SIPPING Working Group Miguel Garcia Internet Draft Ericsson Carsten Bormann Joerg Ott TZI/Uni Bremen Richard Price Siemens/Roke Manor Adam Roach dynamicsoft Expires: November 2002 May 2002 The SIP/SDP static dictionary for Signaling Compression Status of this memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or cite them other than as "work in progress". The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/lid-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html This document is an individual submission to the IETF. Comments should be directed to the authors. Abstract The Session Initiation Protocol (SIP) [2] is a text-based protocol for initiating and managing communication sessions. The protocol can be compressed by using Signaling Compression (SigComp) [1]. Similarly, the Session Description Protocol (SDP) [24] is a text-based protocol intended for describing multimedia sessions for the purposes of SIPPING Working Group Expiration 11/30/02 Page 1 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 session announcement, session invitation, and other forms of multimedia session initiation. This memo defines a SIP/SDP-specific static dictionary that SigComp can use in order to achieve higher efficiency. The dictionary is compression algorithm independent. Table of contents 1. Introduction......................................................2 3. The SIP static dictionary for Signaling Compression (SigComp).....4 4. The SDP static dictionary for Signaling Compression (SigComp)....12 5. Binary representation of the SIP/SDP dictionary..................13 6.Securty Cosidertions..............................................18 7. IANA Considerations..............................................18 8. Author's Addresses...............................................18 9. Acknowledgements.................................................19 10. References......................................................19 10.1 Normative references...........................................19 10.2 Informative references.........................................19 1. Introduction SIP [2] and SDP [24] are text-based protocols that use the UTF-8 charset (RFC 2279 [4]). SIP and SDP were designed for rich bandwidth links. However, when SIP/SDP is run over narrow bandwidth links, such as radio interfaces or low speed serial links, the session setup time increases substantially, compared to an operation over a rich bandwidth link. The session setup time can decrease dramatically if the SIP/SDP signaling is compressed. The signaling compression mechanisms specified in SigComp [1] provide a multiple compression/decompression algorithm framework to compress and decompress text-based protocols such as SIP and SDP. When compression is used in SIP/SDP, the compression achieves its maximum rate once a few message exchanges have taken place. This is due to the fact that the first message the compressor sends to the decompressor is only partially compressed, as there is not a previous stored state to compress against. As the goal is to reduce the session setup time as much as possible, it seems sensitive to investigate a mechanism to boost the compression rate from the first message. In this memo we introduce a static dictionary for SIP and SDP. The dictionary is to be used in conjunction with SIP, SDP and SigComp. The static SIP/SDP dictionary constitutes a SigComp state that can be used to refer compression states in the first SIP message that the compressor sends out. 2. Design considerations SIPPING Working Group Expiration 11/30/02 Page 2 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 The static SIP/SDP dictionary is a collection of well-known strings that appear in most of the SIP and SDP messages. The dictionary is not a comprehensive list of reserved words, but it includes most of the strings that appear in SIP and SDP signaling. The dictionary is unique. It is not going to evolve as SIP or SDP evolve. It is defined once, and stays as is forever. This solves the problems of updating, upgrading and finding out the dictionary that is supported at the remote end when several versions of the same dictionary coexist. Section 3 defines the collection of strings that are part of the SIP static dictionary. It contains references to the documents that define those strings. Section 4 defines the collection of strings that are part of the SDP static dictionary. It contains references to the documents that define those strings. Section 5 is the binary form of the SIP/SDP dictionary. This is the dictionary that is included the SigComp implementation. This dictionary is formed upon the collection of individual dictionaries in sections 3 and 4. The dictionary is a collection of UTF-8 encoded character strings. In order to facilitate the readability, we describe the dictionary in a table. Each row in the dictionary represents an entry. Each entry contains the string in the dictionary, its priority, its numerical ascendant position, its offset from the first octet, and a reference. The columns are described as follows: String: represents the UTF-8 string that is inserted into the dictionary. Note that the quotes (") are not part of the string itself. Note also that the notation [CRLF] represents a Carriage Return character (ASCII code 0x0D) followed by a Line Feed character (ASCII code 0x0A). Pr: indicates the priority of this string within the dictionary. Lower priorities indicate higher probability of the string to appear in most messages. The string is given a prioritized position within the dictionary. Higher priority numbers indicate lower probability of the string to appear in a message. The string is given a