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VOIP using Satellite Internet access

Viewing 10 posts - 1 through 10 (of 10 total)
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  • 20th April 2002 at 18:09 #21510
    Frank
    Guest

    I need some info on VOIP using Satellite internet access. I want to create a VPN over the sat Internet and use VOIP also. I am concern about delay due to the distance the signal have to travel. Can anyone tell me if I can create an acceptable VOIP network over satellite internet access? If so, how?

    21st April 2002 at 01:34 #21511
    Samatar
    Guest

    It would be really helpful if someone can comment on this one because I am interested in the same thing too. Also how far can the satelite signal go. Can you install the Satelite on one country where the central hub is located on another country or on another continent.

    Thanks

    Samatar

    23rd April 2002 at 13:37 #21512
    David Eshelman
    Guest

    You would need to utilize a hardware accelerated VPN to keep delays low, if this is a duplex satellite link there would be about a 500millisecond delay round-trip

    This is completely possible. It’s in use now…. There are multiple commercial satellites that can be utilized for this purpose and you can reach pretty much any country in the world from the USA (with the exception of a few, as the look angle is too low)

    24th April 2002 at 14:02 #21513
    Frank
    Guest

    I know some satellite company offer VOIP using satellite but I believe their prices are a little above what I’m willing to spend. I wanted utilize a cheaper Satellite system and create a VPN and utilize that VPN to send voice calls. I want to connect 2 company phone system over that satellite.

    24th April 2002 at 17:47 #21514
    David
    Guest

    satellite space is very expensive… and you get what you pay for… (as the old saying goes…)

    27th April 2002 at 18:58 #21515
    Sajjad
    Guest

    Dear David

    any sugested satellite company for pakistan for VOIP

    28th April 2002 at 02:35 #21516
    David
    Guest

    well according to this site i can’t post it here… they even deleted my message about the directory listing which is on their site…
    but you can email me deshelman@crawford.com

    30th May 2002 at 08:18 #21517
    Tommy
    Guest

    Anyone know how much is the performance different compare 2MB satellite and 2MB ADSL, which one is better.

    30th May 2002 at 22:43 #21518
    R
    Guest

    Tommy,
    If the satellite link is symmetric, you will be able to get more calls through but your trade off is delay.
    I never heard of 2MB ADSL…but it could just be my ignorance. I am assuming when you say this is ADSL you mean Asymmetric i.e. higher download rate than upload.

    VoIP is symmetric.

    31st May 2002 at 11:58 #21519
    David
    Guest

    Tommy,

    That depends on a lot of factors, like R said… if it is SDSL then that would be ideal.

    But what are the cost differences? do you get static ips? what kind of SLA do you get on a DSL line compared to Satellite?

    with a duplex satellite link you will have about ~600ms delay RTT

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