1、 International Telecommunication Union ITU-T Q.1902.3TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 3(01/2006) SERIES Q: SWITCHING AND SIGNALLING Specifications of signalling related to Bearer Independent Call Control (BICC) Bearer Independent Call Control protocol (Capability Set 2) and
2、Signalling System No. 7 ISDN User Part: Formats and codes Amendment 3: Support for the International Emergency Preference Scheme ITU-T Recommendation Q.1902.3 (2001) Amendment 3 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONA
3、L AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4, 5, 6, R1 AND R2 Q.120Q.499 DIGITAL EXCHANGES Q.500Q.599 INTERWORKING OF SIGNALLING SYST
4、EMS Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700Q.799 Q3 INTERFACE Q.800Q.849 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INTELLIGENT NETWORK Q.1200Q.1699 SIGNALLING REQUIREMENTS A
5、ND PROTOCOLS FOR IMT-2000 Q.1700Q.1799 SPECIFICATIONS OF SIGNALLING RELATED TO BEARER INDEPENDENT CALL CONTROL (BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. Q.1902.3 (2001)/Amd.3 (01/2006) i ITU-T Recommendation Q.1
6、902.3 Bearer Independent Call Control protocol (Capability Set 2) and Signalling System No. 7 ISDN User Part: Formats and codes Amendment 3 Support for the International Emergency Preference Scheme Summary This amendment was produced to meet the need for the implementation of the International Emerg
7、ency Preference Scheme (IEPS) for disaster recovery operations as specified in ITU-T Rec. E.106. It contains the modifications to ITU-T Rec. Q.1902.3 (2001) in order to accommodate these needs. This amendment should be read in conjunction with Amendment 2 to ITU-T Rec. Q.1902.1, Amendment 3 to ITU-T
8、 Rec. Q.1902.2, and Amendment 3 to ITU-T Rec. Q.1902.4. This amendment incorporates Amendment 1 to ITU-T Rec. Q.1902.3 and provides enhancements. Source Amendment 3 to ITU-T Recommendation Q.1902.3 (2001) was approved on 27 January 2006 by ITU-T Study Group 11 (2005-2008) under the WTSA Resolution 1
9、 procedure. ii ITU-T Rec. Q.1902.3 (2001)/Amd.3 (01/2006) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible f
10、or studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T stu
11、dy groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis
12、 with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory p
13、rovisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of
14、 such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no pos
15、ition concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protecte
16、d by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. ITU 2006 All rights reserved. No part of this publication may be reproduce
17、d, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. Q.1902.3 (2001)/Amd.3 (01/2006) iii CONTENTS Page 1) Clause 4 Abbreviations 1 2) Clause 6.21 Calling partys category . 1 3) Table 2 1 4) New clause 6.108 IEPS call information. 1 5) Table 38 3 ITU-T Rec. Q.1902.3 (20
18、01)/Amd.3 (01/2006) 1 ITU-T Recommendation Q.1902.3 Bearer Independent Call Control protocol (Capability Set 2) and Signalling System No. 7 ISDN User Part: Formats and codes Amendment 3 Support for the International Emergency Preference Scheme 1) Clause 4 Abbreviations Add the following new abbrevia
19、tion alphabetically: IEPS International Emergency Preference Scheme 2) Clause 6.21 Calling partys category Change the following in Figure 39, which had been a spare value: 0 0 0 0 1 1 1 0 IEPS call marking for preferential call set-up 3) Table 2 Modify Table 2 in order to introduce the following new
20、 IEPS call information parameter (6.108) after “automatic re-routing“: Table 2/Q.1902.3 Parameter name codes Parameter name Reference (clause) Code Note IEPS call information 6.108 1010 0110 4) New clause 6.108 IEPS call information Add new clause 6.108 as follows: 6.108 IEPS call information The fo
21、rmat of the IEPS call information parameter field is shown in Figure 125a. 8 7 6 5 4 3 2 1 1 Country/International network of call origination 2 Priority levelFigure 125a/Q.1902.3 IEPS call information parameter field 2 ITU-T Rec. Q.1902.3 (2001)/Amd.3 (01/2006) The following codes are used in the s
22、ubfields of the IEPS call information parameter field: a) Country/international network of call origination 8 7 6 5 4 3 2 1 1 O/E Spare Numbering plan indicator Length of country/international network of call origination 1a 2nd digit 1st digit 1b 1m Filler (if necessary) Nth digit Figure 125b/Q.1902
23、.3 Country/international network of call origination subfield 1) Odd/even indicator (O/E): as 6.17a) of Q.1902.3. 2) Numbering plan indicator 000 spare 001 numbering plan according to ITU-T Rec. X.121 010 numbering plan according to ITU-T Rec. E.164 3) Length of country/international network of call
24、 origination Number of octets to follow that contain the digits identifying the country or international network of call origination. 4) Digits Digit string of flexible length in BCD encoding identifying either the country or international network of call origination. To identify a specific country
25、of call origination, the digit string will consist of the X.121 country code (3 digits). To identify an international network of call origination, the digit string will consist of an E.164 country code for international networks (3 digits) followed by an identification code (1 to 4 digits) to identi
26、fy the international network. 5) Filler In case of an odd number of digits, the filler code 0000 is inserted after the last digit. b) Priority level 8 7 6 5 4 3 2 1 2 Spare Priority level Figure 125c/Q.1902.3 Priority level subfield This subfield carries national priority level of an IEPS call accor
27、ding to bilateral agreements. The priority level is signalled in inverse order of the numerical value. i.e., the lower the numerical value is, the higher the priority. For example, numerical value 0 indicates the highest priority possible. ITU-T Rec. Q.1902.3 (2001)/Amd.3 (01/2006) 3 5) Table 38 Add
28、 new IEPS call information parameter between “Hop counter“ and “IN service compatibility“: Table 38/Q.1902.3 Message Type: Initial address Parameter Reference (clause) Type Length (octets) IEPS call information 6.108 O 6-8 Printed in Switzerland Geneva, 2006 SERIES OF ITU-T RECOMMENDATIONS Series A
29、Organization of the work of ITU-T Series D General tariff principles Series E Overall network operation, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems and media, digital systems and networks Series H Audiovisual
30、 and multimedia systems Series I Integrated services digital network Series J Cable networks and transmission of television, sound programme and other multimedia signals Series K Protection against interference Series L Construction, installation and protection of cables and other elements of outsid
31、e plant Series M Telecommunication management, including TMN and network maintenance Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Telephone transmission quality, telephone installations, local line ne
32、tworks Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services terminal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems
