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diff --git a/doc/rfc/rfc5112.txt b/doc/rfc/rfc5112.txt new file mode 100644 index 0000000..4cec082 --- /dev/null +++ b/doc/rfc/rfc5112.txt @@ -0,0 +1,1403 @@ + + + + + + +Network Working Group M. Garcia-Martin +Request for Comments: 5112 Nokia Siemens Networks +Category: Standards Track January 2008 + + + The Presence-Specific Static Dictionary + for Signaling Compression (Sigcomp) + +Status of This Memo + + This document specifies an Internet standards track protocol for the + Internet community, and requests discussion and suggestions for + improvements. Please refer to the current edition of the "Internet + Official Protocol Standards" (STD 1) for the standardization state + and status of this protocol. Distribution of this memo is unlimited. + +Abstract + + The Session Initiation Protocol (SIP) is a text-based protocol for + initiating and managing communication sessions. The protocol is + extended by the SIP-events notification framework to provide + subscriptions and notifications of SIP events. One example of such + event notification mechanism is presence, which is expressed in XML + documents called presence documents. SIP can be compressed by using + Signaling Compression (SigComp), which is enhanced by using the SIP/ + Session Description Protocol (SDP) dictionary to achieve better + compression rates. However, the SIP/SDP dictionary is not able to + increase the compression factor of (typically lengthy) presence + documents. This memo defines the presence-specific static dictionary + that SigComp can use in order to compress presence documents to + achieve higher efficiency. The dictionary is compression-algorithm + independent. + + + + + + + + + + + + + + + + + + + +Garcia-Martin Standards Track [Page 1] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + +Table of Contents + + 1. Introduction ....................................................2 + 2. Terminology .....................................................3 + 3. Design Considerations ...........................................3 + 4. Binary Representation of the Presence-Specific Static + Dictionary ......................................................5 + 5. Security Considerations ........................................12 + 6. Acknowledgements ...............................................12 + Appendix A. Input Strings to the Presence-Specific + Static Dictionary......................................13 + References ........................................................22 + Normative References ...........................................22 + Informative References .........................................22 + +1. Introduction + + The Session Initiation Protocol (SIP) [4] is extended by the + SIP-events framework [5] to provide subscriptions and notifications + of SIP events. One example of such an event-notification mechanism + is presence. The presence information is typically carried in + Extensible Markup Language (XML) [22] documents that are compliant + with a given XML schema [23]. The Presence Information Data Format + (PIDF) [8] defines the format for the basic presence document that + supplies presence information. Typically, PIDF is used in + combination with other extensions to provide a richer user + experience, among others: the Presence Data Model [10], Rich + Presence Extensions to PIDF (RPID) [11], Contact Information in PIDF + (CIPID) [12], the SIP Event Notification Extension for Resource Lists + [19] and the SIP User Agent Capability Extensions to PIDF [20], or + the Location Object in PIDF [16]. + + Typically, presence documents can contain large amounts of data. The + size of this data is dependent on the number of presentities that a + watcher is subscribed to and the amount of information supplied by + the presentity. This can impose a problem in environments where + resources are scarce (e.g., low bandwidth links with high latency) + and the presence service is offered at low or no cost. This is the + case, e.g., of some wireless networks and devices. It is reasonable + to try to minimize the impact of bringing the presence service to + wireless networks under these circumstances. + + Work has been done to mitigate the impact of transferring large + amounts of presence documents between endpoints. For example, the + Partial PIDF [15] reduces the amount of data transferred between the + endpoints. + + + + + +Garcia-Martin Standards Track [Page 2] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + On the other hand, the signaling compression mechanisms specified in + the SigComp framework (RFC 3320) [2] provide a multiple compression/ + decompression algorithm framework to compress and decompress + text-based protocols, such as SIP. When compression is used in SIP, + 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 previously stored state to compress + against. As the goal is to compress as much as possible, it seems + sensible to investigate a mechanism to boost the compression rate + from the first message. + + RFC 3485 [7] defines a static dictionary for SIP [4] and SDP [9]. + The dictionary is to be used in conjunction with SIP [4], SDP [9], + and SigComp [2]. The static SIP/SDP dictionary constitutes a SigComp + state that can be referenced in the first SIP message that the + compressor sends out. The dictionary boosts the compression of SIP + and SDP, but unfortunately does not have any effect in XML-based + presence documents. + + It sounds reasonable to define a presence-specific static dictionary + that can be used in conjunction with SIP and Sigcomp. This + dictionary can coexist with the static SIP/SDP dictionary defined in + RFC 3485 [7]. Sigcomp endpoints will initially announce the + availability of one or both dictionaries until the other end + acknowledges that it has received the announcement. + + Our initial simulations when developing this dictionary reveal that + once the current mitigation mechanisms are applied (e.g., Sigcomp, + partial notification, partial publication), a further compression + factor of 10% can be achieved when Sigcomp uses the presence-specific + static dictionary. + +2. Terminology + + The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", + "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this + document are to be interpreted as described in BCP 14, RFC 2119 [1] + and indicate requirement levels for compliant implementations. + +3. Design Considerations + + The presence-specific static dictionary is a collection of well-known + strings that appear in most of the presence documents used by SIP. + The dictionary is not a comprehensive list of reserved words, but it + includes many of the strings that appear in presence documents. + + + + + +Garcia-Martin Standards Track [Page 3] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + The presence static dictionary is unique and MAY be available in + SigComp implementations for SIP that support the presence service. + The dictionary is not intended to evolve as presence evolves. It is + defined once, and it 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. + + Appendix A contains the collection of strings that were contributed + to the presence static dictionary. The appendix also includes + references to the documents that define those strings. + + While this appendix is of an informative nature, Section 4 gives the + normative binary form of the presence-specific static dictionary. + This is the dictionary that is included in the SigComp + implementation. This dictionary has been formed from the collection + of individual dictionaries given in Appendix A. + + The input set is a collection of UTF-8 [6] encoded character strings. + The appendix provides a table where each row represents an entry. + Each entry contains the string that actually occurs in the + dictionary, its priority (see below), its offset from the first octet + and its length (both in hexadecimal), and one or more references that + elucidate why this string is expected to occur in presence documents. + + Note: Length in this document always refers to octets. + + The columns in the table 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. + + Pr: + indicates the priority of this string within the dictionary. Some + compression algorithms, such as DEFLATE [3], offer an increased + efficiency when the most commonly used strings are located at the + bottom of the dictionary. To facilitate generating a dictionary + that has the most frequently occurring strings farther down at the + bottom, we have decided to allocate a priority to each string in + the dictionary. Priorities range from 1 to 5. A low value in the + priority column (e.g., 1) indicates that we believe there is a + high probability of finding the string in a presence document. A + high value in the priority column (e.g., 5) indicates lower + probability of finding the string in a presence document. This is + typically the case for less frequent extensions or optional, + infrequent XML elements or attributes. + + + + +Garcia-Martin Standards Track [Page 4] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + Off: + indicates the hexadecimal offset of the entry with respect to the + first octet in the dictionary. Note that several strings in the + collections can share space in the dictionary if they exhibit + suitable common substrings. + + Len: + the length of the string in octets in hexadecimal. + + References: + contains one or more references to the specification and the + section within the specification where the string is defined. + Note that the strings stored in the dictionary are case sensitive. + (Again, the strings do not include the quotes ("), they are just + shown here to increase the readability). + + There are a few design considerations that require a bit more + explanation: + + o Due to the fact that most compression algorithms have a break-even + point around three or four characters, we have selected those + static strings of characters that consist of four or more + characters. + + o When a string appears as an XML element in an XML document, it is + typically surrounded by the '<' and '>' signs, such as in '<foo>'. + It would have been natural to include the '<' and '>' signs of the + element in each input string. However, we made the decision to + omit the '<' and '>' signs because then we can easily reuse the + same string for start-tags (e.g., <foo>), start-tags that contain + attributes (e.g., <foo attr="myattr">), empty-element tags (e.g., + <foo/>), and end-tags (e.g., </foo>). + + o Whenever there is an enumerated string, the string does not + contain quotes, following the same pattern as any other input + string. + + o In a few cases, we have decided to split a string that appears a + few times into a few substrings. This is the case of Uniform + Resource Names (URNs) in the IETF address space, because this + allows the dictionary to reuse the same substring in various URN + strings. + +4. Binary Representation of the Presence-Specific Static Dictionary + + This section contains the binary form of the presence-specific static + dictionary that is loaded into SigComp as a state. + + + + +Garcia-Martin Standards Track [Page 5] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + The binary SigComp dictionary is composed of two parts, the + concatenation of which serves as the state value of the state item: A + string subset, which contains all strings in the contributing + collections as a substring (roughly ordered such that strings with + low priority numbers occur at the end), and a table subset, which + contains pairs of length and offset values for all the strings in the + contributing collections. In each of these pairs, the length is + stored as a one-byte value, and the offset is stored as a two-byte + value that has had 1024 added to the offset (this allows direct + referencing from the stored value if the dictionary state has been + loaded at address 1024). + + The intention is that all compression algorithms will be able to use + the (or part of the) string subset, and some compression methods, + notably those that are related to the LZ78 family, will also use the + table in order to form an initial set of tokens for that compression + method. The text below therefore gives examples for referencing both + the table subset and the string subset of the dictionary state item. + + As defined in Section 3.3.3 in the Signaling Compression + specification [2], a SigComp state is characterized by a certain set + of information. For the presence-specific static dictionary, the + information in the following table, Table 2, fully characterizes the + state item. + + Note that the string subset of the dictionary can be accessed using: + + STATE-ACCESS (%ps, 6, 0, 0x0955, %sa, 0), + + and the table subset can be accessed using: + + STATE-ACCESS (%ps, 6, 0x0955, 0x043E, %sa, 0), + + where %ps points to Universal Decompressor Virtual Machine (UDVM) + memory containing + + 0xd942297d0bb3 + + and %sa is the desired destination address in UDVM memory with UDVM + byte copying rules applied. + + + + + + + + + + + +Garcia-Martin Standards Track [Page 6] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + If only a subset of the dictionary up to a specific priority is + desired (e.g., to save UDVM space), the values for the third and + forth operand in these STATE-ACCESS instructions can be changed to: + + +---------------+------------+------------+------------+------------+ + | Priorities | String | String | Table | Table | + | desired | offset | length | offset | length | + +---------------+------------+------------+------------+------------+ + | 1 only | 0x07AB | 0x01AA | 0x0955 | 0x0039 | + | 1..2 | 0x06BE | 0x0297 | 0x0955 | 0x0066 | + | 1..3 | 0x035A | 0x05FB | 0x0955 | 0x013E | + | 1..4 | 0x0254 | 0x0701 | 0x0955 | 0x01AA | + | 1..5 | 0x0000 | 0x0955 | 0x0955 | 0x043E | + +---------------+------------+------------+------------+------------+ + + Table 1: Priority Table + + The state item consists of the following elements: + + +----------------------+--------------------------------------------+ + | Name | Value | + +----------------------+--------------------------------------------+ + | state_identifier | 0xd942297d0bb38fc01d6741d6b3b48157ac8e1be0 | + | state_length | 0x0D93 | + | state_address | 0 (not relevant for the dictionary) | + | state_instruction | 0 (not relevant for the dictionary) | + | minimum_access_lengt | 6 | + | h | | + | state_value | Representation of the table of Figure 1 | + +----------------------+--------------------------------------------+ + + Table 2: State Item Table + + 0000 636f 6e76 656e 7469 6f6e 2d63 656e 7465 convention-cente + 0010 726d 696e 6174 6564 6570 7265 7373 6564 rminatedepressed + 0020 6973 6775 7374 6564 696e 6475 7374 7269 isgustedindustri + 0030 616c 6173 742d 696e 7075 743d 6875 6d69 alast-input=humi + 0040 6c69 6174 6564 6f6d 6169 6e3d 6175 746f liatedomain=auto + 0050 6d6f 6269 6c65 6375 7269 6f75 7370 6972 mobilecuriouspir + 0060 6974 732d 494e 4450 7365 6e64 2d6f 6e6c its-INDPsend-onl + 0070 7970 6174 6865 6174 6572 6573 746c 6573 ypatheaterestles + 0080 736c 6565 7079 696e 2d70 6572 736f 6e61 sleepyin-persona + 0090 6c6f 6e65 6c79 706c 6179 6675 6c6f 7765 lonelyplayfulowe + 00A0 7274 6861 6e6e 6f79 6564 756e 636f 6d66 rthannoyeduncomf + 00B0 6f72 7461 626c 6578 636c 7564 653d 636f ortablexclude=co + 00C0 6e66 7573 6564 7661 6361 7469 6f6e 636c nfusedvacationcl + 00D0 7562 7573 2d73 7461 7469 6f6e 6169 7263 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6d70 ssistantimestamp + 0760 726f 7669 6465 642d 6279 3a63 6970 6964 rovided-by:cipid + 0770 662d 6675 6c6c 5374 6174 653d 6163 746f f-fullState=acto + 0780 7265 6d6f 7665 6462 7573 696e 6573 7365 removedbusinesse + 0790 7269 6f75 7365 6c3d 3a73 6368 656d 6178 riousel=:schemax + 07A0 7661 6c75 653d 3a72 7069 6475 726e 3a69 value=:rpidurn:i + 07B0 6574 663a 7061 7261 6d73 3a78 6d6c 2d70 etf:params:xml-p + 07C0 6174 6368 2d6f 7073 6563 2d61 6772 6565 atch-opsec-agree + 07D0 6172 6c79 2d73 6573 7369 6f6e 2d70 6174 arly-session-pat + 07E0 6963 6970 6174 696f 6e2d 7468 652d 7068 icipation-the-ph + 07F0 6f6e 6574 776f 726b 2d61 7661 696c 6162 onetwork-availab + 0800 696c 6974 7970 6572 666f 726d 616e 6365 ilityperformance + 0810 7863 6974 6564 7072 6563 6f6e 6469 7469 xcitedpreconditi + 0820 6f6e 6f72 6573 6f75 7263 652d 7072 696f onoresource-prio + 0830 7269 7479 3d66 616c 7365 7276 6963 652d rity=falservice- + 0840 636c 6173 7372 6f6f 6d75 7374 556e 6465 classroomustUnde + 0850 7273 7461 6e64 6973 706c 6179 2d6e 616d rstandisplay-nam + 0860 653d 696e 7374 616e 6365 7874 656e 7369 e=instancextensi + 0870 6f6e 732d 6269 6e64 696e 6773 6470 2d61 ons-bindingsdp-a + 0880 6e61 7474 656e 6461 6e74 7275 653a 7069 nattendantrue:pi + 0890 6466 2d64 6966 6672 7573 7472 6174 6564 df-diffrustrated + 08A0 7570 6c65 7870 6972 6174 696f 6e3d 636f uplexpiration=co + 08B0 6e74 6163 7469 7669 7469 6573 686f 7070 ntactivitieshopp + 08C0 696e 672d 6172 6561 736f 6e3d 6170 706f ing-areason=appo + 08D0 696e 746d 656e 7469 7479 3d61 7373 6f63 intmentity=assoc + 08E0 6961 7465 6e63 6f64 696e 673d 696e 7465 iatencoding=inte + 08F0 7265 7374 6564 6576 6361 7073 7461 7475 restedevcapstatu + 0900 733d 6163 7469 7665 7273 696f 6e3d 7769 s=activersion=wi + 0910 6e66 6f70 656e 6469 6e67 696e 2d74 7261 nfopendingin-tra + 0920 6e73 6974 7570 6c65 686f 7370 6974 616c nsituplehospital + 0930 616e 673d 3c3f 786d 6c6e 733d 7369 636b ang=<?xmlns=sick + 0940 7072 6573 656e 6365 5554 462d 383f 3e63 presenceUTF-8?>c + 0950 6c6f 7365 6405 0d34 080d 0609 0ce3 070d losed..4........ + 0960 4806 0d36 130b ab05 0965 070c d408 0d40 H..6.....e.....@ + 0970 050d 2305 0c35 070c ae05 0d2f 0608 b905 ..#..5...../.... + 0980 072b 040d 1206 0d4f 090c 2c04 0c89 040a .+.....O..,..... + 0990 f609 0b57 0b0b 0508 0ada 060a da06 0489 ...W............ + 09A0 050b a604 0b94 0605 0507 0b3f 0e0b ba07 ...........?.... + 09B0 0b98 0a0c 8d09 0b6d 090c 8e0e 0c48 0a0c .......m.....H.. + 09C0 b21d 0956 0d0c 3806 07ba 0b08 b90b 07ec ...V..8......... + 09D0 060d 020a 0a46 0408 f406 0b6a 040a b60c .....F.....j.... + 09E0 0c55 080a 3104 0a92 080a 1b05 0ab1 0408 .U..1........... + + + +Garcia-Martin Standards Track [Page 10] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + 09F0 c005 0a27 050a a705 0aac 040a ba04 07dc ...'............ + 0A00 0508 ad0a 0929 0a08 a705 0a56 050b 4d07 .....).....V..M. + 0A10 092a 0d09 a70b 07a9 0609 c60b 0b5f 0c09 .*..........._.. + 0A20 df0b 09e0 0607 cb0c 0a0b 0909 2008 0a97 ............ ... + 0A30 0709 e007 0cfb 060a 8c0e 097f 0a09 870b ................ + 0A40 0c71 0a0c 7106 0793 050a 6604 0867 0409 .q..q.....f..g.. + 0A50 ba08 0920 0a0b 7205 0a72 0807 b30b 0ac5 ... ..r..r...... + 0A60 0709 f207 0889 0408 ad08 0abe 060c 9f0b ................ + 0A70 06d0 0e08 2608 0a9f 0709 c60a 0c69 0708 ....&........i.. + 0A80 8505 0b7c 070a 390c 0934 070a 2109 087d ...|..9..4..!..} + 0A90 070c f50b 0ca3 1406 a60d 08b2 0c07 2a0c ..............*. + 0AA0 08b3 0407 5607 091a 0407 5207 0740 0507 ....V.....R..@.. + 0AB0 4d07 0b80 0607 4716 0691 080c 6210 09cf M.....G.....b... + 0AC0 1007 dd09 0af6 0906 fc0c 0b17 0707 3904 ..............9. + 0AD0 06f8 0709 a106 068d 0507 2104 0a55 090a ..........!..U.. + 0AE0 d20c 0acf 1306 c80a 08ec 070d 060b 080c ................ + 0AF0 140b d512 07be 0d07 d116 0801 140b f106 ................ + 0B00 05b4 0704 5609 0417 0c0a ea09 041f 0a07 ....V........... + 0B10 7e0b 076a 070c 0f0b 07a0 0a0c 9606 0528 ~..j...........( + 0B20 060a 7d05 061f 0705 8b0a 043c 0605 ae04 ..}........<.... + 0B30 0650 090a e206 05f6 0707 fd09 0b33 0a0c .P...........3.. + 0B40 ec0a 0a83 0706 5406 0490 0405 3f05 0a92 ......T.....?... + 0B50 0707 8a07 08cc 0809 ea07 0496 0506 1008 ................ + 0B60 0798 0a06 f108 0479 090b 2207 0b8e 070b .......y.."..... + 0B70 4604 0d3c 0604 8008 0712 0909 4a07 04e3 F..<........J... + 0B80 0705 8405 097a 0506 0109 0912 0409 520d .....z........R. + 0B90 04aa 0d08 5608 04dc 0705 9205 050c 0a04 ....V........... + 0BA0 4c04 062c 0b04 d104 0624 090c 4004 04ce L..,.....$..@... + 0BB0 0c08 c111 0400 0507 340a 066a 080d 2805 ........4..j..(. + 0BC0 061a 0a04 2807 0afe 0604 ff08 0994 0705 ....(........... + 0BD0 7610 0898 0605 f006 0903 1009 0309 081e v............... + 0BE0 0a08 3c06 099b 0d0c bb07 06e3 0509 cc06 ..<............. + 0BF0 0a15 0704 7305 0673 0d06 7305 0845 080a ....s..s..s..E.. + 0C00 2909 0a40 0507 1a0a 071a 090b 4f09 0cdb )..@........O... + 0C10 0605 ea06 05de 0a04 0e0a 0b0e 0906 8608 ................ + 0C20 0560 0b07 7409 054f 0804 f007 0990 0608 .`..t..O........ + 0C30 700a 0c21 0705 6f0b 0ccc 0407 9007 04ea p..!..o......... + 0C40 0a08 3304 0634 0906 dc04 0640 0705 2e04 ..3..4.....@.... + 0C50 0648 0607 8707 0568 0a0d 1a07 0445 0705 .H.....h.....E.. + 0C60 0508 050e 0805 5808 04b6 1009 f804 063c ......X........< + 0C70 0709 bc0c 06d0 0c0b e704 0644 040a 310b ...........D..1. + 0C80 0c05 0406 2811 075a 070c c507 05a0 0c09 ....(..Z........ + 0C90 6f08 0cbb 080a 7609 0816 0808 6906 05e4 o.....v.....i... + 0CA0 0904 8607 0538 060a 4f08 04c6 0f08 f40b .....8..O....... + 0CB0 0431 070a 0407 08a1 0d0c 5506 05c0 0605 .1........U..... + 0CC0 ba05 0541 080b 8708 0489 0405 350c 0a5a ...A........5..Z + 0CD0 0904 6809 049c 0a06 ba06 070d 0507 2509 ..h...........