ETSI GSM 02 40-1996 Digital Cellular Telecommunications System Procedure for Call Progress Indications (GSM 02 40 Version 5 0 0)《参见ETS 300 512(版本4 5 0)》.pdf

1、GSM GSM 02.40 November 1996 Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-O10240Q ICs: 33.020 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Digital cellular telecommunications system; Procedure for c

2、all progress indications (GSM 02.40) ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Off ice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretarat - Internet: sec

3、retariat ets.fr Tel.: +33 4 92 94 42 O0 - Fax: +33 4 93 65 47 16 Copyright Notification: No pari may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 1996. All

4、rights reserved. 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 concerning its accuracy, please write to “ETSI Editing and Committee Support Dept.“ at the address shown on the title

5、page. STD*ETSI GSM OZ*LiO-ENGL 399b 3400855 0358893 972 Page 3 GSM 02.40 Version 5.0.0: November 1996 Contents Foreword . 5 0 Scope 7 0.1 Normative references 7 0.2 Abbreviations . 7 1 General 7 2 Supervisory tones 8 2.1 General 8 2.2 Method . 8 Standard tones . 8 2.4 Applicability 8 Point of introd

6、uction . 8 2.3 2.5 2.6 Comfort tones 9 3 Recorded announcements 10 Annex A (normative): Application of call control cause information elements to supervisory tones . 11 History 12 STD-ETSI GSM OZ*LiO-ENGL 399b 3400855 0358892 809 Page 4 GSM 02.40 Version 5.0.0: November 1996 Blank page STDaETSI GSM

7、02-40-ENGL 199b 3400855 0158873 7q5 Page 5 GSM 02.40 Version 5.0.0: November 1996 Foreword This Global System for Mobile communications Technical Specification (GTS) has been produced by the Special Mobile Group (SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (E

8、TSI). This GSM Technical Specification (GTS) define requirements for call progress and related information to be provided to users of the GSM system. The contents of this GTS are subject tocontinuing work within TC-SMG and may change following formal TC-SMG approval. Should TC-SMG modify the content

9、s 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 digit is incremented when editorial only changes have been incorporated in the specification; the second digit is incremented fo

10、r all other types of changes, .e. technical enhancements, corrections, updates, etc. x , STD.ETS1 GSM 02-LIO-ENGL L77b 3400855 0158894 bAL m Page 6 GSM 02.40 Version 5.0.0: November 1996 Blank page STD-ETSI GSM OZ*LiO-ENGL 377b 3400855 0358875 518 Page 7 GSM 02.40 Version 5.0.0: November 1996 O Scop

11、e This Global System for Mobile communications Technical Specification (GTS) defines requirements for call progress and related information to be provided to users of the GSM system. 0.1 Normative references This GTS incorporates by dated and undated reference, provisions from other publications. Th

12、ese normative 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

13、, the latest edition of the publication referred to applies. 31 GSM O1 .O4 (ETR 350): “Digital cellular telecommunication system (Phase 2+); Abbreviations and acronyms“. GSM 02.30 (ETS 300 907): “Digital cellular telecommunications system (Phase 2+); Man-Machine Interface (MMI) of the Mobile Station

14、 (MS)“. GSM 04.08 (ETS 300 940): “Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer 3 specification“. 141 CEPT Recommendation TICS 20-1 5: “Tones and announcements“. 151 CEPT Recommendation TIS F23: “Relative aux dfinitions et caractristiques audibles des tonalits e

15、t des annonces parles“. 0.2 Abbreviations Abbreviations used in this GTS are listed in 01.04. 1 General There are aspects of the Man Machine Interface (MMI) of the GSM Network which relate to users, but which are not covered by 02.30, which deals specifically with the MMI of the Mobile Station (MS).

