RFC3261 SIP: Session Initiation Protocol This can be said to be the most important one in VoIP SIP-related standards, replacing the old version of the SIP standard RFC2543 download: http://www.faqs.org/ftp/rfc/pdf/rfc3261.txt.pdf
Chinese version http://www.boyinsoft.com/cn-rfc3261.pdf
RFC 3262 - Reliability of Provisional Responses in Session Initiation Protocol (SIP) Downloads: http://www.faqs.org/ftp/rfc/pdf/rfc3262.txt.pdfRFC 3263 - Session Initiation Protocol (SIP): Locating SIP Servers Download : Http://www.faqs.org/ftp/rfc/pdf/rfc3263.txt.pdfrfc2976 - The Sip Info method Download: http://www.faqs.org/ftp/rfc/pdf/rfc2976.txt.pdf
RFC2327 SDP - Session Description Protocol Download: http://www.faqs.org/ftp/rfc/pdf/rfc2327.txt.pdfrfc 3264 - An Offer / Answer Model with session Description Protocol (SDP) Download: http: // www .faqs.org / ftp / RFC / PDF / RFC3264.TXT.PDFRFC2936 - HTTP MIME TYPE HANDLER DETECTION Download: http://www.faqs.org/ftp/rfc/pdf/rfc2936.txt.pdfrf2616 - Hypertext Transfer Protocol - - http / 1.1 Download: http://www.faqs.org/ftp/rfc/rfc2616.pdfrfc2617 - http authentication: Basic and Digest Access Authentication Download: http://www.faqs.org/ftp/rfc/pdf/ Rfc2617.txt.pdfrtp - a Transport Protocol for Real-Time Applications The latest RTP RFC has been changed to RFC3550, replacing the old version of RFC1889 new version: http://www.faqs.org/ftp/rfc/rfc3550.pdf old version: http: / / www.faqs.org/ftp/rfc/pdf/rfc1889.txt.pdfrfc3551 - RTP Profile for Audio and Video Conference with minimal control Download: http://www.faqs.org/ftp/rfc/rfc3551.pdfrfc 2833 - Introduction to RTP PAYLOAD for DTMF DIGITS, TELEPHONY TONES AND TELEPHONY SIGNALS: In the IP Phone app, some lower transfer rates are often not correctly transferred to the DTMF (Dual Tone Multi Frequency "signal, so RFC2833 specifies how to stay in RTP The format of the DTMF signal is transmitted on the LOAD. Download: http://www.faqs.org/ftp/rfc/pdf/rfc2833.txt.pdf
