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Vonage If you saw my recent post it gives you an idea of how it works as far as Vonage is concerned.
If you saw my recent post it gives you an idea of how it works as far as Vonage is concerned.
When you call your neighbor your Vonage device initiates a SIP message to Vonage's servers containing information about your call such as the number, your device MAC, IP, etc. Because of my location my calls are routed to Vonage in New Jersey via the internet. This server only handles the SIP traffic and basically controls the call. This server along with your Vonage device are in constant communication with each other on port 1000, even if you are not calling someone. This server then decides what route and carrier are to be used for your call. Vonage contracts with two or three different carriers who have private networks setup across the country and world for that matter. When the server makes the decison of where to route your call, that carrier's server responds and connects to two ports on your device. One is for upstream and the other for downstream. Your call then traverses the carrier's private network to a PSTN (Verizion, SBC, etc.) gateway located near the person you are calling. Your call then enters the PSTN network and you are now connected to your party. When you hang up, your device sends a terminate SIP message to the Vonage server overseeing your call. The server then tells the carrier' s server to terminate the connection.
I don't understand how Vonage to Vonage calls work. But I imagine it's a similar set-up to what paul said. My confusion comes from not completely understanding the variables involved with Vonage calls such as calling a Vonage number that was previously associated with a landline phone.
Read The Full Thread: I''m not able to find clear explanations of how VOIP works
• Can someone please tell me how VoIP works. I've got contradictory explanations
• This file was sent to me in a email about three years ago. I do not recall who sent
• That SIP stuff describes how calls get set up, but not so much about the fundamentals
• Simple way to explain it:
When you visit a website, you open a request to the
• It's all done by little elves....
Who cares, so long as it works?
(it is
NHTracker posted "If you saw my recent post it gives you an idea of how it works as far as Vonage is concerned." on 05/21/2005 |
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