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What is a SIP server?

April 26, 2017server SIP

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What is a SIP server?

1 Answer

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10 Posted

A SIP server is the main component of an IP PBX, dealing with the setup of all SIP calls in the network. A SIP server is also referred to as a SIP Proxy or a Registrar.. Can you list all known sip responses? 1xx = informational responses • 100 Trying • 180 Ringing • 181 Call Is Being Forwarded • 182 Queued • 183 Session Progress 2xx = success responses • 200 OK • 202 accepted: Used for referrals 3xx = redirection responses • 300 Multiple Choices • 301 Moved Permanently • 302 Moved Temporarily • 305 Use Proxy • 380 Alternative Service 4xx = request failures • 400 Bad Request • 401 Unauthorized: Used only by registrars. Proxys should use proxy authorization 407 • 402 Payment Required (Reserved for future use) • 403 Forbidden • 404 Not Found: User not found • 405 Method Not Allowed • 406 Not Acceptable • 407 Proxy Authentication Required • 408 Request Timeout: Couldn’t find the user in time • 410 Gone: The user existed once, but is not available here any more.