Contents
Page
Contents
International Telecommunication Union (ITU)
Dates of publication of the next Operational Bulletins
No. 820
15.IX.2004
No. 821
1.X.2004
No. 822
15.X.2004
including information
received by:
8.IX.2004
24.IX.2004
8.X.2004
Place des Nations CH-1211 Genève 20
(Switzerland)
Tel: +41 22 730 5111
www.itu.int/itu-t/bulletin/index.html
Fax: +41 22 730 5853 E-mail: tsbtson@itu.int
+41 22 733 7256 tsbmail@itu.int
itumail@itu.int
Contact Telecommunication Standardization Bureau (TSB):
Tel: +41 22 730 5222
Fax: +41 22 730 5853
Contact Radiocommunication
Bureau (BR):
Tel: +41 22 730 5217
Fax: +41 22 730 5785
GENERAL INFORMATION
Lists annexed to the ITU Operational Bulletin
Note from TSB
Approval and deletion of ITU-T Recommendations
Telephone Service
Armenia (country code +374)
Israel (country code +972)
Latvia (country code +371)
Tonga (Country code +676)
Telex Service
Japan
United States
Latvia
Switzerland
United Kingdom
Changes in Administrations/ROAs and other entities
or Organizations
Cameroon
Qatar
Other communication
Austria
Service Restrictions
Note from TSB
Call-Back
and alternative calling procedures (Res. 21 Rev. PP-98)
Note from TSB
AMENDMENTS TO SERVICE DOCUMENTS
Abbreviations used
List
of Ship Stations
(List V)
44th Edition, June 2004
Section IV
REP
FIN
Various tones used in national networks
(According to ITU-T Recommendation E.180)
(Position on 1 February 2003)
COUNTRY/TONE FREQUENCY in Hz CADENCE in seconds
Finland LIR
List of International Signalling Point Codes (ISPC)
(According to ITU-T Recommendation Q.708 (03/99))
(Position on 1 October 2003)
P 4-6 Australia LIR
P 25 Israel ADD
P 29 Latvia ADD
P 36 Pakistan ADD
List of Issuer Identifier Numbers for
the international telecommunication charge card
(in accordance with ITU-T Recommendation E.118)
(Position on 1 April 2003)
P 18 Guam ADD
GENERAL INFORMATION
Lists annexed to the ITU Operational Bulletin
Note from TSB
A. The following Lists have been published by TSB or BR as Annexes to the ITU Operational Bulletin (OB):
OB No.
818 List of Data Network Identification Codes (DNIC) (According to ITU-T Recommendation X.121 (10/00)) (Position on 15 August 2004)
817 List of Data Country or Geographical Area Codes (Complement to ITU T Recommendation X.121) (Position on 1 August 2004)
816 Access codes/numbers for mobile networks (According to ITU-T Recommendation E.164) (Position on 15 July 2004)
815 List of terrestrial trunk radio mobile country codes (Complement to ITU-T Recommendation E.218 (05/04)) (Position on 1 July 2004)
805 List of ITU-T Recommendation E.164 assigned country codes (Complement to ITU T Recommendation E.164 (05/97)) (Position on 1 February 2004)
803 List of Mobile Country or Geographical Area Codes (Complement to ITU T Recommendation E.212 (11/98)) (Position on 1 January 2004)
801 Mobile Network Code (MNC) for the international identification plan for mobile terminals and mobile users (According to ITU-T Recommendation E.212 (11/98)) (Position on 1 December 2003)
799 List of Signalling Area/Network Codes (SANC) (Complement to ITU-T Recommendation Q.708 (03/99)) (Position on 1 November 2003)
797 List of International Signalling Point Codes (ISPC) (According to ITU T Recommendation Q.708 (03/99)) (Position on 1 October 2003)
787 Dialling Procedures (International prefix, national (trunk) prefix and national (significant) number) (In accordance with ITU-T Recommendation E.164 (05/97)) (Position on 1 May 2003)
785 List of Issuer Identifier Numbers for the International Telecommunication Charge Card (in accordance with ITU-T Recommendation E.118) (Position on 1 April 2003)
781 Various tones used in national networks (According to ITU-T Recommendation E.180 (03/98)) (Position on 1 February 2003)
767 Status of Radiocommunications between Amateur Stations of different Countries (In accordance with optional provision No. 25.1 of the Radio Regulations) and Form of Call Signs assigned by each Administration to its Amateur and Experimental Stations (Position on 1 July 2002)