%. + 0CE0 0b9d 090a 6906 0a6c 0406 3804 0630 070d ....i..l..8..0.. + + + +Garcia-Martin Standards Track [Page 11] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + 0CF0 1308 084c 0506 1506 0450 0a07 0406 07f7 ...L.....P...... + 0D00 0408 490f 0889 0c09 3f05 0681 1108 dc0d ..I.....?....... + 0D10 045c 1106 5a05 0d0e 0605 d804 08d3 0605 .\e..Z.......... + 0D20 d207 057d 0605 cc07 08d6 0506 0b07 05a7 ...}............ + 0D30 0505 1608 051a 0905 4606 05c6 0609 310d ........F.....1. + 0D40 0bcf 0908 6208 04f8 0408 540a 067f 0404 ....b.....T..... + 0D50 710c 0c16 0405 2e08 0b3f 110c 2308 0c7b q........?..#..{ + 0D60 090b c707 07f6 050b 3b09 0875 090c 8109 ........;..u.... + 0D70 06e9 0b09 b007 0522 0704 a307 06c2 0705 ......."........ + 0D80 9905 0606 0505 fc04 09c3 0406 4c08 04be ............L... + 0D90 090b 2a ..* + + Figure 1: Binary Representation of the Dictionary + +5. Security Considerations + + This document defines a presence-specific static dictionary for the + Sigcomp framework [2]. Therefore, the security considerations of RFC + 3320 [2] apply. This memo does not introduce any known additional + security risk. + +6. Acknowledgements + + The author would like to thank Miraj Mostafa, Pekka Pessi, and + Catalin Ionescu for their persistent convincing arguments to + demonstrate the benefit of this dictionary. Thanks to Carsten + Bormann and Adam Roach for providing assistance with the software + that automatically generates the binary dictionary. Adam Roach, + Cristian Constantin, and Avshalom Houri, and Krisztian Kiss reviewed + the document and provided helpful comments. + + + + + + + + + + + + + + + + + + + + + +Garcia-Martin Standards Track [Page 12] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + +Appendix A. Input Strings to the Presence-Specific Static Dictionary + + String Pr Off Len References + ===================================== == ==== ==== ========== + "<?xml" 1 0934 0005 + "version=" 1 0906 0008 + "encoding=" 1 08E3 0009 + "UTF-8?>" 1 0948 0007 + "xmlns=" 1 0936 0006 + "urn:ietf:params:xml" 1 07AB 0013 [8] 4.4 + [10] 5.1 + [11] 5 + [12] 5 + [13] 5 + [14] 9 + [15] 7 + [17] 6 + [18] 7 + [19] 5.1 + [20] 3.2, 3.3 + ":pidf" 1 0565 0005 [8] 4.4 + [10] 5.1 + [11] 5 + [12] 5 + [13] 5 + [20] 3.2, 3.3 + "entity=" 1 08D4 0007 [8] 4.4, [15] 7 + "presence" 1 0940 0008 [8] 4.4 + [20] 3.2.14 + "tuple" 1 0923 0005 [8] 4.4 + "note" 2 06F6 0004 [8] 4.4 + [10] 5.1 + [11] 5 + [13] 5 + "contact" 1 08AE 0007 [8] 4.4 + "timestamp" 2 0757 0009 [8] 4.4 + [10] 5.1 + "status" 1 04B9 0006 [8] 4.4 + "basic" 1 032B 0005 [8] 4.4 + [13] 5 + [21] + "open" 1 0912 0004 [8] 4.4, [21] + "closed" 1 094F 0006 [8] 4.4, [21] + "priority=" 1 082C 0009 [8] 4.4 + "mustUnderstand" 3 0848 000E [8] 4.4 + "true" 1 0889 0004 [8] 4.4 + [16] 2.2.5 + [18] 7 + + + +Garcia-Martin Standards Track [Page 13] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + [19] 5.1 + [20] 3.2, 3.3 + "false" 1 0835 0005 [8] 4.4 + [16] 2.2.5 + [18] 7 + [19] 5.1 + [20] 3.2, 3.3 + ":data-model" 2 0705 000B [10] 5.1 + "deviceID" 2 06DA 0008 [10] 5.1 + "device" 2 06DA 0006 [10] 5.1 + "person" 2 0089 0006 [10] 5.1 + ":rpid" 2 07A6 0005 [11] 5 + "activities" 3 08B2 000A [11] 5 + "unknown" 5 016F 0007 [11] 5 + "appointment" 5 08CC 000B [11] 5 + "away" 5 0234 0004 [11] 5 + "breakfast" 5 02DC 0009 [11] 5 + "busy" 5 0240 0004 [11] 5 + "dinner" 5 0387 0006 [11] 5 + "holiday" 5 0168 0007 [11] 5 + "in-transit" 5 091A 000A [11] 5 + "looking-for-work" 5 05F8 0010 [11] 5 + "meal" 5 023C 0004 [11] 5 + "meeting" 5 05BC 0007 [11] 5 + "on-the-phone" 5 07E7 000C [11] 5 + "performance" 5 0805 000B [11] 5 + "permanent-absence" 5 035A 0011 [11] 5 + "playing" 5 01A0 0007 [11] 5 + "presentation" 5 056F 000C [11] 5 + "shopping" 5 08BB 0008 [11] 5 + "sleeping" 5 0676 0008 [11] 5 + "spectator" 5 0416 0009 [11] 5 + "steering" 5 0469 0008 [11] 5 + "travel" 5 064F 0006 [11] 5 + "vacation" 5 00C6 0008 [11] 5 + "working" 5 0604 0007 [11] 5 + "worship" 5 04A1 0007 [11] 5 + "other" 3 0656 0005 [11] 5 + "class" 3 074D 0005 [11] 5 + [20] 3.2 + "afraid" 5 01C0 0006 [11] 5 + "amazed" 5 01BA 0006 [11] 5 + "angry" 5 0141 0005 [11] 5 + "annoyed" 5 00A3 0007 [11] 5 + "anxious" 5 02C2 0007 [11] 5 + "ashamed" 5 0199 0007 [11] 5 + "bored" 5 0206 0005 [11] 5 + "brave" 5 01FC 0005 [11] 5 + + + +Garcia-Martin Standards Track [Page 14] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + "calm" 5 05C3 0004 [11] 5 + "cold" 5 024C 0004 [11] 5 + "confused" 5 00BE 0008 [11] 5 + "contented" 5 072A 0009 [11] 5 + "cranky" 5 01B4 0006 [11] 5 + "curious" 5 0056 0007 [11] 5 + "depressed" 5 0017 0009 [11] 5 + "disappointed" 5 06EA 000C [11] 5 + "disgusted" 5 001F 0009 [11] 5 + "distracted" 5 037E 000A [11] 5 + "embarrassed" 5 036A 000B [11] 5 + "excited" 5 080F 0007 [11] 5 + "flirtatious" 5 03A0 000B [11] 5 + "frustrated" 5 0896 000A [11] 5 + "grumpy" 5 0128 0006 [11] 5 + "guilty" 5 067D 0006 [11] 5 + "happy" 5 021F 0005 [11] 5 + "humbled" 5 018B 0007 [11] 5 + "humiliated" 5 003C 000A [11] 5 + "hungry" 5 01AE 0006 [11] 5 + "hurt" 5 0250 0004 [11] 5 + "impressed" 5 06E2 0009 [11] 5 + "in_awe" 5 01F6 0006 [11] 5 + "in_love" 5 03FD 0007 [11] 5 + "indignant" 5 0733 0009 [11] 5 + "interested" 5 08EC 000A [11] 5 + "invincible" 5 0683 000A [11] 5 + "jealous" 5 0254 0007 [11] 5 + "lonely" 5 0090 0006 [11] 5 + "mean" 5 013F 0004 [11] 5 + "moody" 5 0692 0005 [11] 5 + "nervous" 5 038A 0007 [11] 5 + "neutral" 5 04CC 0007 [11] 5 + "offended" 5 05EA 0008 [11] 5 + "playful" 5 0096 0007 [11] 5 + "proud" 5 0210 0005 [11] 5 + "relieved" 5 0398 0008 [11] 5 + "remorseful" 5 02F1 000A [11] 5 + "restless" 5 0079 0008 [11] 5 + "sarcastic" 5 0722 0009 [11] 5 + "serious" 5 078E 0007 [11] 5 + "shocked" 5 0746 0007 [11] 5 + "sick" 5 093C 0004 [11] 5 + "sleepy" 5 0080 0006 [11] 5 + "stressed" 5 0312 0008 [11] 5 + "surprised" 5 054A 0009 [11] 5 + "thirsty" 5 00E3 0007 [11] 5 + "worried" 5 0184 0007 [11] 5 + + + +Garcia-Martin Standards Track [Page 15] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + "mood" 3 0692 0004 [11] 5 + "place-is" 3 061B 0008 [11] 5 + "audio" 3 06B1 0005 [11] 5 + [20] 3.2 + "noisy" 5 057A 0005 [11] 5 + "quiet" 5 0201 0005 [11] 5 + "video" 3 06A7 0005 [11] 5 + [20] 3.2 + "toobright" 5 0512 0009 [11] 5 + "dark" 5 0552 0004 [11] 5 + "text" 3 03DC 0004 [11] 5 + [20] 3.2 + "uncomfortable" 5 00AA 000D [11] 5 + "inappropriate" 5 0456 000D [11] 5 + "place-type" 3 04A7 000A [11] 5 + "aircraft" 5 00DC 0008 [11] 5 + "airport" 5 0192 0007 [11] 5 + "arena" 5 010C 0005 [11] 5 + "automobile" 5 004C 000A [11] 5 + "bank" 5 022C 0004 [11] 5 + "bus-station" 5 00D1 000B [11] 5 + "cafe" 5 0224 0004 [11] 5 + "classroom" 5 0840 0009 [11] 5 + "club" 5 00CE 0004 [11] 5 + "construction" 5 04C1 000C [11] 5 + "convention-center" 5 0000 0011 [11] 5 + "cycle" 5 0334 0005 [11] 5 + "government" 5 026A 000A [11] 5 + "hospital" 5 0928 0008 [11] 5 + "hotel" 5 021A 0005 [11] 5 + "industrial" 5 0028 000A [11] 5 + "library" 5 06FE 0007 [11] 5 + "office" 5 00FF 0006 [11] 5 + "outdoors" 5 0594 0008 [11] 5 + "parking" 5 0176 0007 [11] 5 + "place-of-worship" 5 0498 0010 [11] 5 + "prison" 5 01F0 0006 [11] 5 + "public" 5 0503 0006 [11] 5 + "public-transport" 5 0503 0010 [11] 5 + "residence" 5 041E 0009 [11] 5 + "restaurant" 5 043C 000A [11] 5 + "school" 5 059B 0006 [11] 5 + "shopping-area" 5 08BB 000D [11] 5 + "stadium" 5 02E3 0007 [11] 5 + "store" 5 05CC 0005 [11] 5 + "street" 5 0615 0006 [11] 5 + "theater" 5 0073 0007 [11] 5 + "train" 5 0273 0005 [11] 5 + + + +Garcia-Martin Standards Track [Page 16] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + "train-station" 5 0273 000D [11] 5 + "truck" 5 0445 0005 [11] 5 + "underway" 5 0629 0008 [11] 5 + "warehouse" 5 0640 0009 [11] 5 + "water" 5 031A 0005 [11] 5 + "watercraft" 5 031A 000A [11] 5 + "privacy" 3 0639 0007 [11] 5 + [20] 3.2.17 + "relationship" 3 0534 000C [11] 5 + "assistant" 5 074F 0009 [11] 5 + "associate" 5 08DB 0009 [11] 5 + "family" 5 01EA 0006 [11] 5 + "friend" 5 01DE 0006 [11] 5 + "self" 5 0390 0004 [11] 5 + "supervisor" 5 0433 000A [11] 5 + "courier" 5 00EA 0007 [11] 5 + "electronic" 5 070E 000A [11] 5 + "freight" 5 0138 0007 [11] 5 + "in-person" 5 0086 0009 [11] 5 + "postal" 5 01E4 0006 [11] 5 + "service-class" 3 0838 000D [11] 5 + "sphere" 3 03BA 0006 [11] 5 + "home" 5 0631 0004 [11] 5 + "work" 5 0244 0004 [11] 5 + "status-icon" 3 04B9 000B [11] 5 + "time-offset" 3 03EC 000B [11] 5 + "description=" 5 02D0 000C [11] 5 + "user-input" 3 0646 000A [11] 5 + "active" 3 0902 0006 [11] 5 + [17] 6 + [19] 5.1 + [21] + "idle" 3 04F4 0004 [11] 5 + "idle-threshold=" 5 04F4 000F [11] 5 + "last-input=" 5 0031 000B [11] 5 + ":cipid" 3 076A 0006 [12] 5 + "card" 3 06B6 0004 [12] 5 + "display-name" 3 0855 000C [12] 5 + "homepage" 3 0631 0008 [12] 5 + "icon" 3 04C0 0004 [12] 5 + "sound" 3 0627 0005 [12] 5 + ":timed-status" 4 04B2 000D [13] 5 + "timed-status" 4 04B3 000C [13] 5 + "from=" 3 06AC 0005 [10] 5.1 + [11] 5 + [13] 5 + [18] 7 + "until=" 4 0347 0006 [10] 5.1 + + + +Garcia-Martin Standards Track [Page 17] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + [11] 5 + [13] 5 + ":schema" 2 0798 0007 [14] 9 + ":xml-patch-ops" 2 07BA 000E [14] 9 + "replace" 2 073F 0007 [14] 9 + "remove" 2 0105 0006 [14] 9 + "sel=" 2 0794 0004 [14] 9 + "pos=" 3 06BA 0004 [14] 9 + "type=" 3 04AD 0005 [14] 9, [18] 7 + "before" 4 028D 0006 [14] 9 + "after" 4 0321 0005 [14] 9 + "both" 4 0655 0004 [14] 9 + ":pidf-diff" 2 088D 000A [15] 7 + "pidf-diff" 2 088E 0009 [15] 7 + "pidf-full" 2 076D 0009 [15] 7 + ":geopriv10" 3 0529 000A [16] 2.2.5 + ":basicPolicy" 4 032A 000C [16] 2.2.5 + "geopriv" 3 052A 0007 [16] 2.2.5 + "location-info" 3 05A7 000D [16] 2.2.5 + "usage-rules" 3 03A9 000B [16] 2.2.5 + "method" 3 05C6 0006 [16] 2.2.5 + "provided-by" 3 075F 000B [16] 2.2.5 + "retransmission-allowed" 4 0291 0016 [16] 2.2.5 + "retention-expiry" 4 05CF 0010 [16] 2.2.5 + "external-ruleset" 4 03DD 0010 [16] 2.2.5 + "note-well" 4 06F6 0009 [16] 2.2.5 + ":civicLoc" 4 02FC 0009 [16] 2.2.5 + "civicAddress" 4 0717 000C [16] 2.2.5 + "country" 4 0339 0007 [16] 2.2.5 + ":watcherinfo" 3 05DF 000C [17] 6 + "watcherinfo" 3 05E0 000B [17] 6 + "state=" 3 03CB 0006 [17] 6 + [19] 5.1 + "full" 4 02F8 0004 [17] 6 [20] 3.2.12 + "partial" 4 05A1 0007 [17] 6 + "watcher-list" 3 060B 000C [17] 6 + "resource=" 3 0520 0009 [17] 6 + "package=" 3 0697 0008 [17] 6, [18] 7 + "watcher" 3 05E0 0007 [17] 6 + "display-name=" 5 0855 000D [17] 6 + "status=" 3 08FB 0007 [17] 6 + "pending" 5 0913 0007 [17] 6 + [19] 5.1 + "waiting" 5 0122 0007 [17] 6 + "terminated" 5 000E 000A [17] 6 + [19] 5.1 + [21] + "event=" 3 068C 0006 [17] 6 + + + +Garcia-Martin Standards Track [Page 18] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + "subscribe" 5 0286 0009 [17] 6 + "approved" 5 0160 0008 [17] 6 + "deactivated" 5 0374 000B [17] 6 + "provation" 5 014F 0009 [17] 6 + "rejected" 5 