1、STD- 83-ENGL 179b 3i00855 O1587b2 T52 GSM 02.83 November 1996 Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-O1 O2830 ICs: 33.020 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Digital cellular telecom
2、munications system; Call Waiting (CW) and Call Holding (HOLD) Supplementary Services - Stage I (GSM 02.83) ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonn
3、e - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretarat - Internet: secretaratets.fr Tel.: +33 4 92 94 42 O0 - Fax: +33 4 93 65 47 16 Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all
4、media. O European Telecommunications Standards Institute 1996. All rights reserved. Page 2 GSM 02.83 Version 5.0.0: November 1996 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments conce
5、rning its accuracy, please write to “ETSI Editing and Committee Support Dept.“ at the address shown on the title page. Page 3 GSM 02.83 Version 5.0.0: November 1996 Contents Foreword . 5 O Scope 7 0.1 Normative references 7 0.2 Abbreviations . 7 1 Call Waiting (CW) . 7 1.1 Definition 7 1.2 Descripti
6、on . 7 1.2.1 Description 7 1.2.2 Applicability to telecommunication services 8 1.2.3 Terminology . 8 Normal procedures with successful outcome 8 1.3.1 Provision 8 1.3.2 Withdrawal . 8 1.3.5 Activation . 8 1.3.6 Deactivation . 8 1.3.7 Invocation 9 1.3.8 1.3 Normal operation with successful outcome .
7、9 Incorning call from C 9 Terminating call by A or B 9 Incoming call from subscriber C ignored by subscriber B . 9 Release by subscnber C within the specified period . 9 1.3.8.1 1.3.8.2 1.3.1 1 Interrogation 9 Exceptional procedures or unsuccessful outcome 9 1.4.1 1.4.2 Incoming call from subscriber
8、 C is indicated as UDUB by subscriber B (or terminal B) . 9 1.4.3 1.4.4 Incoming call from subscriber C is rejected by subscriber 6 10 1.5 Alternate procedures 10 1.6 Interactions with other Supplementary Services 10 1.4 1.6.81.1 1.6.82.1 1.6.82.2 1.6.82.3 1.6.83.2 Call hold . 10 1.6.84.2 MultiParty
9、 . 10 1.6.88.6 1.6.88.7 Calling line identification presentation . 10 Call forwarding unconditional . 10 Call forwarding on mobile subscriber busy 10 Call forwarding on no reply 10 Barring of all incoming calls . 10 Barring of incoming calls when roaming outside the home PLMN country 11 1.7 Interwor
10、king considerations . 11 2 Call hold 11 2.1 Definition 11 2.2 Description . 11 2.2.1 Description 11 Applicability to telecommunication services 11 2.2.2 Normal procedures with successful outcome 12 2.3.1 Provision 12 2.3.2 Withdrawal . 12 2.3.5 Activation . 12 2.3.6 Deactivation . 12 2.3.7 Invocatio
11、n 12 2.3.8 Normal operation with successful outcome . 12 Exceptional procedures or unsuccessful outcome 13 2.4.1 Exceptional operation or unsuccessful outcome . 13 2.4.6 Invocation 13 2.5 Alternate procedures 14 2.3 2.4 STD-ETSI GSM 02-83-ENGL 199b 3400855 OL589b5 7bL D Page 4 GSM 02.83 Version 5.0.
