ETSI EN 300 267-1 V1.2.2 (1998-04)

SLOVENSKI STANDARD
SIST EN 300 267-1 V1.2.2:2005
01-julij-2005
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Integrated Services Digital Network (ISDN); Telephony 7 kHz, videotelephony,
audiographic conference and videoconference teleservices; Digital Subscriber Signalling
System No. one (DSS1) protocol; Part 1: Protocol specification
Ta slovenski standard je istoveten z: EN 300 267-1 Version 1.2.2
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 300 267-1 V1.2.2:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 267-1 V1.2.2:2005

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SIST EN 300 267-1 V1.2.2:2005
EN 300 267-1 V1.2.2 (1998-04)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Telephony 7 kHz, videotelephony, audiographic conference
and videoconference teleservices;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification

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SIST EN 300 267-1 V1.2.2:2005
2 EN 300 267-1 V1.2.2 (1998-04)
Reference
REN/SPS-05112-1 (2h090ipc.PDF)
Keywords
ISDN, DSS1, teleservice, 7 kHz, audio, video,
telephony, CONF, protocol
ETSI
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998.
All rights reserved.
ETSI

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SIST EN 300 267-1 V1.2.2:2005
3 EN 300 267-1 V1.2.2 (1998-04)
Contents
Intellectual Property Rights.6
Foreword .6
1 Scope.8
2 Normative references .9
3 Definitions.10
4 Abbreviations.11
5 Additional generic requirements for basic telecommunication services not defined in
EN 300 403-1 .11
5.1 Description. 11
5.2 Operational requirements. 11
5.3 Coding requirements. 12
5.4 State definitions . 12
5.5 Signalling procedures at the coincident S and T reference point . 12
5.5.1 Procedures for establishment of a second or subsequent connection within the same call. 12
5.5.1.1 Normal operation. 12
5.5.1.2 Exceptional procedures. 13
5.5.2 Provision of in-band tones and announcements . 13
5.6 Procedures for interworking with private ISDNs. 13
5.6.1 Procedures for the establishment of a second connection within the same call. 13
5.6.2 Provision of in-band tones and announcements . 13
5.7 Interactions with other networks. 13
5.8 Parameter values (timers). 13
5.9 Dynamic description (SDL diagrams). 14
6 Telephony 7 kHz teleservice.14
6.1 Description. 14
6.2 Operational requirements. 14
6.2.1 Provision and withdrawal. 14
6.2.2 Requirements on the originating network side . 15
6.2.3 Requirements on the destination network side . 15
6.3 Coding requirements. 15
6.4 State definitions . 15
6.5 Signalling procedures at the coincident S and T reference point . 15
6.5.1 Call establishment at the originating interface. 15
6.5.2 Call establishment at the destination interface . 17
6.5.2.1 First connection . 17
6.5.2.2 Further connections . 17
6.5.3 Call clearing . 18
6.5.4 In-band tones and announcements. 18
6.5.5 Restart procedure . 18
6.5.6 Call rearrangements. 18
6.5.7 Call collisions. 18
6.5.8 Handling of error conditions . 18
6.5.9 User notification procedure. 18
6.5.10 Basic telecommunication service identification and selection. 19
6.5.11 Signalling procedures for bearer capability selection. 19
6.5.12 Signalling procedures for high layer compatibility selection . 19
6.5.13 Status request procedures. 19
6.6 Procedures for interworking with private ISDNs. 19
6.7 Interactions with other networks. 20
6.8 Parameter values (timers). 20
6.9 Dynamic description (SDL diagrams). 20
ETSI

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SIST EN 300 267-1 V1.2.2:2005
4 EN 300 267-1 V1.2.2 (1998-04)
7 Videotelephony teleservice.20
7.1 Description. 20
7.2 Operational requirements. 21
7.2.1 Provision and withdrawal. 21
7.2.2 Requirements on the originating network side . 21
7.2.3 Requirements on the destination network side . 21
7.3 Coding requirements. 21
7.4 State definitions . 22
7.5 Signalling procedures at the coincident S and T reference point . 22
7.5.1 Call establishment at the originating interface. 22
7.5.2 Call establishment at the destination interface . 24
7.5.2.1 First connection . 24
7.5.2.2 Further connections . 25
7.5.3 Call clearing . 25
7.5.4 In-band tones and announcements. 26
7.5.5 Restart procedures. 26
7.5.6 Call rearrangements. 26
7.5.7 Call collisions. 26
7.5.8 Handling of error conditions . 26
7.5.9 User notification procedure. 26
7.5.10 Basic telecommunication service identification and selection. 27
7.5.11 Signalling procedures for bearer capability selection. 27
7.5.12 Signalling procedures for high layer compatibility selection . 27
7.5.13 Status request procedures. 27
7.6 Procedures for interworking with private ISDNs. 27
7.7 Interactions with other networks. 28
7.8 Parameter values (timers). 29
7.9 Dynamic description (SDL diagrams). 29
8 Audiographic conference teleservice.29
8.1 Description. 29
8.2 Operational requirements. 30
8.2.1 Provision and withdrawal. 30
8.2.2 Requirements on the originating network side . 30
8.2.3 Requirements on the destination network side . 30
8.3 Coding requirements. 30
8.4 State definitions . 30
8.5 Signalling procedures at the coincident S and T reference point . 31
8.5.1 Call establishment at the originating interface. 31
8.5.1.1 First connection . 31
8.5.1.2 Further connections . 33
8.5.2 Call establishment at the destination interface . 33
8.5.2.1 First connection . 33
8.5.2.2 Further connections . 34
8.5.3 Call clearing . 35
8.5.4 In-band tones and announcements. 35
8.5.5 Restart procedures. 35
8.5.6 Call rearrangements. 35
8.5.7 Call collisions. 35
8.5.8 Handling of error conditions . 35
8.5.9 User notification procedure. 36
8.5.10 Basic telecommunication service identification and selection. 36
8.5.11 Signalling procedures for bearer capability selection. 36
8.5.12 Signalling procedures for high layer compatibility selection . 36
8.5.13 Status request procedures. 36
8.6 Procedures for interworking with private ISDNs. 36
8.6.1 First connection. 36
8.6.2 Further connections. 38
8.7 Interactions with other networks. 38
8.8 Parameter values (timers). 38
8.9 Dynamic description (SDL diagrams). 38
ETSI

