E. Guy, Ed. Internet-Draft TruPhone Intended status: Informational October 5, 2008 Expires: April 8, 2009 IANA Considerations for IAX: Inter-Asterisk eXchange Version 2 draft-guy-iaxiana-00 Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. This document may not be modified, and derivative works of it may not be created. 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 to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on April 8, 2009. Guy Expires April 8, 2009 [Page 1] Internet-Draft IANA IAX Considerations October 2008 Abstract This document establishes the IANA registries for IAX, the Inter- Asterisk eXchange protocol, an application-layer control and media protocol for creating, modifying, and terminating multimedia sessions over Internet Protocol (IP) networks. IAX was developed by the open source community for the Asterisk PBX and is targeted primarily at Voice over Internet Protocol (VoIP) call control, but it can be used with streaming video or any other type of multimedia. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4 2.1. Meta Command . . . . . . . . . . . . . . . . . . . . . . . 4 2.2. Frame Types . . . . . . . . . . . . . . . . . . . . . . . 4 2.3. Control Frame Subclass . . . . . . . . . . . . . . . . . . 5 2.4. IAX Control Frames . . . . . . . . . . . . . . . . . . . . 7 2.5. HTML Command Subclasses . . . . . . . . . . . . . . . . . 9 2.6. Information Elements . . . . . . . . . . . . . . . . . . . 9 2.7. Authentication Methods . . . . . . . . . . . . . . . . . . 12 2.8. Dialplan Status Flags . . . . . . . . . . . . . . . . . . 13 2.9. Calling Presentation . . . . . . . . . . . . . . . . . . . 13 2.10. Calling Type of Number (CALLINGTON) . . . . . . . . . . . 14 2.11. IAX Transit Network Identification . . . . . . . . . . . . 15 2.12. IAX Type of Network . . . . . . . . . . . . . . . . . . . 16 2.13. Cause Codes . . . . . . . . . . . . . . . . . . . . . . . 16 2.14. Encryption Methods . . . . . . . . . . . . . . . . . . . . 19 2.15. Media Formats . . . . . . . . . . . . . . . . . . . . . . 20 3. Security Considerations . . . . . . . . . . . . . . . . . . . 22 4. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 23 5. Normative References . . . . . . . . . . . . . . . . . . . . . 24 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 25 Intellectual Property and Copyright Statements . . . . . . . . . . 26 Guy Expires April 8, 2009 [Page 2] Internet-Draft IANA IAX Considerations October 2008 1. Introduction IAX (Inter-Asterisk eXchange) is an "all in one" protocol for handling multimedia in IP networks. It combines both control and media services in the same protocol. In addition, IAX uses a single UDP data stream on a static port greatly simplifying Network Address Translation (NAT) gateway traversal, eliminating the need for other protocols to work around NAT, and simplifying network and firewall management. IAX employs a compact encoding which decreases bandwidth usage and is well suited for Internet telephony service. In addition, its open nature permits new payload types additions needed to support additional services. This document specifies and provides the initial values for the creation of the IAX-related IANA registries as per [RFC5226]. Guy Expires April 8, 2009 [Page 3] Internet-Draft IANA IAX Considerations October 2008 2. IANA Considerations The IAX protocol, as defined in [IAX], defines 15 namespaces that require registration. These namespaces are described below. Each of these namespaces utilize an 'Expert Review' for extension. Documentation of new values is not mandated as RFCs. The expert review should be guided by a few common sense considerations. For example, new values should not be specific to a country, region, organization, or company; they should be well- defined and widely recognized. 