non-prioritized position within the dictionary. Off: indicates the hexadecimal offset of the entry with respect the first octet in the dictionary. Len: the length of the string (in hexadecimal). SIPPING Working Group Expiration 11/30/02 Page 3 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 References: contains a reference to the RFC and the section within the RFC where the string is defined. Note that the strings stored in the dictionary are case sensitive. The strings do not comprise the quotes ("), they are just shown here to increase the readability. Where there string is a header field, it also comprises the colon ":" and a white space. Note that this is a restriction against the SIP Augmented BNF, that allows other combinations (e.g., a white space or horizontal tabulator before the colon (":") sign). Some strings appear followed by an equal sign and some other not. This depends on whether the string is part of a parameter name or a parameter value. In a SIP message, all the SIP header fields terminate with a CRLF pair characters. As these characters are appended to the end of each SIP header line, right after the header values, and because the header values are typically not part of the static SIP dictionary, we cannot include the terminating CRLF, as part of the SIP static dictionary. Instead, the approach we have taken is to include in each header field entry the CRLF from the previous line that prepends every header field. We have represented CRLF by the notation [CRLF]. Therefore, an entry in the dictionary represented as: "[CRLF]From: " SHALL be interpreted as an entry whose value is CR, LF, the word From, a colon and a whitespace. SIP responses are composed of a status code (e.g., "302") and a reason phrase (e.g., "Moved Temporarily"). The status code is a normative part, whereas the reason phrase is not normative, it is just a suggested text. Therefore, both "302 Moved Temporarily" and "302 Redirect" are valid SIP responses. In the SIP dictionary we have included two entries per response code, one including only the status code an a white space (e.g. "302 ") and another one including both the status code and the suggested reason phrase (e.g., "302 Moved Temporarily"). The former can be used when the SIP response changed the suggested reason phrase by another one. The later can be used when the suggested reason phrase is part of the response. In this way, we accommodate both alternatives. 3. The SIP static dictionary for Signaling Compression (SigComp) String Pr Off Len References =================================== == ==== ==== ========== "sip:" 1 0DEB 0004 [2] 19.1.1 "sips:" 3 0B9B 0005 [2] 19.1.1 "tel:" 3 0998 0004 [6] 2.2 "SIP/2.0" 1 0DC6 0007 [2] 25.1 "INVITE" 1 0DEF 0006 [2] 25.1 "INVITE " 1 0DEF 0007 [2] 25.1 "ACK" 2 0C8C 0003 [2] 25.1 SIPPING Working Group Expiration 11/30/02 Page 4 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 "ACK " 2 0C8C 0004 [2] 25.1 "OPTIONS" 4 033D 0007 [2] 25.1 "OPTIONS " 4 033D 0008 [2] 25.1 "BYE" 2 0D62 0003 [2] 25.1 "BYE " 2 0D62 0004 [2] 25.1 "CANCEL" 4 072A 0006 [2] 25.1 "CANCEL " 4 072A 0007 [2] 25.1 "REGISTER" 2 0C13 0008 [2] 25.1 "REGISTER " 2 0C13 0009 [2] 25.1 "INFO" 4 083D 0004 [7] 2 "INFO " 4 083D 0005 [7] 2 "SUBSCRIBE" 2 0AC8 0009 [8] 8.1.1 "SUBSCRIBE " 2 0AC8 000A [8] 8.1.1 "NOTIFY" 2 0CD0 0006 [8] 8.1.2 "NOTIFY " 2 0CD0 0007 [8] 8.1.2 "PRACK" 2 0C8A 0005 [9] 6 "PRACK " 2 0C8A 0006 [9] 6 "UPDATE" 2 0CD7 0006 [10] 7, 10 "UPDATE " 2 0CD7 0007 [10] 7, 10 "REFER" 4 07BB 0005 [12] 3, 10 "REFER " 4 07BB 0006 [12] 3, 10 "MESSAGE" 4 06A6 0007 [20] 9 "MESSAGE " 4 06A6 0008 [20] 9 "[CRLF]Accept: " 4 0815 000A [2] 20.1 "[CRLF]Accept-Contact: " 5 0012 0012 [22] 5 "[CRLF]Accept-Encoding: " 4 0602 0013 [2] 20.2 "[CRLF]Accept-Language: " 4 0345 0013 [2] 20.3 "[CRLF]Alert-Info: " 4 06F4 000E [2] 20.4 "[CRLF]Allow: " 3 0A1B 0009 [2] 20.5 "[CRLF]Allow-Events: " 3 09D2 0010 [8] 8.2.1 "[CRLF]Authentication-Info: " 4 03B0 0017 [2] 20.6 "[CRLF]Authorization: " 2 0C51 0011 [2] 20.7 "[CRLF]Call-ID: " 1 0E01 000B [2] 20.8 "[CRLF]Call-Info: " 5 0052 000D [2] 20.9 "[CRLF]Contact: " 1 0DF6 000B [2] 20.10 "[CRLF]Content-Disposition: " 4 035F 0017 [2] 20.11 "[CRLF]Content-Encoding: " 4 04A6 0014 [2] 20.12 "[CRLF]Content-Language: " 4 04BE 0014 [2] 20.13 "[CRLF]Content-Length: " 2 0C3B 0012 [2] 20.14 "[CRLF]Content-Type: " 2 0C6F 0010 [2] 20.15 "[CRLF]CSeq: " 1 0E12 0008 [2] 20.16 "[CRLF]Date: " 4 087E 0008 [2] 20.17 "[CRLF]Error-Info: " 5 0044 000E [2] 20.18 "[CRLF]Event: " 3 09EE 000C [8] 8.2.1 "[CRLF]Expires: " 2 0D01 000B [2] 20.19 "[CRLF]From: " 1 0E1A 0008 [2] 20.20 "[CRLF]In-Reply-To: " 4 06DB 000F [2] 20.21 "[CRLF]Max-Forwards: " 1 0DD3 0010 [2] 20.22 "[CRLF]Min-Expires: " 4 06AE 000F [2] 20.23 "[CRLF]Min-SE: " 4 080B 000A [17] 5 "[CRLF]MIME-Version: " 5 0034 0010 [2] 20.24 "[CRLF]Organization: " 5 0024 0010 [2] 20.25 SIPPING Working Group Expiration 11/30/02 Page 5 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 "[CRLF]Path: " 3 0A24 0008 [15] 3 "[CRLF]Priority: " 4 075E 000C [2] 20.26 "[CRLF]Proxy-Authenticate: " 4 040E 0016 [2] 20.27 "[CRLF]Proxy-Authorization: " 4 0395 0017 [2] 20.28 "[CRLF]Proxy-Require: " 4 0653 0011 [2] 20.29 "[CRLF]P-Media-Authorization: " 3 0B3F 0019 [21] 5.1, 9 "[CRLF]RAck: " 2 0D4C 0008 [9] 7.2 "[CRLF]Reason: " 3 0A11 000A [16] 2 "[CRLF]Record-Route: " 3 09C2 0010 [2] 20.30 "[CRLF]Refer-To: " 4 07A6 000C [12] 3, 10 "[CRLF]Reject-Contact: " 5 0000 0012 [22] 5 "[CRLF]Replaces: " 4 079A 000C [13] 3.1 "[CRLF]Reply-To: " 5 006C 000C [2] 20.31 "[CRLF]Request-Disposition: " 4 037A 0017 [22] 5 "[CRLF]Require: " 2 0CEB 000B [2] 20.32 "[CRLF]Retry-After: " 4 06BD 000F [2] 20.33 "[CRLF]Route: " 2 0D29 0009 [2] 20.34 "[CRLF]RSeq: " 2 0D54 0008 [9] 7.1 "[CRLF]Security-Mechanism: " 2 0BA0 0016 [19] 6.4 "[CRLF]Server: " 4 07ED 000A [2] 20.35 "[CRLF]Session-Expires: " 3 0973 0013 [17] 4 "[CRLF]Subject: " 5 0078 000B [2] 20.36 "[CRLF]Subscription-State: " 3 0946 0016 [8] 8.2.3 "[CRLF]Supported: " 2 0CDE 000D [2] 20.37 "[CRLF]Timestamp: " 5 005F 000D [2] 20.38 "[CRLF]To: " 1 0E29 0006 [2] 20.39 "[CRLF]Unsupported: " 4 06CC 000F [2] 20.40 "[CRLF]User-Agent: " 4 0710 000E [2] 20.41 "[CRLF]Via: " 1 0E22 0007 [2] 20.42 "[CRLF]Warning: " 5 0083 000B [2] 20.43 "[CRLF]WWW-Authenticate: " 2 0BE3 0014 [2] 20.44 "[CRLF][CRLF]" 2 0B3D 0004 [2] 7 ";transport=" 4 07C1 000B [2] 25.1 "udp" 4 0675 0003 [2] 25.1 "tcp" 4 09B0 0003 [2] 25.1 "sctp" 4 02FE 0004 [2] 25.1 "tls" 4 05BA 0003 [2] 25.1 ";user=" 3 0A2C 0006 [2] 25.1 "phone" 3 0185 0005 [2] 25.1 "ip" 4 015F 0002 [2] 25.1 ";method=" 4 0876 0008 [2] 25.1 ";ttl=" 4 08B9 0005 [2] 25.1 ";lr" 2 0CA6 0003 [2] 25.1 "Digest " 2 0D66 0007 [5] 3.2.1, 3.2.2 "username=" 2 0BC5 0009 [5] 3.2.2 "uri=" 2 0D7A 0004 [5] 3.2.2 "qop=" 2 0D7E 0004 [5] 3.2.1, 3.2.2 "cnonce=" 2 0D6D 0007 [5] 3.2.2 "nc=" 2 0D5F 0003 [5] 3.2.2 "response=" 2 0AE8 0009 [5] 3.2.2 "nextnonce=" 2 0B7E 000A [5] 3.2.3 "rspauth=" 2 0A9E 0008 [5] 3.2.3 SIPPING Working Group Expiration 11/30/02 Page 6 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 "realm=" 2 0CAC 0006 [5] 3.2.1 "domain=" 2 0AC1 0007 [5] 3.2.1 "nonce=" 2 0B82 0006 [5] 3.2.1 "opaque=" 4 08A6 0007 [5] 3.2.1 "stale=" 4 01FB 0006 [5] 3.2.1 "true" 4 0572 0004 [5] 3.2.1, [22] 5.2 "false" 4 0BCE 0005 [5] 3.2.1 "algorithm=" 2 0BD9 000A [5] 3.2.1, [18] 3.1 "MD5" 2 0C03 0003 [5] 3.2.1, [18] 3.1 "MD5-sess" 2 0C03 0008 [5] 3.2.1, [18] 3.1 "auth" 4 0455 0004 [5] 3.2.1 "auth-int" 4 0455 0008 [5] 3.2.1 "AKAv" 2 0CB2 0004 [18] 6 "auts=" 4 08B4 0005 [18] 3.1 "to=" 3 09BF 0003 [19] 6.4 "from=" 3 0A32 0005 [19] 6.4 "mech=" 3 0A37 0005 [19] 6.4 "digest" 4 031E 0006 [19] 6.4 "ipsec-ike" 4 07B2 0009 [19] 6.4 "ipsec-man" 4 0B10 0009 [19] 6.4 "smime" 4 02C7 0005 [19] 6.4 "pref=" 4 0C6A 0005 [19] 6.4 "alg=" 4 026B 0004 [19] 6.4 ";purpose=" 5 00B6 0009 [2] 20.9 "icon" 5 0D5C 0004 [2] 20.9, 20.11 "info" 5 0C4D 0004 [2] 20.9 "card" 5 0112 0004 [2] 20.9 ";expires=" 2 0D32 0009 [2] 25.1, [8] 8.4 "render" 5 0A99 0006 [2] 20.11 "session" 5 0C07 0007 [2] 20.11 "alert" 5 0C36 0005 [2] 20.11 ";handling=" 5 00A2 000A [2] 20.11 "optional" 2 0C30 0008 [2] 20.11 "required" 5 096B 0008 [2] 20.11 "text" 5 096B 0008 [2] 25.1 "image" 5 0108 0005 [2] 25.1 "audio" 5 0C2C 0005 [2] 25.1 "video" 5 0A73 0005 [2] 25.1 "application" 2 05C1 000B [2] 25.1 "message" 4 02CA 0007 [2] 25.1, [14] 1, 2 "sip" 4 01AD 0003 [14] 1 "sipfrag" 4 01AD 0007 [14] 2 "multipart" 4 067C 0009 [2] 25.1, 7.4.1 "sdp" 2 077A 0003 "xml" 2 0D90 0003 "Mon, " 4 08C8 0005 [2] 25.1 "Tue, " 4 08CD 0005 [2] 25.1 "Wed, " 4 08BE 0005 [2] 25.1 "Thu, " 4 035A 0005 [2] 25.1 "Fri, " 4 08D2 0005 [2] 25.1 "Sat, " 4 08C3 0005 [2] 25.1 SIPPING Working Group Expiration 11/30/02 Page 7 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 "Sun, " 4 0871 0005 [2] 25.1 " Jan " 4 0985 0005 [2] 25.1 " Feb " 4 04B9 0005 [2] 25.1 " Mar " 4 04D1 0005 [2] 25.1 " Apr " 4 0BF6 0005 [2] 25.1 " May " 4 0423 0005 [2] 25.1 " Jun " 4 0BB5 0005 [2] 25.1 " Jul " 4 095B 0005 [2] 25.1 " Aug " 4 03C6 0005 [2] 25.1 " Sep " 4 0375 0005 [2] 25.1 " Oct " 4 03AB 0005 [2] 25.1 " Nov " 4 0390 0005 [2] 25.1 " Dec " 4 0B57 0005 [2] 25.1 " GMT" 4 0357 0004 [2] 25.1 ";tag=" 1 0E2F 0005 [2] 25.1 "emergency" 4 02AB 0009 [2] 20.26 "urgent" 4 0DB1 0006 [2] 20.26 "normal" 4 0724 0006 [2] 20.26 "non-urgent" 4 0DAD 000A [2] 20.26 ";duration=" 4 0829 000A [2] 20.33 ";maddr=" 4 08AD 0007 [2] 20.42 ";received=" 4 081F 000A [2] 20.42 ";branch=" 5 0DB7 0008 [2] 20.42 ";branch=" 1 0DB7 000F [2] 20.42 "z9hG4bK" 5 0DBF 0007 [2] 8.1.1.7 "SIP" 5 0DC6 0003 [2] 25.1, [16] 2 "UDP" 2 0D8A 0003 [2] 20.42 "TCP" 2 0D93 0003 [2] 20.42 "TLS" 4 086F 0003 [2] 20.42 "SCTP" 4 0C87 0004 [2] 20.42 "active" 4 09A2 0006 [8] 8.4 "pending" 4 0336 0007 [8] 8.4 "terminated" 4 0B6B 000A [8] 8.4 ";reason=" 4 089E 0008 [8] 8.4 ";retry-after=" 4 0731 000D [8] 8.4 "deactivated" 4 0289 000B [8] 8.4 "probation" 4 0136 0009 [8] 8.4 "rejected" 4 090A 0008 [8] 8.4 "timeout" 4 0684 0007 [8] 8.4 "giveup" 4 0131 0006 [8] 8.4 "noresource" 4 03D7 000A [8] 8.4 ";id=" 4 08EF 0004 [8] 8.4 "100rel" 2 0D74 0006 [9] 8.1 "precondition" 2 0DA2 000C [11] 8 "refer" 3 0CA8 0005 [12] 10 "to-tag" 4 04FD 0006 [13] 3.2 "from-tag" 4 02E6 0008 [13] 3.2 "replaces" 4 01A6 0008 [13] 3.4 "Q.850" 5 0AA6 0005 [16] 2 ";cause=" 5 00EF 0007 [16] 2 ";text=" 5 00FC 0006 [16] 2 "path" 3 0B5C 0004 [15] 3 SIPPING Working Group Expiration 11/30/02 Page 8 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 ";refresher=" 4 07E2 000B [17] 4 "uac" 4 0753 0003 [17] 4 "uas" 4 08F6 0003 [17] 4 "timer" 4 0A95 0005 [17] 7.1 ";class=" 5 00E8 0007 [22] 5.1 ";duplex=" 5 00D1 0008 [22] 5.1 ";feature=" 5 00C8 0009 [22] 5.1 ";language=" 5 00AC 000A [22] 5.1 ";media=" 5 00E1 0007 [22] 5.1 ";mobility=" 5 008E 000A [22] 5.1 "fixed" 5 010D 0005 [22] 5.1 "mobile" 5 0102 0006 [22] 5.1 "personal" 5 0265 0008 [22] 5.1 "business" 5 0C62 0008 [22] 5.1 "full" 5 0116 0004 [22] 5.1 "half" 5 0B5F 0004 [22] 5.1 "receive-only" 5 0241 000C [22] 5.1 "send-only" 5 0A5F 0009 [22] 5.1 "voice-mail" 5 0CB5 000A [22] 5.1 "attendant" 5 09A8 0009 [22] 5.1 ";priority=" 5 0098 000A [22] 5.1 "description" 5 015A 000B [22] 5.1 ";methods=" 5 00BF 0009 [22] 5.1 ";scheme=" 5 00D9 0008 [22] 5.2 ";only=" 5 00F6 0006 [22] 5.2 ";q=" 4 08F3 0003 [2] 25.1, [22] 5.2 "proxy" 5 0677 0005 [22] 5.5 "redirect" 5 01D2 0008 [22] 5.5 "cancel" 5 0167 0006 [22] 5.5 "no-cancel" 5 0164 0009 [22] 5.5 "fork" 5 0141 0004 [22] 5.5 "no-fork" 5 013E 0007 [22] 5.5 "recurse" 5 0A5A 0007 [22] 5.5 "non-recurse" 5 0A56 000B [22] 5.5 "parallel" 5 0301 0008 [22] 5.5 "sequential" 5 0BD1 000A [22] 5.5 "queue" 5 0BFE 0005 [22] 5.5 "no-queue" 5 0BFB 0008 [22] 5.5 ";comp=sigcomp" 1 0D96 000D [23] 6 "100 " 5 0CBF 0004 [2] 21.1.1 "100 Trying" 2 0CBF 000A [2] 21.1.1 "180 " 5 0C9B 0004 [2] 21.1.2 "180 Ringing" 2 0C9B 000B [2] 21.1.2 "181 " 5 026F 0004 [2] 21.1.3 "181 Call Is Being Forwarded" 4 026F 001B [2] 21.1.3 "182 " 5 06EA 0004 [2] 21.1.4 "182 Queued" 4 06EA 000A [2] 21.1.4 "183 " 5 0B88 0004 [2] 21.1.5 "183 Session Progress" 2 0B88 0014 [2] 21.1.5 "200 " 5 0E0C 0004 [2] 21.2.1 "200 OK" 1 0E0C 0006 [2] 21.2.1 "202 " 5 093A 0004 [8] 8.3.1 SIPPING Working Group Expiration 11/30/02 Page 9 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 "202 Accepted" 3 093A 000C [8] 8.3.1 "300 " 5 02B4 0004 [2] 21.3.1 "300 Multiple Choices" 4 02B4 0014 [2] 21.3.1 "301 " 5 04D6 0004 [2] 21.3.2 "301 Moved Permanently" 4 04D6 0015 [2] 21.3.2 "302 " 5 0491 0004 [2] 21.3.3 "302 Moved Temporarily" 4 0491 0015 [2] 21.3.3 "305 " 5 0639 0004 [2] 21.3.4 "305 Use Proxy" 4 0639 000D [2] 21.3.4 "380 " 5 0428 0004 [2] 21.3.5 "380 Alternative Service" 4 0428 0017 [2] 21.3.5 "400 " 5 098A 0004 [2] 21.4.1 "400 Bad Request" 4 098A 000F [2] 21.4.1 "401 " 5 0C1C 0004 [2] 21.4.2 "401 Unauthorized" 2 0C1C 0010 [2] 21.4.2 "402 " 5 0503 0004 [2] 21.4.3 "402 Payment Required" 4 0503 0014 [2] 21.4.3 "403 " 5 03CB 0004 [2] 21.4.4 "403 Forbidden" 4 03CB 000D [2] 21.4.4 "404 " 5 0646 0004 [2] 21.4.5 "404 Not Found" 4 0646 000D [2] 21.4.5 "405 " 5 043F 0004 [2] 21.4.6 "405 Method Not Allowed" 4 043F 0016 [2] 21.4.6 "406 " 5 0576 0004 [2] 21.4.7 "406 Not Acceptable" 4 0576 0012 [2] 21.4.7 "407 " 5 01B4 0004 [2] 21.4.8 "407 Proxy Authentication Required" 4 01B4 0021 [2] 21.4.8 "408 " 5 03E1 0004 [2] 21.4.9 "408 Request Timeout" 4 03E1 0013 [2] 21.4.9 "410 " 5 074B 0004 [2] 21.4.10 "410 Gone" 4 074B 0008 [2] 21.4.10 "413 " 5 0B1F 0004 [2] 21.4.11 "413 Request Entity Too Large" 4 0B1F 001C [2] 21.4.11 "414 " 5 011A 0004 [2] 21.4.12 "414 Request-URI Too Long" 4 011A 0018 [2] 21.4.12 "415 " 5 024D 0004 [2] 21.4.13 "415 Unsupported Media Type" 4 024D 001A [2] 21.4.13 "416 " 5 0294 0004 [2] 21.4.14 "416 Unsupported URI Scheme" 4 0294 001A [2] 21.4.14 "420 " 5 0A46 0004 [2] 21.4.15 "420 Bad Extension" 4 0A46 0011 [2] 21.4.15 "421 " 5 0145 0004 [2] 21.4.16 "421 Extension Required" 4 0145 0016 [2] 21.4.16 "422 " 5 0AF1 0004 [17] 6 "422 Session Timer Too Small" 4 0AF1 001B [17] 6 "423 " 5 02D1 0004 [2] 21.4.17 "423 Interval Too Brief" 4 02D1 0016 [2] 21.4.17 "480 " 5 0912 0004 [2] 21.4.18 "480 Temporarily Unavailable" 3 0912 001B [2] 21.4.18 "481 " 5 01DA 0004 [2] 21.4.19 "481 Call/Transaction Does Not Exist" 4 01DA 0023 [2] 21.4.19 "482 " 5 0588 0004 [2] 21.4.20 SIPPING Working Group Expiration 11/30/02 Page 10 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 "482 Loop Detected" 4 0588 0011 [2] 21.4.20 "483 " 5 02EE 0004 [2] 21.4.21 "483 Too Many Hops" 4 02EE 0011 [2] 21.4.21 "484 " 5 016D 0004 [2] 21.4.22 "484 Address Incomplete" 4 016D 0016 [2] 21.4.22 "485 " 5 0BBA 0004 [2] 21.4.23 "485 Ambiguous" 4 0BBA 000D [2] 21.4.23 "486 " 5 0960 0004 [2] 21.4.24 "486 Busy Here" 3 0960 000D [2] 21.4.24 "487 " 5 0309 0004 [2] 21.4.25 "487 Request Terminated" 4 0309 0016 [2] 21.4.25 "488 " 5 0191 0004 [2] 21.4.26 "488 Not Acceptable Here" 4 0191 0017 [2] 21.4.26 "489 " 5 05AE 0004 [8] 8.3.2 "489 Bad Event" 4 05AE 000D [8] 8.3.2 "491 " 5 052A 0004 [2] 21.4.27 "491 Request Pending" 4 052A 0013 [2] 21.4.27 "493 " 5 054F 0004 [2] 21.4.28 "493 Undecipherable" 4 054F 0012 [2] 21.4.28 "500 " 5 0201 0004 [2] 21.5.1 "500 Server Internal Error" 4 0201 0019 [2] 21.5.1 "501 " 5 0517 0004 [2] 21.5.2 "501 Not Implemented" 4 0517 0013 [2] 21.5.2 "502 " 5 05CD 0004 [2] 21.5.3 "502 Bad Gateway" 4 05CD 000F [2] 21.5.3 "503 " 5 03F7 0004 [2] 21.5.4 "503 Service Unavailable" 4 03F7 0017 [2] 21.5.4 "504 " 5 0A83 0004 [2] 21.5.5 "504 Server Time-out" 4 0A83 0013 [2] 21.5.5 "505 " 5 0AA9 0004 [2] 21.5.6 "505 Version Not Supported" 4 0AA9 0019 [2] 21.5.6 "513 " 5 0467 0004 [2] 21.5.7 "513 Message Too Large" 4 0467 0015 [2] 21.5.7 "580 " 5 0AD2 0004 [11] 8 "580 Precondition Failure" 4 0AD2 0018 [11] 8 "600 " 5 08F9 0004 [2] 21.6.1 "600 Busy Everywhere" 3 08F9 0013 [2] 21.6.1 "603 " 5 0B75 0004 [2] 21.6.2 "603 Decline" 4 0B75 000B [2] 21.6.2 "604 " 5 0228 0004 [2] 21.6.3 "604 Does Not Exist Anywhere" 4 0228 001B [2] 21.6.3 "606 " 5 053D 0004 [2] 21.6.4 "606 Not Acceptable" 4 053D 0012 [2] 21.6.4 "687 " 5 047C 0004 [13] 3.5 "687 Dialog Terminated" 4 047C 0015 [13] 3.5 "Anonymous" 3 0DE3 0009 [2] 8.1.1.3 SIPPING Working Group Expiration 11/30/02 Page 11 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 4. The SDP static dictionary for Signaling Compression (SigComp) String Pr Off Len References =================================== == ==== ==== ========== "v=0[CRLF]o=" 2 0CC9 0007 [24] 6 "[CRLF]s=" 2 0D86 0004 [24] 6 "[CRLF]i=" 4 08EB 0004 [24] 6 "[CRLF]u=" 4 08E7 0004 [24] 6 "[CRLF]e=" 4 08E3 0004 [24] 6 "[CRLF]c=IN IP4 " 3 0A06 000B [24] 6 "[CRLF]c=IN IP6 " 2 0C90 000B [24] 6 "[CRLF]c=" 5 0A06 0004 [24] 6 "[CRLF]b=" 3 0A3C 0004 [24] 6 "[CRLF]t=" 2 0D82 0004 [24] 6 "[CRLF]r=" 4 08DF 0004 [24] 6 "[CRLF]z=" 4 08DB 0004 [24] 6 "[CRLF]k=clear:" 4 07F7 000A [24] 6 "[CRLF]k=base64:" 4 07D7 000B [24] 6 "[CRLF]k=uri:" 4 0896 0008 [24] 6 "[CRLF]k=prompt:" 4 069B 000B [24] 6 "[CRLF]k=" 5 069B 0004 [24] 6 "[CRLF]a=cat:" 4 088E 0008 [24] 6 "[CRLF]a=keywds:" 4 07CC 000B [24] 6 "[CRLF]a=tool:" 4 0854 0009 [24] 6 "[CRLF]a=ptime:" 4 0801 000A [24] 6 "[CRLF]a=maxptime:" 4 073E 000D [24] 6 "[CRLF]a=rtpmap:" 2 0CF6 000B [24] 6 "[CRLF]a=recvonly" 3 09FA 000C [24] 6 "[CRLF]a=sendrecv" 3 0A68 000C [24] 6 "[CRLF]a=sendonly" 3 09E2 000C [24] 6 "[CRLF]a=inactive" 3 099C 000C [24] 6 "[CRLF]a=orient:portrait" 4 04EB 0013 [24] 6 "[CRLF]a=orient:landscape" 4 0324 0014 [24] 6 "[CRLF]a=orient:seascape" 4 05EF 0013 [24] 6 "[CRLF]a=type:broadcast" 4 0561 0012 [24] 6 "[CRLF]a=type:meeting" 4 068B 0010 [24] 6 "[CRLF]a=type:moderated" 4 0627 0012 [24] 6 "[CRLF]a=type:test" 4 09B3 000D [24] 6 "[CRLF]a=type:H.332" 4 092D 000E [24] 6 "[CRLF]a=type:recvonly" 4 0664 0011 [24] 6 "[CRLF]a=charset:" 4 076A 000C [24] 6 "[CRLF]a=sdplang:" 4 0776 000C [24] 6 "[CRLF]a=lang:" 4 084B 0009 [24] 6 "[CRLF]a=framerate:" 4 0702 000E [24] 6 "[CRLF]a=quality:" 4 0782 000C [24] 6 "[CRLF]a=fmtp:" 4 0842 0009 [24] 6 "[CRLF]a=curr:" 2 0D3B 0009 [11] 4 "[CRLF]a=des:" 2 0D44 0008 [11] 4 "[CRLF]a=conf:" 2 0D20 0009 [11] 4 "[CRLF]a=mid:" 4 0886 0008 [29] 3 "[CRLF]a=group:" 4 0833 000A [29] 3 "[CRLF]a=key-mgmt:MIKEY" 4 0615 0012 [31] 2.1, [32] 6 SIPPING Working Group Expiration 11/30/02 Page 12 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 "[CRLF]a=" 5 0324 0004 [24] 6 "[CRLF]m=audio " 2 0D0C 000A [24] 6 "[CRLF]m=video " 2 0D16 000A [24] 6 "[CRLF]m=application " 4 05BD 0010 [24] 6 "[CRLF]m=data " 4 0866 0009 [24] 6 "[CRLF]m=control " 4 078E 000C [24] 6 "[CRLF]m=" 5 05BD 0004 [24] 6 "AS " 3 0A43 0003 [24] 6 "CT " 3 0A40 0003 [24] 6 "RTP/AVP " 2 0C7F 0008 [24] A "udp" 4 0675 0003 [24] A "0.0.0.0" 4 0DCC 0007 [24] A "qos" 2 0D8D 0003 [11] 4 "mandatory" 2 0B16 0009 [11] 4 "optional" 2 0C30 0008 [11] 4 "none" 2 0C0D 0004 [11] 4 "failure" 4 0B62 0007 [11] 4 "unknown" 4 071E 0007 [11] 4 "e2e" 2 0B3A 0003 [11] 4 "local" 2 0B0B 0005 [11] 4 "remote" 2 0B67 0006 [11] 4 "send" 2 09E6 0004 [11] 4 "recv" 2 066D 0004 [11] 4 "sendrecv" 2 0A6C 0008 [11] 4 "AMR" 2 0C11 0003 [28] 8 "octet-align=" 4 0A77 000C [28] 8 "mode-set=" 4 085D 0009 [28] 8 "mode-change-period=" 4 05DC 0013 [28] 8 "mode-change-neighbor=" 4 0599 0015 [28] 8 "crc=" 4 08D7 0004 [28] 8 "robust-sorting=" 4 0219 000F [28] 8 "interleaving=" 4 045A 000D [28] 8 "channels=" 4 0755 0009 [28] 8 "octet-align" 4 0A77 000B [28] 8 "telephone-event" 4 0181 000F [30] 3.3, 6.1 "events" 4 018B 0006 [30] 6.1 "rate" 4 0634 0004 [30] 6.1, 6.2 "tone" 4 03F3 0004 [30] 6.2 5. Binary representation of the SIP/SDP dictionary This section contains the result of combining the SIP and the SDP dictionaries described in sections 3 and 4. This is the SIP/SDP dictionary (state) that is loaded into SigComp. 0000 0d0a 5265 6a65 6374 2d43 6f6e 7461 6374 ..Reject-Contact 0010 3a20 0d0a 4163 6365 7074 2d43 6f6e 7461 : ..Accept-Conta 0020 6374 3a20 0d0a 4f72 6761 6e69 7a61 7469 ct: ..Organizati 0030 6f6e 3a20 0d0a 4d49 4d45 2d56 6572 7369 on: ..MIME-Versi 0040 6f6e 3a20 0d0a 4572 726f 722d 496e 666f on: ..Error-Info 0050 3a20 0d0a 4361 6c6c 2d49 6e66 6f3a 200d : ..Call-Info: . SIPPING Working Group Expiration 11/30/02 Page 13 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 0060 0a54 696d 6573 7461 6d70 3a20 0d0a 5265 .Timestamp: ..Re 0070 706c 792d 546f 3a20 0d0a 5375 626a 6563 ply-To: ..Subjec 0080 743a 200d 0a57 6172 6e69 6e67 3a20 3b6d t: ..Warning: ;m 0090 6f62 696c 6974 793d 3b70 7269 6f72 6974 obility=;priorit 00A0 793d 3b68 616e 646c 696e 673d 3b6c 616e y=;handling=;lan 00B0 6775 6167 653d 3b70 7572 706f 7365 3d3b guage=;purpose=; 00C0 6d65 7468 6f64 733d 3b66 6561 7475 7265 methods=;feature 00D0 3d3b 6475 706c 6578 3d3b 7363 6865 6d65 =;duplex=;scheme 00E0 3d3b 6d65 6469 613d 3b63 6c61 7373 3d3b =;media=;class=; 00F0 6361 7573 653d 3b6f 6e6c 793d 3b74 6578 cause=;only=;tex 0100 743d 6d6f 6269 6c65 696d 6167 6566 6978 t=mobileimagefix 0110 6564 6361 7264 6675 6c6c 3431 3420 5265 edcardfull414 Re 0120 7175 6573 742d 5552 4920 546f 6f20 4c6f quest-URI Too Lo 0130 6e67 6976 6575 7072 6f62 6174 696f 6e6f ngiveuprobationo 0140 2d66 6f72 6b34 3231 2045 7874 656e 7369 -fork421 Extensi 0150 6f6e 2052 6571 7569 7265 6465 7363 7269 on Requiredescri 0160 7074 696f 6e6f 2d63 616e 6365 6c34 3834 ptiono-cancel484 0170 2041 6464 7265 7373 2049 6e63 6f6d 706c Address Incompl 0180 6574 656c 6570 686f 6e65 2d65 7665 6e74 etelephone-event 0190 7334 3838 204e 6f74 2041 6363 6570 7461 s488 Not Accepta 01A0 626c 6520 4865 7265 706c 6163 6573 6970 ble Hereplacesip 01B0 6672 6167 3430 3720 5072 6f78 7920 4175 frag407 Proxy Au 01C0 7468 656e 7469 6361 7469 6f6e 2052 6571 thentication Req 01D0 7569 7265 6469 7265 6374 3438 3120 4361 uiredirect481 Ca 01E0 6c6c 2f54 7261 6e73 6163 7469 6f6e 2044 ll/Transaction D 01F0 6f65 7320 4e6f 7420 4578 6973 7461 6c65 oes Not Existale 0200 3d35 3030 2053 6572 7665 7220 496e 7465 =500 Server Inte 0210 726e 616c 2045 7272 6f72 6f62 7573 742d rnal Errorobust- 0220 736f 7274 696e 673d 3630 3420 446f 6573 sorting=604 Does 0230 204e 6f74 2045 7869 7374 2041 6e79 7768 Not Exist Anywh 0240 6572 6563 6569 7665 2d6f 6e6c 7934 3135 ereceive-only415 0250 2055 6e73 7570 706f 7274 6564 204d 6564 Unsupported Med 0260 6961 2054 7970 6572 736f 6e61 6c67 3d31 ia Typersonalg=1 0270 3831 2043 616c 6c20 4973 2042 6569 6e67 81 Call Is Being 0280 2046 6f72 7761 7264 6564 6561 6374 6976 Forwardedeactiv 0290 6174 6564 3431 3620 556e 7375 7070 6f72 ated416 Unsuppor 02A0 7465 6420 5552 4920 5363 6865 6d65 7267 ted URI Schemerg 02B0 656e 6379 3330 3020 4d75 6c74 6970 6c65 ency300 Multiple 02C0 2043 686f 6963 6573 6d69 6d65 7373 6167 Choicesmimessag 02D0 6534 3233 2049 6e74 6572 7661 6c20 546f e423 Interval To 02E0 6f20 4272 6965 6672 6f6d 2d74 6167 3438 o Briefrom-tag48 02F0 3320 546f 6f20 4d61 6e79 2048 6f70 7363 3 Too Many Hopsc 0300 7470 6172 616c 6c65 6c34 3837 2052 6571 tparallel487 Req 0310 7565 7374 2054 6572 6d69 6e61 7465 6469 uest Terminatedi 0320 6765 7374 0d0a 613d 6f72 6965 6e74 3a6c gest..a=orient:l 0330 616e 6473 6361 7065 6e64 696e 674f 5054 andscapendingOPT 0340 494f 4e53 200d 0a41 6363 6570 742d 4c61 IONS ..Accept-La 0350 6e67 7561 6765 3a20 474d 5468 752c 200d nguage: GMThu, . 