
>
> >>> brucek at bagel.com 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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