00F0 0008 [17] 6 + "timeout" 5 0590 0007 [17] 6 + "giveup" 5 0470 0006 [17] 6 + "noresource" 5 0821 000A [17] 6 + "expiration=" 4 08A3 000B [17] 6 + "duration-subscribed=" 4 02A6 0014 [17] 6 + "lang=" 1 092F 0005 [10] 5.1 + [16] 2.2.5 + [17] 6 + [19] 5.1 + ":simple-filter" 3 057F 000E [18] 7 + "filter-set" 3 0587 000A [18] 7 + "ns-bindings" 3 0871 000B [18] 7 + "ns-binding" 3 0871 000A [18] 7 + "filter" 3 0393 0006 [18] 7 + "prefix=" 5 012E 0007 [18] 7 + "urn=" 5 0248 0004 [18] 7 + "what" 4 0356 0004 [18] 7 + "trigger" 4 051A 0007 [18] 7 + "uri=" 4 0352 0004 [18] 7 + [19] 5.1 + "domain=" 5 0045 0007 [18] 7 + "remove=" 5 0105 0007 [18] 7 + "enabled=" 5 010E 0008 [18] 7 + "include=" 5 0158 0008 [18] 7 + "exclude=" 5 00B6 0008 [18] 7 + "changed" 4 0340 0007 [18] 7 + "added" 4 034D 0005 [18] 7 + "removed" 4 0780 0007 [18] 7 + ":rlmi" 3 0666 0005 [19] 5.1 + "list" 3 0467 0004 [19] 5.1 + "name" 3 05BA 0004 [19] 5.1 + "resource" 3 0520 0008 [19] 5.1 + "fullState=" 3 0772 000A [19] 5.1 + "cid=" 5 0228 0004 [19] 5.1 + "instance" 4 0862 0008 [19] 5.1 + "reason=" 5 08C5 0007 [19] 5.1 + ":caps" 3 0672 0005 [20] 3.2, 3.3 + "servcaps" 3 03B3 0008 [20] 3.2 + "application" 3 06C5 000B [20] 3.2 + "control" 3 05F2 0007 [20] 3.2 + "message" 3 0489 0007 [20] 3.2 + "type" 3 04AD 0004 [20] 3.2 + "automata" 3 06BE 0008 [20] 3.2 + + + +Garcia-Martin Standards Track [Page 19] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + "duplex" 3 089F 0006 [20] 3.2 + "description" 3 02D0 000B [20] 3.2, 3.3 + [21] + "event-packages" 3 0426 000E [20] 3.2 + "priority" 3 069F 0008 [20] 3.2, 3.3 + "methods" 3 05C6 0007 [20] 3.2 + "extensions" 3 0869 000A [20] 3.2 + "schemes" 3 0485 0007 [20] 3.2 + "actor" 3 077C 0005 [20] 3.2 + "isfocus" 3 0621 0007 [20] 3.2 + "languages" 3 047D 0009 [20] 3.2 + "supported" 4 06D2 0009 [20] 3.2, 3.3 + "notsupported" 4 06CF 000C [20] 3.2, 3.3 + "business" 5 0787 0008 [20] 3.2.11 + "personal" 5 0089 0008 [20] 3.2.11 + "half" 5 0135 0004 [20] 3.2.12 + "receive-only" 5 065A 000C [20] 3.2.12 + "send-only" 5 0068 0009 [20] 3.2.12 + "lowerthan" 5 009C 0009 [20] 3.2, 3.3 + "higherthan" 5 02BA 000A [20] 3.2, 3.3 + "equals" 5 030D 0006 [20] 3.2, 3.3 + "range" 5 0325 0005 [20] 3.2, 3.3 + "maxvalue=" 5 079D 0009 [20] 3.2, 3.3 + "minvalue=" 5 0669 0009 [20] 3.2, 3.3 + "value=" 5 066C 0006 [20] 3.2, 3.3 + "max=" 5 0238 0004 [20] 3.2, 3.3 + "min=" 5 0230 0004 [20] 3.2, 3.3 + "devcaps" 3 08F5 0007 [20] 3.3 + "mobility" 5 044C 0008 [20] 3.3 + "fixed" 5 0215 0005 [20] 3.3.2 + "mobile" 5 0050 0006 [20] 3.3.2 + "conference" 5 0304 000A [20] 3.2.14 + "dialog" 5 03F7 0006 [20] 3.2.14 + "kplm" 5 0449 0004 [20] 3.2.14 + "message-summary" 5 0489 000F [20] 3.2.14 + "poc-settings" 5 053F 000C [20] 3.2.14 + "refer" 5 0281 0005 [20] 3.2.14 + "Siemens-RTP-Stats" 5 04DC 0011 [20] 3.2.14 + "spirits-INDPs" 5 005C 000D [20] 3.2.14 + "spirits-user-prog" 5 025A 0011 [20] 3.2.14 + "winfo" 5 090E 0005 [20] 3.2.14 + "CANCEL" 5 01D8 0006 [20] 3.2.16 + "INFO" 5 04D3 0004 [20] 3.2.16 + "INVITE" 5 01D2 0006 [20] 3.2.16 + "MESSAGE" 5 017D 0007 [20] 3.2.16 + "NOTIFY" 5 01CC 0006 [20] 3.2.16 + "OPTIONS" 5 04D6 0007 [20] 3.2.16 + "PRACK" 5 020B 0005 [20] 3.2.16 + + + +Garcia-Martin Standards Track [Page 20] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + "PUBLISH" 5 01A7 0007 [20] 3.2.16 + "REFER" 5 0116 0005 [20] 3.2.16 + "REGISTER" 5 011A 0008 [20] 3.2.16 + "SUBSCRIBE" 5 0146 0009 [20] 3.2.16 + "UPDATE" 5 01C6 0006 [20] 3.2.16 + "100rel" 5 0531 0006 [20] 3.2.17 + "early-session" 5 07CF 000D [20] 3.2.17 + "eventlist" 5 0462 0009 [20] 3.2.17 + "histinfo" 5 00F8 0008 [20] 3.2.17 + "join" 5 0454 0004 [20] 3.2.17 + "norefersub" 5 027F 000A [20] 3.2.17 + "path" 5 0071 0004 [20] 3.2.17 + "precondition" 5 0816 000C [20] 3.2.17 + "pref" 5 012E 0004 [20] 3.2.17 + "replaces" 5 073F 0008 [20] 3.2.17 + "resource-priority" 5 0823 0011 [20] 3.2.17 + "sdp-anat" 5 087B 0008 [20] 3.2.17 + "sec-agree" 5 07C7 0009 [20] 3.2.17 + "tdialog" 5 03F6 0007 [20] 3.2.17 + "timer" 5 073B 0005 [20] 3.2.17 + "principal" 5 0475 0009 [20] 3.2.19 + "attendant" 5 0881 0009 [20] 3.2.19 + "msg-taker" 5 02E9 0009 [20] 3.2.19 + "information" 5 05B0 000B [20] 3.2.19 + "urn:oma:xml:prs:pidf:oma-pres" 3 0556 001D [21] + "service-description" 4 02C8 0013 [21] + "service-id" 4 04EC 000A [21] + "version" 4 0906 0007 [21] + "willingness" 4 040C 000B [21] + "session-paticipation" 4 07D5 0014 [21] + "registration-state" 4 03BE 0012 [21] + "barring-state" 4 03D1 000D [21] + "overriding-willingness" 4 0401 0016 [21] + "network-availability" 4 07F1 0014 [21] + + Figure 2: Input Strings + + + + + + + + + + + + + + + +Garcia-Martin Standards Track [Page 21] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + +References + +Normative References + + [1] Bradner, S., "Key words for use in RFCs to Indicate Requirement + Levels", BCP 14, RFC 2119, March 1997. + + [2] Price, R., Bormann, C., Christoffersson, J., Hannu, H., Liu, + Z., and J. Rosenberg, "Signaling Compression (SigComp)", RFC + 3320, January 2003. + +Informative References + + [3] Deutsch, P., "DEFLATE Compressed Data Format Specification + version 1.3", RFC 1951, May 1996. + + [4] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., + Peterson, J., Sparks, R., Handley, M., and E. Schooler, "SIP: + Session Initiation Protocol", RFC 3261, June 2002. + + [5] Roach, A., "Session Initiation Protocol (SIP)-Specific Event + Notification", RFC 3265, June 2002. + + [6] Yergeau, F., "UTF-8, a transformation format of ISO 10646", STD + 63, RFC 3629, November 2003. + + [7] Garcia-Martin, M., Bormann, C., Ott, J., Price, R., and A. + Roach, "The Session Initiation Protocol (SIP) and Session + Description Protocol (SDP) Static Dictionary for Signaling + Compression (SigComp)", RFC 3485, February 2003. + + [8] Sugano, H., Fujimoto, S., Klyne, G., Bateman, A., Carr, W., and + J. Peterson, "Presence Information Data Format (PIDF)", RFC + 3863, August 2004. + + [9] Handley, M., Jacobson, V., and C. Perkins, "SDP: Session + Description Protocol", RFC 4566, July 2006. + + [10] Rosenberg, J., "A Data Model for Presence", RFC 4479, July + 2006. + + [11] Schulzrinne, H., Gurbani, V., Kyzivat, P., and J. Rosenberg, + "RPID: Rich Presence Extensions to the Presence Information + Data Format (PIDF)", RFC 4480, July 2006. + + [12] Schulzrinne, H., "CIPID: Contact Information for the Presence + Information Data Format", RFC 4482, July 2006. + + + + +Garcia-Martin Standards Track [Page 22] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + + [13] Schulzrinne, H., "Timed Presence Extensions to the Presence + Information Data Format (PIDF) to Indicate Status Information + for Past and Future Time Intervals", RFC 4481, July 2006. + + [14] Urpalainen, J., "An Extensible Markup Language (XML) Patch + Operations Framework Utilizing XML Path Language (XPath) + Selectors", Work in Progress, March 2006. + + [15] Lonnfors, M.,Leppanen, E., Khartabil, H., and J. Urpalainen, + "Presence Information Data format (PIDF) Extension for Partial + Presence", Work in Progress, November 2006. + + [16] Peterson, J., "A Presence-based GEOPRIV Location Object + Format", RFC 4119, December 2005. + + [17] Rosenberg, J., "An Extensible Markup Language (XML) Based + Format for Watcher Information", RFC 3858, August 2004. + + [18] Khartabil, H., Leppanen, E., Lonnfors, M., and J. Costa- + Requena, "An Extensible Markup Language (XML)-Based Format for + Event Notification Filtering", RFC 4661, September 2006. + + [19] Roach, A., Campbell, B., and J. Rosenberg, "A Session + Initiation Protocol (SIP) Event Notification Extension for + Resource Lists", RFC 4662, August 2006. + + [20] Lonnfors, M. and K. Kiss, "Session Initiation Protocol (SIP) + User Agent Capability Extension to Presence Information Data + Format (PIDF)", Work in Progress, July 2006. + + [21] Open Mobile Alliance, OMA., "OMA Presence Simple V1.0.1, + Presence Information Data Format PIDF Schema Description", + November 2006. + + [22] Paoli, J., Maler, E., Yergeau, F., Sperberg-McQueen, C., and T. + Bray, "Extensible Markup Language (XML) 1.0 (Fourth Edition)", + World Wide Web Consortium Recommendation REC-xml-20060816, + August 2006, <http://www.w3.org/TR/2006/REC-xml-20060816>. + + [23] Fallside, D. and P. Walmsley, "XML Schema Part 0: Primer Second + Edition", World Wide Web Consortium Recommendation REC- + xmlschema-0-20041028, October 2004, + <http://www.w3.org/TR/2004/REC-xmlschema-0-20041028>. + + + + + + + + +Garcia-Martin Standards Track [Page 23] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + +Author's Address + + Miguel A. Garcia-Martin + Nokia Siemens Networks + P.O.Box 6 + Nokia Siemens Networks, FIN 02022 + Finland + + EMail: miguel.garcia@nsn.com + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +Garcia-Martin Standards Track [Page 24] + +RFC 5112 Presence Dictionary for SIGCOMP January 2008 + + +Full Copyright Statement + + Copyright (C) The IETF Trust (2008). + + This document is subject to the rights, licenses and restrictions + contained in BCP 78, and except as set forth therein, the authors + retain all their rights. + + This document and the information contained herein are provided on an + "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS + OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND + THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF + THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED + WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + +Intellectual Property + + The IETF takes no position regarding the validity or scope of any + Intellectual Property Rights or other rights that might be claimed to + pertain to the implementation or use of the technology described in + this document or the extent to which any license under such rights + might or might not be available; nor does it represent that it has + made any independent effort to identify any such rights. Information + on the procedures with respect to rights in RFC documents can be + found in BCP 78 and BCP 79. + + Copies of IPR disclosures made to the IETF Secretariat and any + assurances of licenses to be made available, or the result of an + attempt made to obtain a general license or permission for the use of + such proprietary rights by implementers or users of this + specification can be obtained from the IETF on-line IPR repository at + http://www.ietf.org/ipr. + + The IETF invites any interested party to bring to its attention any + copyrights, patents or patent applications, or other proprietary + rights that may cover technology that may be required to implement + this standard. Please address the information to the IETF at + ietf-ipr@ietf.org. + + + + + + + + + + + + +Garcia-Martin Standards Track [Page 25] + |