SIP – the open standard, and Skype – closed. But Skype adapts for real conditions better, SIP it is focused on conditions relatives to ideal.
Report SIP, Session Interaction Protocol (RFC 3621) is open by a cavity for developers. It(he) is well enough thought over, and at the present moment is the most popular as it is simple enough for hardware realization and, besides the organization of voice sessions of communication(connection), gives a number(line) of additional opportunities. Into problems(tasks) of report SIP enters only to establish and coordinate communication(connection), and it is not necessary that this communication(connection) was voice is there can be any stream of the data in real time – video, the multimedia data, interactive service.
Commands(teams) of the report remind HTTP, down to separate details.
Key feature SIP is client – server opiented. Here it is meant, that at any network of a SIP-telephony there is a server (GateKeeper).
Report SIP is well focused for work in local networks and on good Internet – channels. But what will take place when the Internet –...
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