16、 The present GTS covers the means by which mobile users, and callers to a GSM network, will be given information regarding progress of their calls. Indications of call progress, such as ringing, engaged, unobtainable, and no radio channel, may in principle be verbal message, tones, displayed text or

17、 graphical symbols. Which combination of these applies may depend on the message, the MS and selection by the user or PLMN operator. However, verbal announcements will generally be reserved for situations which are peculiar to a mobile network, where users may be unfamiliar with any tone chosen to i

18、ndicate conditions such as “call diversion“ or “subscriber not available“. It may also be desirable to add comfort indications (e.g. tones, noise, music, clicks) while a call is being connected, since silence may cause an unfamiliar user to believe that nothing is happening. Generally, on data calls

19、, and on the data part of alternate speech/data or speech-followed-by-data calls, PLMN generated network tones and announcements should be muted. STD-ETSI GSM UZ-LiO-ENGL L77b m 3400855 UL5887b LisLi Page 8 GSM 02.40 Version 5.0.0: November 1996 2 Supervisory tones I I 2.1 . General Supervisory Tone

20、s, indicating primarily ringing, engaged and unobtainable numbers, may be generated by both the PLMN and PSTN. Except for ring tone, all tones indicating call progress to a MS user shall be generated in the MS, on the basis of signals from the network where available, and are according to the standa

21、rd defined in this GTS. Tones sent to a caller to a MS will be generated in the network, generally local to the caller, and will be to the standard of his local exchange, except for mobile to mobile calls, where the tones will be generated in OACSU). I the calling MS. For mobile terminated calls, th

22、e ring tone will be generated in the called MSC (except 2.2 Method In the interests of early release of the traffic channel on failure to succeed in setting up a (mobile originated) call, where possible supervisory tones should be indicated over signalling channels. The MS will then generate the req

23、uired tones. However, if the network generates an in-band announcement this will be indicated to the MS. In this case the MS shall connect the user to the announcement until instructed to release the call, either by the user or by the network. An alternate procedure may apply for MS able to generate

24、 appropriate announcements internally (see clause 3). The ring tone will be sent over the traffic channel, since this channel must be available for traffic immediately it is answered (exception: Off Air Call Set Up). The Ring Tone is therefore generated by the PLMN or PSTN supporting the called phon

25、e. On failed mobile terminated call attempts, the called MSC will either signal to the caller, if this is possible, or else will generate the required supervisory tones. “Alert“ is not a supervisory tone. The indication is signalled, and the MS may generate any form of indication to the user that th

26、e MS is being called. 2.3 Standard tones MS generated tones will be generally in accordance with CEPT recommendations, where appropriate, and are listed in table 1. Any network originated tones will be according to PLMN or PSTN choice. 2.4 Applicability This method will apply in all cases where sign

27、alling is capable of indicating the supervisory tone required. However, for connection to certain fixed networks where this signalling is not possible, fixed network tones will be carried over the traffic channel. Mobile Stations may employ any suitable technique to indicate supervisory information.

28、 However, if tones are employed, they shall be in accordance with this GTS. The use of these tones in the MSC is preferred. NOTE 1: The tones and/or announcement to the calling party should not be provided if the Information transfer capability is set to UDI. NOTE 2: For a call with information tran

29、sfer capability set to 3,l kHz, the use of tones and/or announcement may cause the expiry of an awaiting answer timer in a modem or fax machine. 2.5 Point of introduction Introduction El. STD-ETSI GSM 02-qU-ENGL L99b m 3qU0855 0358877 370 m Page 9 GSM 02.40 Version 5.0.0: November 1996 2.6 Comfort t

30、ones If desired by the PLMN operator, the network may optionally introduce “comfort tones“ while the call is being connected, during what would otherwise be silence. This would be overridden by indication of a supervisory tone, an announcement or by traffic. PLMNc may offer this feature optionally t

31、o incoming or outgoing callers. The “comfort tones“ may take the form of tones, clicks, noise, music or any other suitable form, provided that they cannot be confused with other indications that might be expected. This feature is intended to indicate to the user that his call is progressing, to prev