2.1. Meta Command Registry Name: IAX Meta Commands Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.1.3.2 of [IAX]. Valid Range: 0x01-x7F. Display format: hex. The following table specifies the Initial Assignments of Meta Command values: +------+-----------------+------------------------------------------+ | TYPE | Name | Description | +------+-----------------+------------------------------------------+ | 0x01 | Trunk Meta | Indicates that frame is a trunk meta | | | Frame | frame. | +------+-----------------+------------------------------------------+ 2.2. Frame Types Registry Name: IAX Frame Types Required Information for New Values: Name, description, and relevant security considerations, if any. In addition, the definition and description of subclasses. Description: See Section 8.2 of [IAX]. Valid Range: 0x01-xFF. Display format: hex. Guy Expires April 8, 2009 [Page 4] Internet-Draft IANA IAX Considerations October 2008 The following table specifies the Initial Assignments of Frame Type Values: +------+-------------+--------------------------+-------------------+ | TYPE | Description | Subclass Description | Data Description | +------+-------------+--------------------------+-------------------+ | 0x01 | DTMF | 0-9, A-D, *, # | Undefined | | | | | | | 0x02 | Voice | Audio Compression Format | Data | | | | | | | 0x03 | Video | Video Compression Format | Data | | | | | | | 0x04 | Control | See Control Frame | Varies with | | | | Subclass | subclass | | | | | | | 0x05 | Null | Undefined | Undefined | | | | | | | 0x06 | IAX Control | See IAX Protocol | Information | | | | Messages | Elements | | | | | | | 0x07 | Text | Always 0 | Raw Text | | | | | | | 0x08 | Image | Image Compression Format | Raw image | | | | | | | 0x09 | HTML | See HTML Frame Types | Message Specific | | | | | | | 0x0A | Comfort | Level in -dBov of | None | | | Noise | comfort noise | | +------+-------------+--------------------------+-------------------+ 2.3. Control Frame Subclass Registry Name: IAX Control Frame Subclass Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.3 of [IAX]. Valid Range: 0x00-x7F. Display format: hex. Guy Expires April 8, 2009 [Page 5] Internet-Draft IANA IAX Considerations October 2008 The following table specifies the Initial Assignments of Control Frame Subclasses: +-------------+---------------+-------------------------------------+ | VALUE | Name | Description | +-------------+---------------+-------------------------------------+ | 0x01 | Hangup | The call has been hungup at the | | | | remote end. | | | | | | 0x02 | Reserved | Reserved for future use | | | | | | 0x03 | Ringing | Remote end is ringing (ringback) | | | | | | 0x04 | Answer | Remote end has answered | | | | | | 0x05 | Busy | Remote end is busy | | | | | | 0x06 | Reserved | Reserved for future use | | | | | | 0x07 | Reserved | Reserved for future use | | | | | | 0x08 | Congestion | The call is congested. | | | | | | 0x09 | Flash Hook | Flash hook | | | | | | 0x0a | Reserved | Reserved for future use | | | | | | 0x0b | Option | Device-specific options are being | | | | transmitted | | | | | | 0x0c | Key Radio | Key Radio | | | | | | 0x0d | Unkey Radio | Unkey Radio | | | | | | 0x0e | Call Progress | Call is in progress | | | | | | 0x0f | Call | Call is proceeding | | | Proceeding | | | | | | | 0x10 | Hold | Call is placed on hold | | | | | | 0x11 | Unhold | Call is taken off hold | +-------------+---------------+-------------------------------------+ Guy Expires April 8, 2009 [Page 6] Internet-Draft IANA IAX Considerations October 2008 2.4. IAX Control Frames Registry Name: IAX Control Frame Subclass Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.4 of [IAX]. Valid Range: 0x01-x7F. Display format: hex. The following table specifies the Initial Assignments of IAX Control Frame values: +------+-----------+-----------------------------------------+ | Hex | Name | Description | +------+-----------+-----------------------------------------+ | 0x01 | NEW | Initiate a new call | | | | | | 0x02 | PING | Ping request | | | | | | 0x03 | PONG | Ping or poke reply | | | | | | 0x04 | ACK | Explicit acknowledgment | | | | | | 0x05 | HANGUP | Initiate call tear-down | | | | | | 0x06 | REJECT | Reject a call | | | | | | 0x07 | ACCEPT | Accept a call | | | | | | 0x08 | AUTHREQ | Authentication request | | | | | | 0x09 | AUTHREP | Authentication reply | | | | | | 0x0a | INVAL | Invalid message | | | | | | 0x0b | LAGRQ | Lag request | | | | | | 