766 List of Country or Geographical Area Codes for non-standard facilities in telematic services (Complement to ITU-T Recommendation T.35) (Position on 15 June 2002)
764 List of Telegram Destination Indicators (In accordance with ITU-T Recommendation F.32) (Position on 15 May 2002)
725 List of Names of Administration Management Domains (ADMD) (In accordance with ITU-T F.400 and X.400 series Recommendations) (Position on 30 September 2000)
693 List of Telex Destination Codes (TDC) and Telex Network Identification Codes (TNIC) (Complement to ITU-T Recommendations F.69 and F.68) (Position on 31 May 1999)
691 Service Restrictions (Recapitulatory list of service restrictions in force relating to telecommunications operation) (Position on 1 May 1999)
669 Five-letter Code Groups for the use of the International Public Telegram Service (According to ITU-T Recommendation F.1 (03/98))
B. The following Lists are now available online from the ITU-T website:
-
List of ITU Carriers Codes
(ITU-T Rec. M.1400 (02/00))
|
http://www.itu.int/ITU-T/inr/icc/index.html
|
Bureaufax Table (ITU-T Rec. F.170)
|
http://www.itu.int/ITU-T/inr/bureaufax/index.html
|
Approval and deletion of ITU-T Recommendations
A.1 By TSB AAP-82 of 1 August 2004 it was announced that the following ITU-T Recommendations were approved, in accordance with the procedures outlined in ITU-T Recommendation A.8:
– ITU-T Recommendation G.780/Y.1351 (22/07/2004): Terms and definitions for synchronous digital hierarchy (SDH) networks
– ITU-T Recommendation G.820/I.351/Y.1501 (29/07/2004): Relationships among ISDN, IP based network, and physical layer performance Recommendations
– ITU-T Recommendation G.991.2 (2003) Amendment 1 (22/07/2004)
– ITU-T Recommendation G.7043/Y.1343 (22/07/2004): Virtual concatenation of PDH signals
– ITU-T Recommendation L.61 (29/07/2004): Optical fibre cable installation by floating technique
– ITU-T Recommendation M.3050.0 (22/07/2004): Enhanced Telecommunications Operations Map – Introduction
– ITU-T Recommendation X.1051 (29/07/2004): Information security management system – Requirements for telecommunications (ISMS-T)
– ITU-T Recommendation Y.1313 (22/07/2004): Layer 1 Virtual Private Network service and network architectures
A.2 By TSB Circular 248 of 15 July 2004, it was announced that the following ITU-T Recommendation was deleted, in accordance with the procedures outlined in ITU-T Recommendation A.8 § 8.2, of the WTSA (Montreal, 2000):
– ITU-T Recommendation I.371.1 (24/11/2000): Guaranteed frame rate ATM transfer capability
The conditions governing the deletion of this ITU-T Recommendation were met and 22 Member States and 35 Sector Members participating in the meeting of Study Group 13 (Geneva, from 3 to 12 February 2004) proposed to delete this ITU-T Recommendation. Eight Administrations of Member States responded to the consultation on 15 July 2004, and no objection to this deletion was received.
Telephone Service
Armenia (country code +374)
Communication of 4.VIII.2004:
ArmenTel JV (Armenia Telephone Company), Yerevan, announces the introduction of the following new numbering range in the Public Switched Telephone Network (PSTN) of ArmenTel:
Locality
|
Number range
|
Yerevan
|
+374 1 31 XX XX
|
Contact:
Mrs Hasmik Zakaryan
ArmenTel JV (Armenia Telephone Company)
International Communications Services Department
2
Aharonyan Street
375014 YEREVAN
Armenia
Tel: +374 1 289 787
Fax: +374 1 289 770
E-mail: jaszak@armentel.com
Israel (country code +972)
Communication of 8.VIII.2004
Bezeq International, Petach-Tikva, announces that the numbering format for international toll free services (ITF/HCD) will change from 1800 94X XXXX to 180 94X XXXX according to the following schedule:
7.IX.2004 New ITF/HCD activations will be according to the new format, i.e. 180 94X XXXX.
