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SIP/VoIP network..

Viewing 5 posts - 1 through 5 (of 5 total)
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  • 27th June 2002 at 16:33 #21813
    Sankar Subbiah
    Guest

    Hi,

    I just subscribed to vonage (www.vonage.com) internet telephony service. I am keep wondering how the system works(from end-to-end). I searched on the internet and i came across several terms. I dont know from where to start. Could someone please tell me how this service works? Is there any document or tech. paper which gives me some idea about this service? Tech. doc. for CiscoATA186 device, which i use for this service, does not give me clear picture.

    Thanks,
    Sankar S.

    12th August 2002 at 15:26 #21814
    ANAND
    Guest

    HOW DOES NET PHONE WORK..?
    please give the detail knowledge of how the net phone works & all the tech-details.
    HOW DOES IT WORK ,HOW DOES IT GET’S CONNECTION’S TILL THE END USER.

    12th August 2002 at 16:42 #21815
    John R Hogan
    Guest

    A little detail…

    http://www.vonage.com/technology/index.phtml

    http://www.vonage.com/technology/aboutsip.phtml

    http://www.vonage.com/technology/services.phtml

    http://www.cs.columbia.edu/sip/

    24th August 2002 at 07:02 #21816
    AnonJuan
    Guest

    Sankar,

    Briefly…
    There are two main VoIP camps – H.323 (grandaddy) and SIP (newcomer).
    H.323 has a much richer featureset, but setting up and tearing down a call is complex.
    SIP is a simpler featureset, and simpler to manage. Vonage uses SIP.

    Simply…
    The gateway server connects your box to the phone network, and vice versa.

    SIP Vonage Phone
    Box Gateway System

    SIP connects to the server and leaves a connection open. This is how the Vonage gateway server knows how to find your Vonage box, no matter where it is. When someone calls you, they actually connect to the Vonage gateway server, which then does its VoIP thing, and sends the call to your box.

    The gateway server is hardcoded into the Cisco box, so the box always knows how to find the Vonage gateway server. When you dial out, the phone number is sent to the gateway server, which then does its VoIP thing again (in reverse) and connects your voice stream to the actual phone network.

    Hope that helps a little?

    AnonJuan

    28th August 2002 at 22:37 #21817
    Sankar Subbiah
    Guest

    Thanks Anon & John, Yes it helps me understand the process. I had somemore information about VoIP from various sites. Thanks Again.

    Sankar S.

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