0x0c | LAGRP | Lag reply | | | | | | 0x0d | REGREQ | Registration request | | | | | | 0x0e | REGAUTH | Registration authentication | | | | | | 0x0f | REGACK | Registration acknowledgement | Guy Expires April 8, 2009 [Page 7] Internet-Draft IANA IAX Considerations October 2008 | 0x10 | REGREJ | Registration reject | | | | | | 0x11 | REGREL | Registration release | | | | | | 0x12 | VNAK | Video/Voice retransmit request | | | | | | 0x13 | DPREQ | Dialplan request | | | | | | 0x14 | DPREP | Dialplan reply | | | | | | 0x15 | DIAL | Dial | | | | | | 0x16 | TXREQ | Transfer request | | | | | | 0x17 | TXCNT | Transfer connect | | | | | | 0x18 | TXACC | Transfer accept | | | | | | 0x19 | TXREADY | Transfer ready | | | | | | 0x1a | TXREL | Transfer release | | | | | | 0x1b | TXREJ | Transfer reject | | | | | | 0x1c | QUELCH | Halt audio/video [media] transmission | | | | | | 0x1d | UNQUELCH | Resume audio/video [media] transmission | | | | | | 0x1e | POKE | Poke request | | | | | | 0x1f | Reserved | Reserved for future use | | | | | | 0x20 | MWI | Message waiting indication | | | | | | 0x21 | UNSUPPORT | Unsupported message | | | | | | 0x22 | TRANSFER | Remote transfer request | | | | | | 0x23 | Reserved | Reserved for future use | | | | | | 0x24 | Reserved | Reserved for future use | | | | | | 0x25 | Reserved | Reserved for future use | +------+-----------+-----------------------------------------+ Guy Expires April 8, 2009 [Page 8] Internet-Draft IANA IAX Considerations October 2008 2.5. HTML Command Subclasses Registry Name: IAX HTML Command Subclasses Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.2 of [IAX]. Valid Range: 0x01-x7F. Display format: hex. The following table specifies the Initial Assignments of IAX HTML Command Subclasses: +--------+----------------------------+ | NUMBER | DESCRIPTION | +--------+----------------------------+ | 0x01 | Sending a URL | | | | | 0x02 | Data frame | | | | | 0x04 | Beginning frame | | | | | 0x08 | End frame | | | | | 0x10 | Load is complete | | | | | 0x11 | Peer does not support HTML | | | | | 0x12 | Link URL | | | | | 0x13 | Unlink URL | | | | | 0x14 | Reject Link URL | +--------+----------------------------+ 2.6. Information Elements Registry Name: IAX Information Elements Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6 of [IAX]. Valid Range: 0x01-xFF. Guy Expires April 8, 2009 [Page 9] Internet-Draft IANA IAX Considerations October 2008 Display format: hex. The following table specifies the Initial Assignments of Information Element Definitions +------+----------------+-------------------------------------------+ | HEX | NAME | DESCRIPTION | +------+----------------+-------------------------------------------+ | HEX | NAME | DESCRIPTION | | | | | | 0x01 | CALLED NUMBER | Number/extension being called | | | | | | 0x02 | CALLING NUMBER | Calling number | | | | | | 0x03 | CALLING ANI | Calling number ANI for billing | | | | | | 0x04 | CALLING NAME | Name of caller | | | | | | 0x05 | CALLED CONTEXT | Context for number | | | | | | 0x06 | USERNAME | Username (peer or user) for | | | | authentication | | | | | | 0x07 | PASSWORD | Password for authentication | | | | | | 0x08 | CAPABILITY | Actual CODEC capability | | | | | | 0x09 | FORMAT | Desired CODEC format | | | | | | 0x0a | LANGUAGE | Desired language | | | | | | 0x0b | VERSION | Protocol version | | | | | | 0x0c | ADSICPE | CPE ADSI capability | | | | | | 0x0d | DNID | Originally dialed DNID | | | | | | 0x0e | AUTHMETHODS | Authentication method(s) | | | | | | 0x0f | CHALLENGE | Challenge data for MD5/RSA | | | | | | 0x10 | MD5 RESULT | MD5 challenge result | | | | | | 0x11 | RSA RESULT | RSA challenge result | | | | | | 0x12 | APPARENT ADDR | Apparent address of peer | | | | | | 0x13 | REFRESH | When to refresh registration | Guy Expires April 8, 2009 [Page 10] Internet-Draft IANA IAX Considerations October 2008 | 0x14 | DPSTATUS | Dialplan status | | | | | | 0x15 | CALLNO | Call number of peer | | | | | | 0x16 | CAUSE | Cause | | | | | | 0x17 | IAX UNKNOWN | Unknown IAX command | | | | | | 0x18 | MSGCOUNT | How many messages waiting | | | | | | 0x19 | AUTOANSWER | Request auto-answering | | | | | | 0x1a | MUSICONHOLD | Request musiconhold with QUELCH | | | | | | 0x1b | TRANSFERID | Transfer Request Identifier | | | | | | 0x1c | RDNIS | Referring DNIS | | | | | | 0x1d | Reserved | Reserved for future use | | | | | | 0x1e | Reserved | Reserved for future use | | | | | | 0x1f | DATETIME | Date/Time | | | | | | 0x20 | Reserved | Reserved for future use | | | | | | 0x21 | Reserved | Reserved for future use | | | | | | 0x22 | Reserved | Reserved for future use | | | | | | 0x23 | Reserved | Reserved for future use | | | | | | 0x24 | Reserved | Reserved for future use | | | | | | 0x25 | Reserved | Reserved for future use | | | | | | 0x26 | CALLINGPRES | Calling presentation | | | | | | 0x27 | CALLINGTON | Calling type of number | | | | | | 0x28 | CALLINGTNS | Calling transit network select | | | | | | 0x29 | SAMPLINGRATE | Supported sampling rates | | | | | | 0x2a | CAUSECODE | Hangup cause | | | | | | 0x2b | ENCRYPTION | Encryption format | | | | | Guy Expires April 8, 2009 [Page 11] Internet-Draft IANA IAX Considerations October 2008 | 0x2c | ENCKEY | Reserved for future Use | | | | | | 0x2d | CODEC PREFS | CODEC Negotiation | | | | | | 0x2e | RR JITTER | Received jitter, as in rfc3550 | | | | | | 0x2f | RR LOSS | Received loss, as in rfc3550 | | | | | | 0x30 | RR PKTS | Received frames | | | | | | 0x31 | RR DELAY | Max playout delay for received frames in | | | | ms | | | | | | 0x32 | RR DROPPED | Dropped frames (presumably by jitter | | | | buffer) | | | | | | 0x33 | RR OOO | Frames received Out of Order | | | | | | 0x34 | OSPTOKEN | OSP Token Block | +------+----------------+-------------------------------------------+ Table 1: Information Element Definitions 2.7. Authentication Methods Registry Name: IAX Authentication Methods Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.13 of [IAX]. Valid Range: 0x0001-xFFFF. Display format: hex. The following table specifies the initial assignments of IAX Authentication Methods: +--------+--------------------------+ | METHOD | DESCRIPTION | +--------+--------------------------+ | 0x0001 | Reserved (was Plaintext) | | | | | 0x0002 | MD5 | | | | | 0x0004 | RSA | +--------+--------------------------+ Guy Expires April 8, 2009 [Page 12] Internet-Draft IANA IAX Considerations October 2008 2.8. Dialplan Status Flags Registry Name: IAX Dialplan Status Flags Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.19 of [IAX]. Valid Range: 0x0001-xFFFF. Display format: hex. The following table specifies the initial assignments of IAX dialplan status flags: +--------+------------------------------+ | FLAG | DESCRIPTION | +--------+------------------------------+ | 0x0001 | Exists | | | | | 0x0002 | Can exist | | | | | 0x0004 | Non-existent | | | | | 0x4000 | Retain dialtone (ignorepat) | | | | | 0x8000 | More digits may match number | +--------+------------------------------+ 2.9. Calling Presentation Registry Name: IAX Calling Presentation Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.29 of [IAX]. Valid Range: 0x00-xFF. Display format: hex. Guy Expires April 8, 2009 [Page 13] Internet-Draft IANA IAX Considerations October 2008 The following table specifies the initial assignments of calling presentation values: +------+--------------------------------------+ | FLAG | PRESENTATION | +------+--------------------------------------+ | 0x00 | Allowed user/number not screened | | | | | 0x01 | Allowed user/number passed screen | | | | | 0x02 | Allowed user/number failed screen | | | | | 0x03 | Allowed network number | | | | | 0x20 | Prohibited user/number not screened | | | | | 0x21 | Prohibited user/number passed screen | | | | | 0x22 | Prohibited user/number failed screen | | | | | 0x23 | Prohibited network number | | | | | 0x43 | Number not available | +------+--------------------------------------+ NOTE: The values in this table are derived from Q.931, however, future values may be from other sources. 