7.IX.2004 – 1.IX.2005 Old (1800 94X XXXX) and new (180 94X XXXX) formats will run in parallel.
1.IX.2005 – 1.XII.2005 Cessation of the old format. When an ITF/HCD number is dialled using the old format, an announcement in English and Hebrew will inform the caller to dial according to the new format.
1.XII.2005 The announcements will end.
Contact:
Igor Barakhmanov
Bezeq International
40 Hashacham St.,
Ramat Siv, PO Box 7778
49170 PETACH-TIKVA
Israel
Tel: +972 3 925 7813
Fax: +972 3 925 7220
E-mail: igorb@bezeqint.co.il
Or
Nili Katz
Bezeq International
40 Hashacham St.,
Ramat Siv, PO Box 7778
49170 PETACH-TIKVA
Israel
Tel: +972 3 925 7879
Fax: +972 3 925 7220
E-mail: nilik@bezeqint.co.il
Latvia (country code +371)
Communication of 4.VIII.2004
The
Public Utilities Commission, Riga, announces the following National Numbering Plan (NNP) in Latvia:
NDC (National Destination Code) or leading digits of N(S)N (National (Significant) Number)
|
N(S)N Number Length
|
Usage of E.164 number
|
Additional Information
|
|
Maximum length
|
Minimum
length
|
|
|
20
|
7
|
7
|
|
Reserve Index
|
21
|
7
|
7
|
|
Reserve Index
|
22
|
7
|
7
|
|
Index for transition to 8 digits number
|
NDC (National Destination Code) or leading digits of N(S)N (National (Significant) Number)
|
N(S)N Number Length
|
Usage of E.164 number
|
Additional Information
|
|
Maximum length
|
Minimum
length
|
|
|
23
|
7
|
7
|
|
Index for transition to 8 digits number
|
24
|
7
|
7
|
|
Index for transition to 8 digits number
|
25
|
7
|
7
|
|
Index for transition to 8 digits number
|
26
|
7
|
7
|
|
Reserve Index
|
27
|
7
|
7
|
|
Index for transition to 8 digits number
|
28
|
7
|
7
|
Geographic number – Area code for Riga region
|
|
29
|
7
|
7
|
Geographic number – Area code for Riga region
|
|
30
|
7
|
7
|
Geographic number – Area code for Jelgava region
|
|
31
|
7
|
7
|
Geographic number – Area code for Tukums region
|
|
32
|
7
|
7
|
Geographic number – Area code for Talsi region
|
|
33
|
7
|
7
|
Geographic number – Area code for Kuldiga region
|
|
34
|
7
|
7
|
Geographic number – Area code for Liepaja region
|
|
35
|
7
|
7
|
|
Reserve Index
|
36
|
7
|
7
|
Geographic number – Area code for Ventspils region
|
|
37
|
7
|
7
|
Geographic number – Area code for Dobele region
|
|
38
|
7
|
7
|
Geographic number – Area code for Saldus region
|
|
39
|
7
|
7
|
Geographic number – Area code for Bauska region
|
|
NDC (National Destination Code) or leading digits of N(S)N (National (Significant) Number)
|
N(S)N Number Length
|
Usage of E.164 number
|
Additional Information
|
|
Maximum length
|
Minimum
length
|
|
|
40
|
7
|
7
|
Geographic number – Area code for Limbazi region
|
|
41
|
7
|
7
|
Geographic number – Area code for Cesis region
|
|
42
|
7
|
7
|
Geographic number – Area code for Valmiera region
|
|
43
|
7
|
7
|
Geographic number – Area code for Aluksne region
|
|
44
|
7
|
7
|
Geographic number – Area code for Gulbene region
|
|
45
|
7
|
7
|
Geographic number – Area code for Balvi region
|
|
46
|
7
|
7
|
Geographic number – Area code for Rezekne region
|
|
47
|
7
|
7
|
Geographic number – Area code for Valka region
|
|
48
|
7
|
7
|
Geographic number – Area code for Madona region
|
|
49
|
7
|
7
|
|
Testing index
|
50
|
7
|
7
|
Geographic number – Area code for Ogre region
|
|
51
|
7
|
7
|
Geographic number – Area code for Aizkraukle region
|
|
52
|
7
|
7
|
Geographic number – Area code for Jekabpils region
|
|
53
|
7
|
7
|
Geographic number – Area code for Preili region
|
|
54
|
7
|
7
|
Geographic number – Area code for Daugavpils region
|
|
55
|
7
|
7
|
|
Index for transition to 8 digits number
|
56
|
7
|
7
|
Geographic number – Area code for Kraslava region
|
|
NDC (National Destination Code) or leading digits of N(S)N (National (Significant) Number)
|
N(S)N Number Length
|
Usage of E.164 number
|
Additional Information
|
|
Maximum length
|
Minimum
length
|
|
|
57
