Media Gateway Control Kevin Boyle II Internet Draft Sarah Cornel Document: draft-boyle-megaco-tonepkgs-07.txt Nortel Networks Category: Standards Track C. Michael Brown March 2002 Supplemental Tones Packages for Megaco/H.248 Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026 [1]. 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. 1. Abstract This document provides proposed definitions for several supplemental packages for Megaco/H.248. These packages address support of functionality for basic and enhanced telephony services. 2. Conventions used in this document 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 RFC-2119 [2]. 3. Packages and Megaco The packages defined in this draft are designed as discussed in Section 12 of RFC 3015 [4]. Packages allow finite and expandable extensions of the Megaco/H.248 protocol, allowing adaptation to a wide range of applications, without requiring change to the definition of the protocol itself. The packages defined here allow a wide range of telephony services to be realized by the Megaco/H.248 protocol. Boyle, et al Standards Track - Expires Sept. 2002 1 Supplemental Tones Packages for Megaco/H.248 Mar 2002 Note that several tones packages defined by ITU-T Recommendation Q.1950 [3] for use under the CBC protocol are suitable for use under the Megaco/H.248 protocol as well. Those packages are: * Basic Call Progress Tones Generator with Directionality Package * Expanded Call Progress Tones Generator Package * Basic Services Tones Generation Package * Expanded Services Tones Generation Package * Intrusion Tones Generation Package * Business Tones Generation Package For more information regarding these packages, please see ITU-T Recommendation Q.1950 [3]. 5. Conferencing Tones Generation Package PackageID: conftn (0x0038) Version: 1 Extends: tonegen version 1 This package defines conferencing signals. 5.1 Properties None. 5.2 Events None. 5.3 Signals Conference Entrance Tone SignalID: enter (0x0061) Generate conference entrance tone, which indicates a new caller has joined the conference. The physical characteristic of conference entrance is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) Boyle, et al Standards Track - Expires Sept. 2002 2 Supplemental Tones Packages for Megaco/H.248 Mar 2002 The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. The other signals in this package are specified in exactly the same way. A table with all signal names and signal IDs is included. Note that each signal is defined as both a signal and a toneid, thus extending the basic tone generation package. +---------------------------+-------------------+ | Signal Name | Signal ID/tone ID | +---------------------------+-------------------+ | Conf. Entrance Tone | enter (0x0061) | | Conf. Exit Tone | exit (0x0062) | | Conf. Lock Tone | lock (0x0063) | | Conf. Unlock Tone | unlock (0x0064) | | Time Limit Warning Tone | timelim (0x0065) | +---------------------------+-------------------+ Conference Exit Tone SignalID: exit (0x0062) Generate conference exit tone, which indicates a conferee has left the conference. The physical characteristic of conference exit is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal Boyle, et al Standards Track - Expires Sept. 2002 3 Supplemental Tones Packages for Megaco/H.248 Mar 2002 shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Conference Lock Tone SignalID: lock (0x0063) Generate conference lock tone, which indicates the controller has blocked new callers from joining the conference. The physical characteristic of conference lock is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Conference Unlock Tone SignalID: unlock (0x0064) Generate conference unlock tone, which indicates the controller has allowed new callers to join the conference. The physical characteristic of conference unlock is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Boyle, et al Standards Track - Expires Sept. 2002 4 Supplemental Tones Packages for Megaco/H.248 Mar 2002 Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Time Limit Warning Tone SignalID: timelim (0x0065) Generate time limit warning tone, which indicates that there are only a few minutes remaining on the provisioned conference bridge. The physical characteristic of conference lock is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Boyle, et al Standards Track - Expires Sept. 2002 5 Supplemental Tones Packages for Megaco/H.248 Mar 2002 5.4 Statistics None. 5.5 Procedures None. 6. Diagnostic Tones Generation Package PackageID: test (0x0039) Version: 1 Extends: tonegen version 1 This package defines diagnostic signals for use by telephony providers. The definitions and usage of these tones are dependent upon the test application in use. 6.1 Properties None. 6.2 Events None. 6.3 Signals Low Tone SignalID: low (0x0066) Generate low tone. The physical characteristic of low tone is available in the gateway. Signal Type: OnOff Duration: N/A Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal Boyle, et al Standards Track - Expires Sept. 2002 6 Supplemental Tones Packages for Megaco/H.248 Mar 2002 shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. The other signals in this package are specified in exactly the same way. A table with all signal names and signal IDs is included. Note that each signal is defined as both a signal and a toneid, thus extending the basic tone generation package. +---------------------------+-------------------+ | Signal Name | Signal ID/tone ID | +---------------------------+-------------------+ | Low Tone | low (0x0066) | | High Tone | high (0x0067) | | Loud Tone | loud (0x0068) | | Faint Tone | faint (0x0069) | | Slow Interrupted Tone | slow (0x006a) | | Fast Interrupted Tone | fast (0x006b) | +---------------------------+-------------------+ High Tone SignalID: high (0x0067) Generate high tone. The physical characteristic of high tone is available in the gateway. Signal Type: OnOff Duration: N/A Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Boyle, et al Standards Track - Expires Sept. 2002 7 Supplemental Tones Packages for Megaco/H.248 Mar 2002 Loud Tone SignalID: loud (0x0068) Generate loud tone. The physical characteristic of loud tone is available in the gateway. Signal Type: OnOff Duration: N/A Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Faint Tone SignalID: faint (0x0069) Generate faint tone. The physical characteristic of faint tone is available in the gateway. Signal Type: OnOff Duration: N/A Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the Boyle, et al Standards Track - Expires Sept. 2002 8 Supplemental Tones Packages for Megaco/H.248 Mar 2002 context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Slow Interrupted Tone SignalID: slow (0x006a) Generate slow interrupted tone. The physical characteristic of slow interrupted tone is available in the gateway. Signal Type: OnOff Duration: N/A Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Fast Interrupted Tone SignalID: fast (0x006b) Generate fast interrupted tone. The physical characteristic of fast interrupted tone is available in the gateway. Signal Type: OnOff Duration: N/A Additional Parameters: Tone Direction Boyle, et al Standards Track - Expires Sept. 2002 9 Supplemental Tones Packages for Megaco/H.248 Mar 2002 ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. 6.4 Statistics None. 6.5 Procedures None. 7. Carrier Tones Generation Package PackageID: carr (0x003a) Version: 1 Extends: tonegen version 1 This package defines signals for use by carrier services. 7.1 Properties None. 7.2 Events None. 7.3 Signals Carrier Dial Tone SignalID: cdt (0x006c) Generate carrier dial tone, indicating that a carrier other than the default is providing service for the call. The Boyle, et al Standards Track - Expires Sept. 2002 10 Supplemental Tones Packages for Megaco/H.248 Mar 2002 physical characteristic of carrier dial tone is available in the gateway. Signal Type: Timeout Duration: Provisioned, Not Auditable Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. The other signals in this package are specified in exactly the same way. A table with all signal names and signal IDs is included. Note that each signal is defined as both a signal and a toneid, thus extending the basic tone generation package. +---------------------------+-------------------+ | Signal Name | Signal ID/tone ID | +---------------------------+-------------------+ | Carrier Dial Tone | cdt (0x006c) | | Carrier Answer Tone | ans (0x006d) | | Carrier Charging Tone | chg (0x006e) | | Long Distance Ind. Tone | ldi (0x006f) | +---------------------------+-------------------+ Carrier Answer Tone SignalID: ans (0x006d) Generate carrier answer tone, also known as tone burst on answer, indicating that a carrier other than the default is providing service for the call. The physical characteristic of carrier answer tone is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Boyle, et al Standards Track - Expires Sept. 2002 11 Supplemental Tones Packages for Megaco/H.248 Mar 2002 Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. Carrier Charging Tone SignalID: chg (0x006e) Generate carrier charging tone, also known as subscriber trunk dialing tone, indicating that a subscriber has dialed a trunk call, and charging is about to commence. The physical characteristic of carrier charging tone is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in Boyle, et al Standards Track - Expires Sept. 2002 12 Supplemental Tones Packages for Megaco/H.248 Mar 2002 package tonegen to generate this signal will prevent the capability to use the directionality parameter. Long Distance Indicator Tone SignalID: ldi (0x006f) Generate long distance indicator tone, indicating that the call is a long-distance connection. The physical characteristic of long distance indicator tone is available in the gateway. Signal Type: Brief Duration: Provisioned, Not Auditable Additional Parameters: Tone Direction ParameterID: btd (0x01) Type: Enumeration Possible Values: External ext (0x01), Internal int (0x02), Both both (0x03) The tone direction indicates in which direction the signal shall proceed with respect to the center of the context. "Internal" denotes that the signal shall proceed toward the center of the context from the termination, while "external" denotes that the signal shall proceed toward the edge of the context. "Both" indicates that the signal shall proceed in both directions. Unspecified tone direction shall default to "external". Note that using the playtone signal in package tonegen to generate this signal will prevent the capability to use the directionality parameter. 7.4 Statistics None. 7.5 Procedures None. 8. Formal Syntax Not Applicable 9. Security Considerations Boyle, et al Standards Track - Expires Sept. 2002 13 Supplemental Tones Packages for Megaco/H.248 Mar 2002 Security considerations are addressed as per Section 10 of RFC-3015 [4]. 10. IANA Considerations The packages defined in this document are registered as per Section 13, "IANA Considerations", of RFC 3015 [4]. 11. Acknowledgements The authors would like to acknowledge that these package definitions have benefited from the review and contribution of several other organizations and individuals. Notably, Christian Groves (LM Ericsson), Bernhard Pfeil (Siemens) and Pieter Veenstra (KPN) were primary contributors in the addition of the capability for specifying directionality of tones. 12. References Informative 1 Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9, RFC 2026, October 1996 2 Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997 Normative 3 ITU-T Recommendation Q.1950: "Call Bearer Control (CBC) Protocol" 4 Cuervo, et al., "Megaco Protocol Version 1.0", RFC 3015, November 2000 13. Author's Addresses Kevin Boyle II Nortel Networks 4008 Chapel Hill Road Research Triangle Park, NC USA 27709 Phone: (919) 991-2690 Email: kboyle@nortelnetworks.com Sarah Cornel Nortel Networks 4008 Chapel Hill Road Research Triangle Park, NC USA 27709 Phone: (919) 991-2853 Email: sarahc@nortelnetworks.com C. Michael Brown Boyle, et al Standards Track - Expires Sept. 2002 14 Supplemental Tones Packages for Megaco/H.248 Mar 2002 1104 Hemingway Drive Raleigh, NC USA 27609 Email: cmbrown@mindspring.com Boyle, et al Standards Track - Expires Sept. 2002 15 Supplemental Tones Packages for Megaco/H.248 Mar 2002 Full Copyright Statement "Copyright (C) The Internet Society (date). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS 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." 18. Expiration Date This memo is filed as <draft-boyle-megaco-tonepkgs-07.txt>, and expires September 1, 2002. Boyle, et al Standards Track - Expires Sept. 2002 16