32、ent him terminating the call prematurely. Table 1 : Supervisory tones in GSM MSs Tone Dial tone (optional) Frequency Tolerance Type 1 425 Hz 15 HZ Continuous 2* Subscriber Busy 425 Hz 15 Hz Tone on 500 ms (Called Number) Silence 500 ms 3* Conaestion 425 Hz 15 Hz Tone on 200 ms “ Silence 200 ms 4 Rad

33、io Path 425 Hz 15 Hz Single tone 200 ms Acknowledgement (Mobile originated only) (optional) Available Call Dropped - Mobile originated only) Information 1 400 Hz 50 Hz Tones on 330 ms Number Unobtainable 1 Authentication Failure 1 5 Radio Path Not 425 Hz 15 HZ 200 ms On/off for 200 ms 3 bursts 6* Er

34、ror/Special 950 Hz 50 Hz Triple Tone 1 800 Hz 50 Hz Silence 1 ,O s 7 Call Waiting Tone 425 Hz (tolerance 15Hz), on for 200ms, off for 600ms on for 200 ms, off for 3 s, on for 200 ms, off for 600 ms on for 200 ms. This tone is superimposed on the audio traffic received by the called user. Alternate t

35、ones are acceptable but not preferred. Definition of these and other tones, together with advice on announcements, may be found in CEPT T/CS 20-1 5 and in T/SF 23. The duration of these tones is an implementation option. However, in each case, the MS should be returned immediately to the idle state,

36、 and will be able to originate/receive calls, which will override these tones. Ringing Tone 425 Hz 15 Hz Tone on 1 s Silence (Alternative national 4s options permitted) For application of Call Control Cause Information Elements to these tones, see annex A, - STD-ETSI GSM 02.40-ENGL L97b 3Li00855 035

37、8898 227 Page 10 GSM 02.40 Version 5.0.0: November 1996 3 Recorded announcements I % In present networks, both fixed and cellular, the language of recorded announcements and displayed information is invariably that of the country of origin. However, this is generally undesirable in a multi- lingual

38、environment such as is encountered on a pan-European network with international roaming. It is therefore probably desirable to minimize the number of such announcements. Advanced MSs may be designed which have the ability to generate announcements in the form desired by the user, e.g. in the languag

39、e preferred by the user. In this case, it becomes necessary to block any verbal announcements sent from the network towards the MS, to avoid clashes with those generated by the MS. The MS may be allowed to block in-band announcements in case appropriate announcements according to the Cause Informati

40、on Elements (annex A) can be generated. The default setting of the MS shall be “non blocking“, which could be set by MMI command to “blocking“. Announcements generated by the PLMN and sent to callers to that PLMN will generally be in the language of the PLMN. However, on some fixed networks it will

41、be possible for the message to be signalled back to the callers local exchange, which will then generate the announcement in its local language. STD - ETSI GSM Page 11 GSM 02.40 Version 5.0.0: November 1996 Annex A (normative): Application of call control cause information elements to supervisory to

42、nes The Cause Information Elements are listed and defined in 04.08. This annex lists these elements and indicates which supervisory tone should be generated in response. It should be noted that some conditions (e.g. radio path not available, dropped call) may be deduced by the MS, rather than signal

43、led explicitly over the air interface. All causes not listed below should result in the generation of tone 6. In case of multiple calls a tone should only be generated if it does not disturb an ongoing active call. indicates no tone required. Cause cc 16 17 22 30 31 34 41 42 44 49 58 Normal Clearing

44、 User Busy Number Changed Response to STATUS ENQUIRY Normal, unspecified No circuichannel available Temporary Failure Switching Equipment Congestion Requested circuitlchannel not available Quality of Service Unavailable Bearer Capability not available Tone (see table 1) 1 2 STD*ETSI GSM 02.qO-ENGL L77b 3g00855 0358900 705 November 1996 Page 12 GSM 02.40 Version 5.0.0: November 1996 Publication of Version 5.0.0 History ISBN 2-7437-1 123-X Dpt lgal : Novembre 1996