|
7
|
7
|
Geographic number – Area code for Ludza region
|
|
58
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
59
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
60
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
61
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
62
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
63
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
64
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
65
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
66
|
7
|
7
|
|
Index for transition to 8 digits number
|
67
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
68
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
69
|
7
|
7
|
|
Index for transition to 8 digits number
|
NDC (National Destination Code) or leading digits of N(S)N (National (Significant) Number)
|
N(S)N Number Length
|
Usage of E.164 number
|
Additional Information
|
|
Maximum length
|
Minimum
length
|
|
|
7
|
7
|
7
|
Geographic number – Area code for Riga region
|
|
80
|
7
|
7
|
Freephone Services
|
|
81
|
7
|
7
|
Shared cost services
|
|
82
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
83
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
84
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
85
|
7
|
7
|
Corporate/company/VPN numbering
|
|
86
|
7
|
7
|
Corporate/company/VPN numbering
|
|
87
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
88
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
89
|
7
|
7
|
Special services – Call to payphone, Virtual mail
|
|
90
|
7
|
7
|
Premium Rate Services numbering
|
|
91
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
92
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
93
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
NDC (National Destination Code) or leading digits of N(S)N (National (Significant) Number)
|
N(S)N Number Length
|
Usage of E.164 number
|
Additional Information
|
|
Maximum length
|
Minimum
length
|
|
|
94
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
95
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
96
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
97
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
98
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
99
|
7
|
7
|
Non-geographic number – Digital mobile telephony services
|
|
Contact:
Gundega Rutka
Public Utilities Commission of Latvia
Telecommunications and Post Department
Brivibas Street 55
RIGA LV-1010
Latvia
Tel: +371 7097240
Fax: +371 7097277
E-mail: gundega.rutka@sprk.gov.lv
Tonga (Country code +676)
Communication of 5.VIII.2004:
The
Prime Minister's Office, Department of Communications, Nuku’alofa,
announces that
Tonga Communications Corporation Ltd (TCC), Nuku’alofa, have been allocated the following numbering ranges for GSM cellular mobile services in the Kingdom of Tonga:
Name of exchange/service
|
Number range
|
U-Call (GSM 900)
|
53XXX
54XXX
55XXX
56XXX
57XXX
58XXX
59XXX
|
Administrations and recognized operating agencies (ROAs) are requested to update their networks to make access available to the new number ranges.
Contact:
Tonga Communications Corporation Ltd (TCC)
Private Bag 4
NUKU'ALOFA
Tonga
Tel: +676 26700
Fax: +676 26701
E-mail: info@kalianet.to
Telex Service
Japan
United States
Joint Communiqué of 10.VIII.2004:
KDDI Corporation, Tokyo (Japan) and
EasyLink Service Corp., Middletown VA (United States) announce in this joint communiqué the sale of KDDI telex service to EasyLink Service Corp. as from 1
st April 2005. As a result of the sale, the telex exchange system in Japan will no longer be available. EasyLink Service Corp. shall be managing all telex messages to and from Japan using the existing Telex Destination Code (TDC) “72” allocated to Japan (ITU-T Recommendation F.69), including the Telex Network Identification Code (TNIC) “J” allocated to Japan (ITU-T Recommendation F.68).