0360 0a43 6f6e 7465 6e74 2d44 6973 706f 7369 .Content-Disposi 0370 7469 6f6e 3a20 5365 7020 0d0a 5265 7175 tion: Sep ..Requ 0380 6573 742d 4469 7370 6f73 6974 696f 6e3a est-Disposition: 0390 204e 6f76 200d 0a50 726f 7879 2d41 7574 Nov ..Proxy-Aut SIPPING Working Group Expiration 11/30/02 Page 14 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 03A0 686f 7269 7a61 7469 6f6e 3a20 4f63 7420 horization: Oct 03B0 0d0a 4175 7468 656e 7469 6361 7469 6f6e ..Authenicatin 03C0 2d49 6e66 6f3a 2041 7567 2034 3033 2046 -Info: Aug 403 F 03D0 6f72 6269 6464 656e 6f72 6573 6f75 7263 orbiddenoresourc 03E0 6534 3038 2052 6571 7565 7374 2054 696d e408 Request Tim 03F0 656f 7574 6f6e 6535 3033 2053 6572 7669 eoutone503 Servi 0400 6365 2055 6e61 7661 696c 6162 6c65 0d0a ce Unavailable.. 0410 5072 6f78 792d 4175 7468 656e 7469 6361 Proxy-Authentica 0420 7465 3a20 4d61 7920 3338 3020 416c 7465 te: May 380 Alte 0430 726e 6174 6976 6520 5365 7276 6963 6534 rnative Service4 0440 3035 204d 6574 686f 6420 4e6f 7420 416c 05 Method Not Al 0450 6c6f 7765 6461 7574 682d 696e 7465 726c lowedauth-interl 0460 6561 7669 6e67 3d35 3133 204d 6573 7361 eaving=513 Messa 0470 6765 2054 6f6f 204c 6172 6765 3638 3720 ge Too Large687 0480 4469 616c 6f67 2054 6572 6d69 6e61 7465 Dialog Terminate 0490 6433 3032 204d 6f76 6564 2054 656d 706f d302 Moved Tempo 04A0 7261 7269 6c79 0d0a 436f 6e74 656e 742d rarily..Content- 04B0 456e 636f 6469 6e67 3a20 4665 6220 0d0a Encoding: Feb .. 04C0 436f 6e74 656e 742d 4c61 6e67 7561 6765 Content-Language 04D0 3a20 4d61 7220 3330 3120 4d6f 7665 6420 : Mar 301 Moved 04E0 5065 726d 616e 656e 746c 790d 0a61 3d6f Permanently..a=o 04F0 7269 656e 743a 706f 7274 7261 6974 6f2d rient:portraito- 0500 7461 6734 3032 2050 6179 6d65 6e74 2052 tag402 Payment R 0510 6571 7569 7265 6435 3031 204e 6f74 2049 equired501 Not I 0520 6d70 6c65 6d65 6e74 6564 3439 3120 5265 mplemented491 Re 0530 7175 6573 7420 5065 6e64 696e 6736 3036 quest Pending606 0540 204e 6f74 2041 6363 6570 7461 626c 6534 Not Acceptable4 0550 3933 2055 6e64 6563 6970 6865 7261 626c 93 Undecipherabl 0560 650d 0a61 3d74 7970 653a 6272 6f61 6463 e..a=type:broadc 0570 6173 7472 7565 3430 3620 4e6f 7420 4163 astrue406 Not Ac 0580 6365 7074 6162 6c65 3438 3220 4c6f 6f70 ceptable482 Loop 0590 2044 6574 6563 7465 646d 6f64 652d 6368 Detectedmode-ch 05A0 616e 6765 2d6e 6569 6768 626f 723d 3438 ange-neighbor=48 05B0 3920 4261 6420 4576 656e 746c 730d 0a6d 9 Bad Eventls..m 05C0 3d61 7070 6c69 6361 7469 6f6e 2035 3032 =application 502 05D0 2042 6164 2047 6174 6577 6179 6d6f 6465 Bad Gatewaymode 05E0 2d63 6861 6e67 652d 7065 7269 6f64 3d0d -change-period=. 05F0 0a61 3d6f 7269 656e 743a 7365 6173 6361 .a=orient:seasca 0600 7065 0d0a 4163 6365 7074 2d45 6e63 6f64 pe..Accept-Encod 0610 696e 673a 200d 0a61 3d6b 6579 2d6d 676d ing: ..a=key-mgm 0620 743a 4d49 4b45 590d 0a61 3d74 7970 653a t:MIKEY..a=type: 0630 6d6f 6465 7261 7465 6433 3035 2055 7365 moderated305 Use 0640 2050 726f 7879 3430 3420 4e6f 7420 466f Proxy404 Not Fo 0650 756e 640d 0a50 726f 7879 2d52 6571 7569 und..Proxy-Requi 0660 7265 3a20 0d0a 613d 7479 7065 3a72 6563 re: ..a=type:rec 0670 766f 6e6c 7975 6470 726f 7879 6d75 6c74 vonlyudproxymult 0680 6970 6172 7469 6d65 6f75 740d 0a61 3d74 ipartimeout..a=t 0690 7970 653a 6d65 6574 696e 670d 0a6b 3d70 ype:meeting..k=p 06A0 726f 6d70 743a 4d45 5353 4147 4520 0d0a rompt:MESSAGE .. 06B0 4d69 6e2d 4578 7069 7265 733a 200d 0a52 Min-Expires: ..R 06C0 6574 7279 2d41 6674 6572 3a20 0d0a 556e etry-After: ..Un 06D0 7375 7070 6f72 7465 643a 200d 0a49 6e2d supported: ..In- SIPPING Working Group Expiration 11/30/02 Page 15 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 06E0 5265 706c 792d 546f 3a20 3138 3220 51 75 Reply-To: 182 Qu 06F0 6575 6564 0d0a 416c 6572 742d 496e 666f eued..Alert-Info 0700 3a20 0d0a 613d 6672 616d 6572 6174 653a : ..a=framerate: 0710 0d0a 5573 6572 2d41 6765 6e74 3a20 756e ..User-Agent: un 0720 6b6e 6f77 6e6f 726d 616c 4341 4e43 454c knownormalCANCEL 0730 203b 7265 7472 792d 6166 7465 723d 0d0a ;retry-after=.. 0740 613d 6d61 7870 7469 6d65 3a34 3130 2047 a=maxptime:410 G 0750 6f6e 6575 6163 6861 6e6e 656c 733d 0d0a oneuachannels=.. 0760 5072 696f 7269 7479 3a20 0d0a 613d 6368 Priority: ..a=ch 0770 6172 7365 743a 0d0a 613d 7364 706c 616e arset:..a=sdplan 0780 673a 0d0a 613d 7175 616c 6974 793a 0d0a g:..a=quality:.. 0790 6d3d 636f 6e74 726f 6c20 0d0a 5265 706c m=control ..Repl 07A0 6163 6573 3a20 0d0a 5265 6665 722d 546f aces: ..Refer-To 07B0 3a20 6970 7365 632d 696b 6552 4546 4552 : ipsec-ikeREFER 07C0 203b 7472 616e 7370 6f72 743d 0d0a 613d ;transport=..a= 07D0 6b65 7977 6473 3a0d 0a6b 3d62 6173 6536 keywds:..k=base6 07E0 343a 3b72 6566 7265 7368 6572 3d0d 0a53 4:;refresher=..S 07F0 6572 7665 723a 200d 0a6b 3d63 6c65 6172 erver: ..k=clear 0800 3a0d 0a61 3d70 7469 6d65 3a0d 0a4d 696e :..a=ptime:..Min 0810 2d53 453a 200d 0a41 6363 6570 743a 203b -SE: ..Accept: ; 0820 7265 6365 6976 6564 3d3b 6475 7261 7469 received=;durati 0830 6f6e 3d0d 0a61 3d67 726f 7570 3a49 4e46 on=..a=group:INF 0840 4f20 0d0a 613d 666d 7470 3a0d 0a61 3d6c O ..a=fmtp:..a=l 0850 616e 673a 0d0a 613d 746f 6f6c 3a6d 6f64 ang:..a=tool:mod 0860 652d 7365 743d 0d0a 6d3d 6461 7461 2054 e-set=..m=data T 0870 4c53 756e 2c20 3b6d 6574 686f 643d 0d0a LSun, ;method=.. 0880 4461 7465 3a20 0d0a 613d 6d69 643a 0d0a Date: ..a=mid:.. 