12、0: November 1996 2.6 Interactions with other Supplementary Services . 14 2.6.83.1 Call waiting 14 2.6.84.2 MultiPatty 14 2.7 Interworking considerations 14 History . 15 Page 5 GSM 02.83 Version 5.0.0: November 1996 Foreword This Global System for Mobile communications Technical Specification (GTS) h
13、as been produced by the Special Mobile Group (SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI). This GTS describes Call Waiting (CW) and Call Holding (HOLD) Supplementary Services within the digital cellular telecommunications system. The contents of this G
14、TS are subject to continuing work within TC-SMG and may change following formal TC-SMG approval. Should TC-SMG modify the contents of this GTS it will then be republished by ETSI with an identifying change of release date and an increase in version number as follows: Version 5.x.y where: y the third
15、 digit is incremented when editorial only changes have been incorporated in the specification; x the second digit is incremented for all other types of changes, .e. technical enhancements, corrections, updates, etc. The specification from which this GTS has been derived was originally based on CEPT
16、documentation, hence the presentation of this GTS may not be entirely in accordance with the ETSI/PNE rules. STDmETSI GSM 02-83-ENGL L99b m 3900855 OL589b7 539 m Page 6 GSM 02-83 Version 5.0.0: November 1996 Blank page Page 7 GSM 02-83 Version 5.0.0: November 1996 O Scope This Global System for Mobi
17、le communications Technical Specification (GTS) describes the Supplementary Services belonging to the group Call Completion Supplementary Services. The general aspects, including definitions and recommended provision, of the description of the GSM Supplementary Services are given in specification GS
18、M 02.04. The group of Call Completion Supplementary Services is divided into the following two Supplementary Services: - Call waiting (clause 1); - Call hold (clause 2). 0.1 Normative references This GTS incorporates by dated and undated reference, provisions from other publications. These normative
19、 references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this GTS only when incorporated in it by amendment or revision. For undated references, the latest
20、edition of the publication referred to applies. PI 41 GSM O1 .O4 (ETR 350): “Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. GSM 02.04 (ETS 300 91 8): “Digital cellular telecommunications system (Phase 2+); General on Supplementary Services“. GSM 02.30 (ETS 300 90
21、7): “Digital cellular telecommunications system (Phase 2+); Man-Machine Interface (MMI) of the Mobile Station (MS)“. GSM 02.40: “Digital cellular telecommunications system; Procedures for call progress indications“. GSM 02.81 : “Digital cellular telecommunications system; Line identification Supplem
22、entary Services - Stage 1 “. GSM 02.84: “Digital cellular telecommunications system; MultiParty (MPTY) Supplementary Services - Stage 1 I. 0.2 Abbreviations Abbreviations used in this specification are listed in GSM 01.04. 1 Call Waiting (CW) 1.1 Definition The Call Waiting Service permits a mobile
23、subscriber to be notified of an incoming call (as per basic call procedures) whilst the traffic channel (Bm or Lm) is not available for the incoming call and the mobile subscriber is engaged in an active or held call. Subsequently, the subscriber can either accept, reject, or ignore the incoming cal
24、l. 1.2 Description 1.2.1 Description This service operates when the traffic channel (Bm or Lm) at the controlling subscriber B is not available and B is engaged in an active or held call. Page 8 GSM 02.83 Version 5.0.0: November 1996 When a third party (calling subscriber C) attempts to connect to t
25、hat termination, the controlling subscriber B is given an appropriate indication of the waiting call. A notification that the call is waiting will be sent back towards the calling subscriber C. The maximum number of waiting calls at one time per mobile access is one. This means that no further calls
26、 are offered to the Subscriber while a call is waiting. NOTE: As a network option this maximum number of waiting calls may be greater than one. This is considered as a possible future enhancement. 1.2.2 Applicability to telecommunication services The applicability of this Supplementary Service to th
27、e ongoing call is defined in GSM 02.04 (ETS 300 91 8). The incoming, waiting, call may be of any kind. 1.2.3 Terminology (Controlling) subscriber B This is the subscriber who is provided by the network with the Call Waiting Service and who reacts to the Call Waiting. Subscriber C This is the subscri
28、ber who has originated a call to B which causes the Call Waiting Service to be invoked. Subscriber A This represents a subscriber who is engaged in a call with B, being either the calling or the called party. T2; No answer time out The duration of this time out is the time the network will wait for
29、a response from subscriber B, to the offered call from subscriber C. The value of the timer is between 0,5 and 2 minutes at the service providers discretion. 1.3 Normal procedures with successful outcome 1.3.1 Provision This Supplementary Service is provisioned for all Basic Services (BS) subscribed
30、 to and to which it is applicable, .e. not provisioned to any subset of these BS. 1.3.2 Withdrawal Withdrawal will be at the request of the subscriber or for administrative reasons. 1.3.5 Activation This Supplementary Service will be activated either collectively for all applicable Basic Services or
31、 on a Basic Service group basis by the subscriber using a control procedure, as specified in GSM 02.30, or by the service provider. The controlling subscriber shall be informed by the network of the success or otherwise of her action. 1.3.6 Deactivation The service will be deactivated either collect