All telex service in Japan and transit telex services from other countries where EasyLink Service Corp. operates international telex service should be transited on their normal route to EasyLink telex networks who will provide a switching service to other destinations.
All international telex direct circuits, as well as transit via KDDI Corporation, will be taken out of operation from the cutover time.
Unter 1st April 2005, the international accounting procedure and the settlement of any outstanding payments of telex service will remain unchanged. After this date, all future settlements will be conducted with EasyLink Service Corp. directly.
For any questions regarding accounting and operational matters, please contact KDDI Corporation (Japan) and EasyLink Service Corp. (United States) at the following contact points:
– Operational and accounting matters:
Mr Atsushi Kajiura
KDDI Corporation
Telex Technical Department
KDDI Blidg.2-3-2, Nishishinjyuku
Shinjyuku-ku, 163-8003 TOKYO
Japan
Tel: +81 3 3347 5922
Fax: +81 3 3347 5981
E-mail: at-kajiura@kddi.com
– Accounting matters:
Mr Robert Sorbanelli
PTT Settlements Manager
EasyLink Service Corp.
Room 2120
33 Knightsbridge Road
PISCATAWAY, New Jersey 08854
United States
Tel: +1 732 652 3571
Fax: +1 732 352 7920
E-mail: bsorbanelli@easylink.com
– Operational matters:
Mr Simon Beygelman
EasyLink Service Corp.
MIDDLETOWN, VA
United States
Tel: +1 516 671 9100 (ext. 147)
Fax: +1 516 213 7840
E-mail: sbeygelman@easylink.com
Latvia
Switzerland
United Kingdom
Joint Communiqué of 20.VIII.2004*:
Lattelekom, Riga (Latvia),
Swisscom, Breganzona (Switzerland) and
E.C. Datacom Limited, London (United Kingdom)
announce in this joint communiqué that, starting from 1 October 2004, all telex traffic to and from Latvia will be routed via E.C. Datacom Limited gateway in London, which is directly connected to the telex networks of Swisscom.
The responsibility for international rates and settlements will reside with Swisscom, which will handle negotiations related to telex accounting rates on behalf of Lattelekom.
For any further information concerning the telex service in Latvia, please contact:
Mr Ivars Taunins
Manager of International Carrier Business
Lattelekom SIA
Valnu Street 30
RIGA – LV 1050
Latvia
Tel: +371 705 5432
Fax: +371 705 5300
E-mail: ivars.taunins@lattelekom.lv
Ms Paola Gianinazzi
Swisscom Fixnet Ltd
Fixnet Wholesale
Telex Operation Management
Switzerland
Tel: +41 91 807 9235
Fax: +41 91 807 9834
Telex: 45 840 000 cct ch
E-mail: paola.gianinazzi@swisscom.com
Mr David Banister
E.C. Datacom Limited
Platinum House
Gabriel Mews
LONDON NW2 2GD
United Kingdom
Tel: +44 20 8209 2100
Fax: +44 20 8209 2101
Telex: 21104 ECDATA G
____________
* This information cancels and replaces that published in ITU Operational Bulletin No. 764 of 15 May 2002, page 10.
Changes in Administrations/ROAs and other entities
or Organizations
Cameroon
Communication of 11.VIII.2004:
The
Agence de Régulation des Télécommunications (ART), Yaoundé, announces that, by Ministry of Posts and Telecommunications Decision No. 00179/MPT/SG/DPE of 7 October 2003, the Government of the Republic of Cameroon designated the incumbent operator
Cameroon Telecommunications (CAMTEL) as “Cameroon’s provisional local provider of access to the space segment” for a period of two (2) years, renewable once.