0890 613d 6361 743a 0d0a 6b3d 7572 693a 3b72 a=cat:..k=uri:;r 08A0 6561 736f 6e3d 6f70 6171 7565 3d3b 6d61 eason=opaque=;ma 08B0 6464 723d 6175 7473 3d3b 7474 6c3d 5765 ddr=auts=;ttl=We 08C0 642c 2053 6174 2c20 4d6f 6e2c 2054 7565 d, Sat, Mon, Tue 08D0 2c20 4672 692c 2063 7263 3d0d 0a7a 3d0d , Fri, crc=..z=. 08E0 0a72 3d0d 0a65 3d0d 0a75 3d0d 0a69 3d3b .r=..e=..u=..i=; 08F0 6964 3d3b 713d 7561 7336 3030 2042 7573 id=;q=uas600 Bus 0900 7920 4576 6572 7977 6865 7265 6a65 6374 y Everywhereject 0910 6564 3438 3020 5465 6d70 6f72 6172 696c ed480 Temporaril 0920 7920 556e 6176 6169 6c61 626c 650d 0a61 y Unavailable..a 0930 3d74 7970 653a 482e 3333 3230 3220 4163 =type:H.33202 Ac 0940 6365 7074 6564 0d0a 5375 6273 6372 6970 cepted..Subscrip 0950 7469 6f6e 2d53 7461 7465 3a20 4a75 6c20 tion-State: Jul 0960 3438 3620 4275 7379 2048 6572 6571 7569 486 Busy Herequi 0970 7265 640d 0a53 6573 7369 6f6e 2d45 7870 red..Session-Exp 0980 6972 6573 3a20 4a61 6e20 3430 3020 4261 ires: Jan 400 Ba 0990 6420 5265 7175 6573 7465 6c3a 0d0a 613d d Requestel:..a= 09A0 696e 6163 7469 7665 6174 7465 6e64 616e inactiveattendan 09B0 7463 700d 0a61 3d74 7970 653a 7465 7374 tcp..a=type:test 09C0 6f3d 0d0a 5265 636f 7264 2d52 6f75 7465 o=..Record-Route 09D0 3a20 0d0a 416c 6c6f 772d 4576 656e 7473 : ..Allow-Events 09E0 3a20 0d0a 613d 7365 6e64 6f6e 6c79 0d0a : ..a=sendonly.. 09F0 4576 656e 743a 2020 2020 0d0a 613d 7265 Event: ..a=re 0A00 6376 6f6e 6c79 0d0a 633d 494e 2049 5034 cvonly..c=IN IP4 0A10 200d 0a52 6561 736f 6e3a 200d 0a41 6c6c ..Reason: ..All SIPPING Working Group Expiration 11/30/02 Page 16 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 0A20 6f77 3a20 0d0a 5061 7468 3a20 3b75 7365 ow: ..Path: ;use 0A30 723d 6672 6f6d 3d6d 6563 683d 0d0a 623d r=from=mech=..b= 0A40 4354 2041 5320 3432 3020 4261 6420 4578 CT AS 420 Bad Ex 0A50 7465 6e73 696f 6e6f 6e2d 7265 6375 7273 tensionon-recurs 0A60 656e 642d 6f6e 6c79 0d0a 613d 7365 6e64 end-only..a=send 0A70 7265 6376 6964 656f 6374 6574 2d61 6c69 recvideoctet-ali 0A80 676e 3d35 3034 2053 6572 7665 7220 5469 gn=504 Server Ti 0A90 6d65 2d6f 7574 696d 6572 656e 6465 7273 me-outimerenders 0AA0 7061 7574 683d 512e 3835 3035 2056 6572 pauth=Q.8505 Ver 0AB0 7369 6f6e 204e 6f74 2053 7570 706f 7274 sion Not Support 0AC0 6564 6f6d 6169 6e3d 5355 4253 4352 4942 edomain=SUBSCRIB 0AD0 4520 3538 3020 5072 6563 6f6e 6469 7469 E 580 Preconditi 0AE0 6f6e 2046 6169 6c75 7265 7370 6f6e 7365 on Failuresponse 0AF0 3d34 3232 2053 6573 7369 6f6e 2054 696d =422 Session Tim 0B00 6572 2054 6f6f 2053 6d61 6c6c 6f63 616c er Too Smallocal 0B10 6970 7365 632d 6d61 6e64 6174 6f72 7934 ipsec-mandatory4 0B20 3133 2052 6571 7565 7374 2045 6e74 6974 13 Request Entit 0B30 7920 546f 6f20 4c61 7267 6532 650d 0a0d y Too Large2e... 0B40 0a50 2d4d 6564 6961 2d41 7574 686f 7269 .P-Media-Authori 0B50 7a61 7469 6f6e 3a20 4465 6320 7061 7468 zation: Dec path 0B60 616c 6661 696c 7572 656d 6f74 6572 6d69 alfailuremotermi 0B70 6e61 7465 6436 3033 2044 6563 6c69 6e65 nated603 Decline 0B80 7874 6e6f 6e63 653d 3138 3320 5365 7373 xtnonce=183 Sess 0B90 696f 6e20 5072 6f67 7265 7373 6970 733a ion Progressips: 0BA0 0d0a 5365 6375 7269 7479 2d4d 6563 6861 ..Security-Mecha 0BB0 6e69 736d 3a20 4a75 6e20 3438 3520 416d nism: Jun 485 Am 0BC0 6269 6775 6f75 7365 726e 616d 653d 6661 biguousername=fa 0BD0 6c73 6571 7565 6e74 6961 6c67 6f72 6974 lsequentialgorit 0BE0 686d 3d0d 0a57 5757 2d41 7574 6865 6e74 hm=..WWW-Authent 0BF0 6963 6174 653a 2041 7072 206e 6f2d 7175 icate: Apr no-qu 0C00 6575 654d 4435 2d73 6573 7369 6f6e 6f6e eueMD5-sessionon 0C10 6541 4d52 4547 4953 5445 5220 3430 3120 eAMREGISTER 401 0C20 556e 6175 7468 6f72 697a 6564 6175 6469 Unauthorizedaudi 0C30 6f70 7469 6f6e 616c 6572 740d 0a43 6f6e optionalert..Con 0C40 7465 6e74 2d4c 656e 6774 683a 2069 6e66 tent-Length: inf 0C50 6f0d 0a41 7574 686f 7269 7a61 7469 6f6e o..Authorization 0C60 3a20 6275 7369 6e65 7373 7072 6566 3d0d : businesspref=. 0C70 0a43 6f6e 7465 6e74 2d54 7970 653a 2052 .Content-Type: R 0C80 5450 2f41 5650 2053 4354 5052 4143 4b20 TP/AVP SCTPRACK 0C90 0d0a 633d 494e 2049 5036 2031 3830 2052 ..c=IN IP6 180 R 0CA0 696e 6769 6e67 3b6c 7265 6665 7265 616c inging;lrefereal 0CB0 6d3d 414b 4176 6f69 6365 2d6d 6169 6c31 m=AKAvoice-mail1 0CC0 3030 2054 7279 696e 6776 3d30 0d0a 6f3d 00 Tryingv=0..o= 0CD0 4e4f 5449 4659 2055 5044 4154 4520 0d0a NOTIFY UPDATE .. 0CE0 5375 7070 6f72 7465 643a 200d 0a52 6571 Supported: ..Req 0CF0 7569 7265 3a20 0d0a 613d 7274 706d 6170 uire: ..a=rtpmap 0D00 3a0d 0a45 7870 6972 6573 3a20 0d0a 6d3d :..Expires: ..m= 0D10 6175 6469 6f20 0d0a 6d3d 7669 6465 6f20 audio ..m=video 0D20 0d0a 613d 636f 6e66 3a0d 0a52 6f75 7465 ..a=conf:..Route 0D30 3a20 3b65 7870 6972 6573 3d0d 0a61 3d63 : ;expires=..a=c 0D40 7572 723a 0d0a 613d 6465 733a 0d0a 5241 urr:..a=des:..RA 0D50 636b 3a20 0d0a 5253 6571 3a20 6963 6f6e ck: ..RSeq: icon SIPPING Working Group Expiration 11/30/02 Page 17 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 0D60 633d 4259 4520 4469 6765 7374 2063 6e6f c=BYE Digest cno 0D70 6e63 653d 3130 3072 656c 7572 693d 716f nce=100reluri=qo 0D80 703d 0d0a 743d 0d0a 733d 5544 5071 6f73 p=..t=..s=UDPqos 0D90 786d 6c54 4350 3b63 6f6d 703d 7369 6763 xmlTCP;comp=sigc 0DA0 6f6d 7072 6563 6f6e 6469 7469 6f6e 6f6e ompreconditionon 0DB0 2d75 7267 656e 743b 6272 616e 6368 3d7a -urgent;branch=z 0DC0 3968 4734 624b 5349 502f 322e 302e 302e 9hG4bKSIP/2.0.0. 