RE: VOIP over VSAT

From: Mohamed T. Kondela (mtaib@sagia.gov.sa)
Date: Tue Apr 18 2006 - 08:02:21 GMT-3


Mohamed,

There are companies using voip over VSAT in Saudi. I think Al-marai is
one of them. You may call their IT and take a feed-back.

Regards

Mohamed T. Kondela
Senior Network Engineer
IT Dept.
Fax: 4473037 x 303
mtaib@sagia.gov.sa
Saudi Arabian General Investment Authority

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-----Original Message-----

From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
James Ventre
Sent: Tuesday, April 18, 2006 12:54 PM
To: George Bethel
Cc: mohammed shoeb ahmed; Cisco certification
Subject: Re: VOIP over VSAT

I have about 1000 users that use VoIP over Satellite. Round trip
latency is about 501ms. As long as you can't see the other person
speaking you don't really notice the dealy. I've had no problems with
echo.

James

George Bethel wrote:
> one-way delay is probably going to be excessive. most
> sat links I've dealt with had 250 ms propation and
> network delay one-way. Add at least another 50-100 ms
> for packetization and and jitter buffer. The two
> biggest issues the user is likely to experience are
> echo and that the caller and called party will find
> themselves interrupting eachother more than normal.
> Setup a small pilot demo so the client can know first
> hand what kind of quality they can expect before they
> sign up for the final solution.
>
>
>
>
> --- mohammed shoeb ahmed <mdshoeb@gmail.com> wrote:
>
>> Guys,
>>
>> I am looking for a solution to Voice over VSAT
>> connection, I have a customer
>> connected to to remote sites through VSAT 1Meg, 512
>> up and 512 down
>> connection to each site. now I want to run voice
>> between these sites. I am
>> confused about the links cause VSAT uses UP and Down
>> channels for sending
>> and recieving traffic, does it effects voice
>> communications. What is a voice
>> behaviour on Satellite connection.
>>
>> your valuable input or reference material will be
>> appriciated.
>>
>> --
>> Best Regards,
>>
>> Mohammed Shoeb Ahmed
>>
>> Consultant
>>
>> Pho: 00966-01-2150166
>>
>> Mail: mshoeb@scs.com.sa
>>
>> Mob:00966-05-09144227
>>
>> Riyadh KSA
>>
>>
>



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