32、ively for all applicable Basic Services or on a Basic Service group basis by the subscriber using a control procedure, as specified in GSM 02.30, or by the service provider. The controlling subscriber shall be informed by the network of the success or otherwise of her action. Page 9 GSM 02.83 Versio
33、n 5.0.0: November 1996 1.3.7 Invocation This service is invoked by the network on arrival of an incoming call if the service is active and the controlling subscriber Bs traffic channel is not available, B is engaged in an active or held call and there is no other call currently waiting. 1.3.8 Normal
34、 operation with successful outcome 1.3.8.1 Incoming call from C When an incoming call from subscriber C arrives, the served mobile subscriber is connected to - at least - one call (active or held) and a NDUB (Network Determined User Busy) condition does not exist, then the CW service shall be invoke
35、d and the call shall be offered to subscriber B with an appropriate indication, e.g. with a “Call Waiting Tone“ (refer to GSM 02.40). If a response to the offered call is received from the mobile termination at B, then the subscriber C shall be given an indication (e.g. ringing tone) that the called
36、 subscriber is being informed of the incoming call and, if possible, that call waiting is in operation. 1.3.8.2 Terminating call by A or B If either subscriber A or subscriber B requests that the call is terminated, then this call shall be terminated as for basic call (see GSM 02.30 for more informa
37、tion). Subscriber B shall then be given the normal notification that there is a new call to her, as for a normal terminating call. The network shall continue to indicate; e.g. ringing tone towards subscriber C as for a normal call. B can then accept the call from C before the expiry of T2. Subscribe
38、r B can also free resources by using the Call Hold Supplementary Service. Subscriber B shall then be able to accept the waiting call from subscriber C before the expiry of T2. Alternatively, subscriber B may specifically request release or hold of the connection to A and accept the waiting call as o
39、ne action (see GSM 02.30). In this case, the network connects subscriber B to subscriber C with no further notifications to either subscriber. This must be done before the expiry of T2. 1.3.1 1 Interrogation Status check The controlling subscriber may interrogate the network by the use of a control
40、procedure, as specified in GSM 02.30. The network shall respond with an appropriate indication telling the subscriber whether the service is supported in this network and, if so, provide a list of all Basic Service groups to which the Call waiting Supplementary Service is active. 1.4 Exceptional pro
41、cedures or unsuccessfu I outcome 1.4.1 Incoming call from subscriber C ignored by subscriber B If no response is received by the network from controlling subscriber B before the expiry of T2, then the network shall inform the controlling subscriber B that the call is no longer waiting. Subscriber C
42、shall then be given a no reply indication, unless e.g. Call Forwarding applies. The call waiting service is then made available for a subsequent incoming call. 1.4.2 Incoming call from subscriber C is indicated as UDUB by subscriber B (or terminal B) If the waiting call is indicated as UDUB by B bef
43、ore the expiry of T2 the subscriber C shall be given a busy indication, unless e.g. Call Forwarding applies. The call waiting service is then made available for a subsequent incoming call. 1.4.3 Release by subscriber C within the specified period If calling subscriber C terminates the call attempt t
44、o subscriber B before the expiry of T2, the call attempt from C shall be terminated, as for basic call, and subscriber B shall be notified. Page 10 GSM 02.83 Version 5.0.0: November 1996 I .4.4 Incoming call from subscriber C is rejected by subscriber B If the waiting call is explicitly rejected by
45、B before the expiry of T2, the subscriber C shall be given a reject indication. The call waiting service is then made available for a subsequent incoming call. 1.5 Alternate procedures None identified. 1.6 Interactions with other Supplementary Services 1.6.81.1 Calling line identification presentati
46、on See GSM 02.81 subclause 1.6.83.1 1.6.82.1 Call forwarding unconditional If call forwarding unconditional has been activated, it takes precedence over call waiting. Call forwarding unconditional can be activated while a call is waiting without changing the state of the waiting call. 1.6.82.2 Call
47、forwarding on mobile subscriber busy No impact, .e. neither Supplementary Service shall affect the operation of the other Supplementary Service. The following text clarifies the situation: If user B is NDUB (Network Determined User Busy), Call Forwarding shall take place, and the call is not offered
48、 to B. If B is not NDUB, the call shall be offered to B, and if the UDUB (User DUB) condition occurs, then the Call Forwarding shall take place. 1.6.82.3 Call forwarding on no reply If the CFNRy is active and operative for the called subscriber then a waiting call shall still be offered as described
49、 in subclause 1.3.8.1 (call waiting indication). If no response is received to this call before the expiry of the No Reply Condition timer, then the call forwarding on no reply service becomes invoked and the call is forwarded as per that call forwarding on no reply service description. 1.6.83.2 Call hold The served user may use the Call Hold service to answer subsequently a waiting call from C. if the served mobile subscriber has an active call and a call one hold the network can still offer an incoming call with the waiting indication .e. the NDUB condition is not used the normal