0DD0 302e 300d 0a4d 6178 2d46 6f72 7761 7264 0.0..Max-Forward 0DE0 733a 2041 6e6f 6e79 6d6f 7573 6970 3a49 s: Anonymousip:I 0DF0 4e56 4954 4520 0d0a 436f 6e74 6163 743a NVITE ..Contact: 0E00 200d 0a43 616c 6c2d 4944 3a20 3230 3020 ..Call-ID: 200 0E10 4f4b 0d0a 4353 6571 3a20 0d0a 4672 6f6d OK..CSeq: ..From 0E20 3a20 0d0a 5669 613a 200d 0a54 6f3a 203b : ..Via: ..To: ; 0E30 7461 673d tag= 6.Security Considerations This memo does not introduce any known security risk. 7. IANA Considerations None. 8. Author's Addresses Miguel A. Garcia Ericsson FIN-02420, Jorvas, Finland Tel: +358 9299 3553 e-mail: miguel.a.garcia@ericsson.com Carsten Bormann Universitaet Bremen TZI Postfach 330440 D-28334 Bremen, Germany Tel: +49 421 218 7024 e-mail: cabo@tzi.org Joerg Ott Universitaet Bremen TZI Bibliothekstr. 1 Bremen 28359, Germany Tel: +49.421.201-7028 e-mail: jo@tzi.uni-bremen.de Richard Price Roke Manor Research Ltd Romsey, Hants, SO51 0ZN, United Kingdom Tel: +44 1794 833681 e-mail: richard.price@roke.co.uk SIPPING Working Group Expiration 11/30/02 Page 18 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 Adam Roach dynamicsoft 5100 Tennyson Parkway, Suite 1200 Plano, TX 75024, USA e-mail: adam@dynamicsoft.com 9. Acknowledgements The authors would like to thank ... 10. References 10.1 Normative references 1. R. Price, H. Hannu, C. Bormann, J. Christoffersson, Z. Liu, J. Rosenberg, Signaling Compression (SigComp), draft-ietf-rohc- sigcomp-06.txt, May 2002, work in progress. 10.2 Informative references 2. J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler, Session Initiation Protocol, Request for Comments 3261, May 2002. 3. M. Garcia et al, 3GPP requirements on SIP, draft-sipping-garcia- 3gpp-reqs-03.txt, work in progress. 4. F. Yergeau, "UTF-8, a transformation format of ISO 10646," Request for Comments 2279, Internet Engineering Task Force, Jan. 1998. 5. J. Franks, P. Hallam-Baker, J. Hostetler, S. Lawrence, P. Leach, A. Luotonen, L. Stewart, HTTP Authentication: Basic and Digest Access Authentication, Request for Comments 2617, June 1999. 6. A. Vaha-Sipila, URLs for telephone calls, Request for Comments 2806, Internet Engineering Task Force, Apr. 2000. 7. S. Donovan, The SIP INFO Method, Request for Comments 2976, October 2000. 8. A. Roach, SIP-Specific Event Notification, Request for Comments 3265, May 2002. 9. J. Rosenberg, H. Schulzrinne, Reliability of Provisional Responses in SIP, Request for Comments 3262, May 2002. 10. J. Rosenberg, The Session Initiation Protocol UPDATE Method, draft-ietf-sip-update-02.txt, April 2002, work in progress. SIPPING Working Group Expiration 11/30/02 Page 19 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 11. G. Camarillo, W. Marshall, J. Rosenberg, Integration of Resource Management and SIP, draft-ietf-sip-manyfolks-resource-07.txt, April 2002, work in progress. 12. R. Sparks, The Refer Method, draft-sparks-sip-refer-split-00, April 2002, work in progress. 13. R. Mahy, B. Biggs, R. Dean, The SIP Replaces header, draft-ietf- sip-replaces-01.txt, April 2002, work in progress. 14. R. Sparks, Internet Media Types message/sip and message/sipfrag, draft-sparks-sip-mimetypes-03.txt, April 2002, work in progress. 15. D. Willis, B. Hoeneisen, SIP Extension for Registering Non- Adjacent Contacts, draft-willis-sip-path-05, work in progress. 16. H. Schulzrinne, D. Oran, G. Camarillo, The Reason Header Field for the Session Initiation Protocol, draft-ietf-sip-reason- 00.txt, April 2002, work in progress. 17. S. Donovan, J. Rosenberg, The SIP Session Timer, draft-ietf-sip- session-timer-08.txt, October 2001, work in progress. 18. A. Niemi, J. Arkko, V. Torvinen, HTTP Digest Authentication Using AKA, draft-ietf-sip-digest-aka-01, April 2002, work in progress. 19. J. Arkko, T. Haukka, S. Sen, L. Valerius, Security Mechanism Agreement for SIP Sessions, draft-ietf-sip-sec-agree-00.txt, April 2002, working progress. 20. B. Campbell, J. Rosenberg, D. Willis, R. Sparks, H. Schulzrinne, J. Lennox, C. Huitema, B. Aboba, D. Gurle, D. Oran, Session Initiation Protocol Extension for Instant Messaging, draft-ietf- sip-message-03, April 2002, work in progress. 21. W. Marshall, F. Andreasen, D. Evans, SIP Extensions for Media Authorization, draft-ietf-sip-call-auth-05.txt, May 2002, work in progress. 22. H. Schulzrinne, J. Rosenberg, SIP Caller Preferences and Callee Capabilities, draft-ietf-sip-callerprefs-04.txt, December 2001, work in progress. 23. G. Camarillo, Compressing the Session Initiation Protocol, draft-camarillo-sip-compression-00.txt, April 2002, work in progress. 24. M. Handley, V. Jacobson, C. Perkins, SDP: Session Description Protocol, draft-ietf-mmusic-sdp-new-07.txt, work in progress. SIPPING Working Group Expiration 11/30/02 Page 20 Garcia et. al. The static SIP/SDP dictionary for SigComp May 2002 25. J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler, Session Initiation Protocol, Request for Comments 3261, May 2002. 26. R. Price, H. Hannu, C. Bormann, J. Christoffersson, Z. Liu, J. Rosenberg, Signaling Compression (SigComp), draft-ietf-rohc- sigcomp-05.txt, March 2002, work in progress. 27. F. Yergeau, "UTF-8, a transformation format of ISO 10646," Request for Comments 2279, Internet Engineering Task Force, Jan. 1998. 28. J Sjoberg, M. Westerlund, A. Lakaniemi, Q. Xie, RTP payload format and file storage format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) audio codecs, draft- ietf-avt-rtp-amr-13.txt, January 2002, work in progress. 29. G. Camarillo, J. Holler, G. AP Eriksson, H. Schulzrinne, Grouping of media lines in SDP, draft-ietf-mmusic-fid-06.txt, February 2002, work in progress. 30. H. Schulzrinne, S. Petrack, RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals, RFC 2833, May 2000. 31. J. Arkko, E. Carrara, F. Lindholm, M. Naslund, K. Norrman, Key Management Extensions for SDP and RTSP, draft-ietf-mmusic-kmgmt- ext-04.txt, April 2002. 32. J. Arkko, E. Carrara, F. Lindholm, M. Naslund, K. Norrman, MIKEY: Multimedia Internet KEYing, draft-ietf-msec-mikey-01.txt April 2002. SIPPING Working Group Expiration 11/30/02 Page 21