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SIST EN 300 267-1 V1.2.2:2005
5 EN 300 267-1 V1.2.2 (1998-04)
9 Videoconference teleservice .38
9.1 Description. 38
9.2 Operational requirements. 39
9.2.1 Provision and withdrawal. 39
9.2.2 Requirements on the originating network side . 39
9.2.3 Requirements on the destination network side . 39
9.3 Coding requirements. 39
9.4 State definitions . 40
9.5 Signalling procedures at the coincident S and T reference point . 40
9.5.1 Call establishment at the originating interface. 40
9.5.1.1 First connection . 40
9.5.1.2 Further connections . 42
9.5.2 Call establishment at the destination interface . 42
9.5.2.1 First connection . 42
9.5.2.2 Further connections . 43
9.5.3 Call clearing . 43
9.5.4 In-band tones and announcements. 44
9.5.5 Restart procedures. 44
9.5.6 Call rearrangements. 44
9.5.7 Call collisions. 44
9.5.8 Handling of error conditions . 44
9.5.9 User notification procedure. 44
9.5.10 Basic telecommunication service identification and selection. 44
9.5.11 Signalling procedures for bearer capability selection. 45
9.5.12 Signalling procedures for high layer compatibility selection . 45
9.5.13 Status request procedures. 45
9.6 Procedures for interworking with private ISDNs. 45
9.6.1 First connection. 45
9.6.2 Further connections. 46
9.7 Interactions with other networks. 46
9.8 Parameter values (timers). 47
9.9 Dynamic description (SDL diagrams). 47
Annex A (informative): Signalling flows for the telephony 7 kHz teleservice.48
Annex B (informative): Signalling flows for the videotelephony teleservice.51
Annex C (informative): Signalling flows for the audiographic conference teleservice .55
Annex D (informative): Signalling flows for the videoconference teleservice.59
Annex E (informative): Identification of changes from previous standards.63
E.1 Identification of changes from ETS 300 267-1 to its amendment A1 .63
E.2 Identification of changes from ETS 300 267-1 including amendment A1 to the present document.64
Annex F (informative): Bibliography.65
History.66
ETSI

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SIST EN 300 267-1 V1.2.2:2005
6 EN 300 267-1 V1.2.2 (1998-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETR 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of
ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSI
Web server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).
Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No
guarantee can be given as to the existence of other IPRs not referenced in ETR 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Signalling
Protocols and Switching (SPS).
The present document is part 1 of a multi-part standard covering the Digital Subscriber Signalling System No. one
(DSS1) protocol specification for the Integrated Services Digital Network (ISDN) telephony 7 kHz, videotelephony,
audiographic conference and videoconference teleservices, as described below:
Part 1: "Protocol specification";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification for the user";
Part 4: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification for the user";
Part 5: "Test Suite Structure and Test Purposes (TSS&TP) specification for the network";
Part 6: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification for the network".
Information in the present document concerning usage of the in-band protocol has been prepared in association with
ETSI Technical Committee Terminal Equipment (TE); such information is outside the scope of Technical Committee
SPS but has been included here to improve the presentation for implementors.
In accordance with CCITT Recommendation I.130, the following three level structure is used to describe the
telecommunication services as provided by European public telecommunications operators under the pan-European
ISDN:
- Stage 1: is an overall service description, from the user's standpoint;
- Stage 2: identifies the functional capabilities and information flows needed to support the service described in
stage 1; and,
- Stage 3: defines the signalling system protocols and switching functions needed to implement the service
described in stage 1.
The present document details the stage 3 aspects (DSS1 protocol) needed to support the telephony 7 kHz,
videotelephony, audiographic conference and videoconference teleservices.
ETSI

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SIST EN 300 267-1 V1.2.2:2005
7 EN 300 267-1 V1.2.2 (1998-04)
The telephony 7 kHz stage 1 and stage 2 aspects are detailed in ETS 300 263 and ETS 300 265, respectively.
The videotelephony stage 1 and stage 2 aspects are detailed in ETS 300 264 and ETS 300 266, respectively.
The audiographic conference stage 1 aspects are detailed in ETS 300 675.
The videoconference stage 1 aspects are detailed in ETS 300 678.
The present document is an extended and updated version of ETS 300 267-1 (1994) and its amendment A1 (1996).
Annex E identifies relevant differences between the present document and these standards.
National transposition dates
Date of adoption of this EN: 3 April 1998
Date of latest announcement of this EN (doa): 31 July 1998
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 1999
Date of withdrawal of any conflicting National Standard (dow): 31 January 1999
ETSI

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SIST EN 300 267-1 V1.2.2:2005
8 EN 300 267-1 V1.2.2 (1998-04)
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