sip 协议消息应答代码（SIP protocol message response code）.docVIP

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sip 协议消息应答代码（SIP protocol message response code）.doc

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sip 协议消息应答代码（SIP protocol message response code）

sip 协议消息应答代码（SIP protocol message response code） SIP protocol, message answering code, explanation, detailed record Content outline: 1XX = notification response 100 trying 180 dialing 181 is being transferred 182 queuing up 183 call progress 2XX = successful response 200 OK 202 accepted: used for referral 3xx = transit reply 300 multiple choice 301 is permanently moved 302 was temporarily relocated 304 not modified 305 using proxy servers 380 alternative services 4xx = call failed 400 improper call 401 unauthorized: used only by registered institutions, proxy servers should use proxy server authorization 407 402 asking for payment (booking for future use) 403 banned 404 not found: no users found 405 methods that are not allowed 406 unacceptable 407 requires proxy server authorization 408 call timeout: unable to locate user within scheduled time 410 has disappeared: the user has existed, but has disappeared from here 413 call entity is too large 414 call URI too long 415 unsupported media type 416 unsupported URI scheme 420 improper extensions: using an improper SIP protocol extension, the server cannot understand the extension 421 need to expand 423 the interval is too short 480 temporarily not available 481 call / transaction does not exist 482 detected the cycle 483 too many hops 484 address incomplete 485 blurred 486 busy here The 487 call has been terminated 488 not acceptable here 489 bad event 491 call pending 493, unable to interpret: unable to interpret the stylistic part of S/MIME 5xx = server failed 500 server internal error 501 cannot be implemented: the SIP call method cannot be implemented here 502 improper gateway 503 service is not available 504 server timeout 505 does not support this version: This version of the SIP protocol is not supported by the server 513 messages too long 6xx = global failure 600 busy everywhere 603 refusal 604 nowhere to exist 606 is not available Code detail: SIP protocol response code Answer code The answer code is included