2.10. Calling Type of Number (CALLINGTON) Registry Name: IAX Calling Type of Number Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.30 of [IAX]. Valid Range: 0x00-xFF. Display format: hex. Guy Expires April 8, 2009 [Page 14] Internet-Draft IANA IAX Considerations October 2008 The following table specifies the initial assignments of valid calling type of number values: +-------+-------------------------+ | VALUE | DESCRIPTION | +-------+-------------------------+ | 0x00 | Unknown | | | | | 0x10 | International Number | | | | | 0x20 | National Number | | | | | 0x30 | Network Specific Number | | | | | 0x40 | Subscriber Number | | | | | 0x60 | Abbreviated Number | | | | | 0x70 | Reserved for extension | +-------+-------------------------+ NOTE: The values in this table are derived from Q.931, however, future values may be from other sources. 2.11. IAX Transit Network Identification Registry Name: IAX Transit Network Identification Plan Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.31 of [IAX]. Valid Range: 0000-1111 (four bits). Display format: binary. The following table specifies the initial assignments of IAX Calling Type of Number values: +------+----------------------------------+ | BITS | DESCRIPTION | +------+----------------------------------+ | 0000 | Unknown | | | | | 0001 | Caller Identification Code | | | | Guy Expires April 8, 2009 [Page 15] Internet-Draft IANA IAX Considerations October 2008 | 0011 | Data Network Identification Code | +------+----------------------------------+ NOTE: The values in this table are derived from Q.931, however, future values may be from other sources. 2.12. IAX Type of Network Registry Name: IAX Type of Network Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.30 of [IAX]. Valid Range: 000-111 (three bits). Display format: binary. The following table specifies the initial assignments of IAX Calling Type of Network values: +------+--------------------------------------+ | BITS | DESCRIPTION | +------+--------------------------------------+ | 000 | User Specified | | | | | 010 | National Network Identification | | | | | 011 | International Network Identification | +------+--------------------------------------+ NOTE: The values in this table are derived from Q.931, however, future values may be from other sources. 2.13. Cause Codes Registry Name: IAX Cause Codes Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.30 of [IAX]. Valid Range: 1-255. Display format: decimal. Guy Expires April 8, 2009 [Page 16] Internet-Draft IANA IAX Considerations October 2008 The following table specifies the initial assignments of IAX Cause Code values: +--------+----------------------------------------------------------+ | NUMBER | CAUSE | +--------+----------------------------------------------------------+ | 1 | Unassigned/unallocated number | | | | | 2 | No route to specified transit network | | | | | 3 | No route to destination | | | | | 6 | Channel unacceptable | | | | | 7 | Call awarded and delivered | | | | | 16 | Normal call clearing | | | | | 17 | User busy | | | | | 18 | No user response | | | | | 19 | No answer | | | | | 21 | Call rejected | | | | | 22 | Number changed | | | | | 27 | Destination out of order | | | | | 28 | Invalid number format/incomplete number | | | | | 29 | Facility rejected | | | | | 30 | Response to status enquiry | | | | | 31 | Normal, unspecified | | | | | 34 | No circuit/channel available | | | | | 38 | Network out of order | | | | | 41 | Temporary failure | | | | | 42 | Switch congestion | | | | | 43 | Access information discarded | | | | Guy Expires April 8, 2009 [Page 17] Internet-Draft IANA IAX Considerations October 2008 | 44 | Requested channel not available | | | | | 45 | Pre-empted (causes.h only) | | | | | 47 | Resource unavailable, unspecified (Q.931 only) | | | | | 50 | Facility not subscribed (causes.h only) | | | | | 52 | Outgoing call barred (causes.h only) | | | | | 54 | Incoming call barred (causes.h only) | | | | | 57 | Bearer capability not authorized | | | | | 58 | Bearer capability not available | | | | | 63 | Service or option not available (Q.931 only) | | | | | 65 | Bearer capability not implemented | | | | | 66 | Channel type not implemented | | | | | 69 | Facility not implemented | | | | | 70 | Only restricted digital information bearer capability is | | | available (Q.931 only) | | | | | 79 | Service or option not available (Q.931 only) | | | | | 81 | Invalid call reference | | | | | 82 | Identified channel does not exist (Q.931 only) | | | | | 83 | A suspended call exists, but this call identity does not | | | (Q.931 only) | | | | | 84 | Call identity in use (Q.931 only) | | | | | 85 | No call suspended (Q.931 only) | | | | | 86 | Call has been cleared (Q.931 only) | | | | | 88 | Incompatible destination | | | | | 91 | Invalid transit network selection (Q.931 only) | | | | | 95 | Invalid message, unspecified | | | | Guy Expires April 8, 2009 [Page 18] Internet-Draft IANA IAX Considerations October 2008 | 96 | Mandatory information element missing (Q.931 only) | | | | | 97 | Message type nonexistent/not implemented | | | | | 98 | Message not compatible with call state | | | | | 99 | Information element nonexistent | | | | | 100 | Invalid information element contents | | | | | 101 | Message not compatible with call state | | | | | 102 | Recovery on timer expiration | | | | | 103 | Mandatory information element length error (causes.h | | | only) | | | | | 111 | Protocol error, unspecified | | | | | 127 | Internetworking, unspecified | +--------+----------------------------------------------------------+ 2.14. Encryption Methods Registry Name: IAX Encryption Methods Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.6.34 of [IAX]. Valid Range: 0x0001-x8000 Bitmask, values must be power of two. Display format: hex. The following table specifies the initial assignments of IAX encryption methods: +--------+-------------+ | METHOD | DESCRIPTION | +--------+-------------+ | 0x0001 | AES-128 | +--------+-------------+ Guy Expires April 8, 2009 [Page 19] Internet-Draft IANA IAX Considerations October 2008 2.15. Media Formats Registry Name: IAX Media Formats Required Information for New Values: Name, description, and relevant security considerations, if any. Description: See Section 8.7 of [IAX]. Valid Range: 0x0001-x8000 Bitmask, values must be power of two. Display format: hex. Guy Expires April 8, 2009 [Page 20] Internet-Draft IANA IAX Considerations October 2008 The following table specifies the initial assignments of IAX Media Format Values +------------+-----------------------------+ | SUBCLASS | DESCRIPTION | +------------+-----------------------------+ | 0x00000001 | G.723.1 | | | | | 0x00000002 | GSM Full Rate | | | | | 0x00000004 | G.711 mu-law | | | | | 0x00000008 | G.711 a-law | | | | | 0x00000010 | G.726 | | | | | 0x00000020 | IMA ADPCM | | | | | 0x00000040 | 16-bit linear little-endian | | | | | 0x00000080 | LPC10 | | | | | 0x00000100 | G.729 | | | | | 0x00000200 | Speex | | | | | 0x00000400 | ILBC | | | | | 0x00000800 | G.726 AAL2 | | | | | 0x00001000 | G.722 | | | | | 0x00002000 | AMR | | | | | 0x00010000 | JPEG | | | | | 0x00020000 | PNG | | | | | 0x00040000 | H.261 | | | | | 0x00080000 | H.263 | | | | | 0x00100000 | H.263p | | | | | 0x00200000 | H.264 | +------------+-----------------------------+ Guy Expires April 8, 2009 [Page 21] Internet-Draft IANA IAX Considerations October 2008 3. Security Considerations This document defines IAX registries and as such does not raise security issues beyond those discussed in [IAX]. Guy Expires April 8, 2009 [Page 22] Internet-Draft IANA IAX Considerations October 2008 4. Acknowledgments The author would like to thank Marc Blanchet and Michelle Cotten for their support and suggestions. Guy Expires April 8, 2009 [Page 23] Internet-Draft IANA IAX Considerations October 2008 5. Normative References [IAX] Spencer, M., Shumard, K., Capouch, B., and E. Guy, "IAX: Inter-Asterisk eXchange Version 2", draft-guy-iax-05 Work In Progress, October 2008. [RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008. Guy Expires April 8, 2009 [Page 24] Internet-Draft IANA IAX Considerations October 2008 Author's Address Ed Guy (editor) TruPhone 235 Main Street, STE 253 Madison, NJ 07940 US Phone: +1 973 437 4519 Email: edguy@emcsw.com URI: http://www.TruPhone.com/ Guy Expires April 8, 2009 [Page 25] Internet-Draft IANA IAX Considerations October 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. Guy Expires April 8, 2009 [Page 26]