CODEWITHSUNDEEP
p2pvoip
user50819
user50819

Reputation: 333

What architecture do VoIP applications use, P2P or Client-Server?

Please let me know what architecture do VoIP applications use, P2P or Client-Server?

Thank you.

Upvotes: 7

Views: 4341

Answers (2)

ChrisW
ChrisW

Reputation: 56123

There's usually some kind of "presense server": devices register ("I exist here!") and calls are established via the server (when you say "I want to connect to device (555) 555-1234" that connection request is routed via presence servers).

After the call is established and the real-time voice/media is streaming, that traffic is usually peer-to-peer (bypassing any central server), except if there's a complication like both devices being behind firewalls.

Upvotes: 3

Charlie Martin
Charlie Martin

Reputation: 112404

Some of each in general. There are three protocols involved, usually. One of them, for example SIP, is used to establish the connection. you need a server for that because someone has to establish the original connection; that means advertising availability and such. The other two are essentially always RTP and RTCP -- "real time protocol" and "real time control protocol", and those are better P2P, because you want fast transmission with no intermediate bottleneck.

There's a nice article on the whole discussion here.

Upvotes: 6

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