The address of CAMTEL is the following:
Monsieur le Directeur Général
Cameroon Telecommunications (CAMTEL)
B.P. 1571
YAOUNDÉ
Cameroun
Tel: +237 223 4065
Fax: +237 223 0303
Email: camtel@camnet.com
Contact:
Monsieur Jean-Louis Beh Mengue
Directeur Général
Agence de Régulation des Télécommunications (ART)
B.P. 6132
YAOUNDÉ
Cameroun
Tel: +237 223 0380
Fax: +237 223 3748
E-mail: art@camnet.cm
Qatar
Communication of 18.VIII.2004:
Qatar Telecom (Q-tel) Q.S.C., Doha, announces that the official title of its focal point,
Mr Hashem Mustafawi Al-Hashemi, has been changed to Executive Director – Group Communications.
For further information, please contact:
Mr Hashem Mustafawi Al-Hashemi
Executive Director
Group Communications
Qatar Telecom (Q-Tel) Q.S.C.
New Headquarters Tower
West Bay
P.O. Box 217
DOHA
Qatar
Tel: +974 440 0393 / +974 440 0838
Fax: +974 493 1919
E-mail: hashim@qtel.com.qa
Other communication
Austria
Communication of 10.VIII.2004:
On the occasion of the 50th Anniversary of the signing of the 1955 Austrian Treaty, the Austrian Administration authorizes their amateur stations to use a special call sign during the year 2005 formed by inserting to the normal call sign the digits 5 and 0 immediately after the national prefix (for example: OE50CA).
Algeria (621), Netherlands Antilles (627), Saudi Arabia (629), Azerbaijan (663), Bahrain (611), Belarus (616), Bosnia and Herzegovina (772), Bulgaria (665), Burkina Faso (631), Burundi (607), Cameroon (671), China (599), Cyprus (626), Colombia (602), Cook Islands (681), Cuba (632), Djibouti (614), Egypt (599, 690), United Arab Emirates (627), Ecuador (619), Ethiopia (657), Gabon (631), Guinea (681), Honduras (613), India (627), Jamaica (648), Japan (649), Jordan (652), Kazakhstan (619), Kenya (605), Kyrgyzstan (616), Kuwait (610), Latvia (617), Lebanon (642), Madagascar (639), Malaysia (603), Malta (688), Morocco (619), Mexico (697), Monaco (749), Niger (618), Nigeria (647), Uganda (603), Qatar (593), Dem. Rep. of the Congo (672), Seychelles (631), Sudan (686), South Africa (655), Tanzania (624), Thailand (611), Turkey (612), Viet Nam (619), Wallis and Futuna (649), Yemen (622).
In addition, the following countries/geographical areas stated that the practice of “Call-Back” is prohibited on their territory:
Bahamas, Belize, Benin, Botswana, Brazil, Brunei Darussalam, Cambodia, Central African Rep., Comoros, Costa Rica, Côte d’Ivoire, Dominica, Eritrea, Fiji, Gambia, Ghana, Greece, Haiti, Hungary, Indonesia, Iran (Islamic Republic of), Ireland, Israel, Lesotho, The Former Yugoslav Republic of Macedonia, Macao (China), Malawi, Mali, Mauritius, Moldova, New Caledonia, Nicaragua, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Romania, Samoa, Slovakia, Suriname, Syrian Arab Republic, Chad, Tonga, Tunisia, Tuvalu, Vanuatu, Venezuela, Zambia.
This information is the result of a survey made by ITU-T Study Group 3 in accordance with Resolution 21 (Rev. Minneapolis, 1998) of the Plenipotentiary Conference (Minneapolis, 1998) and Resolution 29 of the World Telecommunication Standardization Assembly, WTSA-2000 (Montreal, 2000).
All the countries/geographical areas which prohibit or allow the practice of “Call-Back” are listed on the ITU Website at the following address: http://www.itu.int/itudoc/itu t/com3/callback/ position.html
ISPC: International Signalling Point Codes.
Códigos de puntos de señalización internacional (CPSI).
