AnnouncementNovember 13, 1996
No. BIA-3a (Formerly SIA-3a)
Subject:
Universal International Freephone Number
(UIFN) Format
Bell Canada announces the planned introduction of a new universal toll
free code "800" for UIFN. This code will be substituted for the country code on
International Direct Dialed calls. Subject to market demand, this service is expected to
be available by IQ97.
The UIFN dialing structure is based on ITU-T Recommendation E.169, and
provides a universal format which is distinct from the North American toll-free format. A
UIFN is composed of the international dialing code (011 for Canada), followed by the
three-digit UIFN code, followed by an eight-digit Global Subscriber Number, resulting in a
fixed format, e.g., 011-800-1234-7789.
Other information, such as the original dialed number, will be
converted to the format 8XX-NXX-XXXX, and presented according to existing arrangements.
This would apply, for example, to BCLID service previously disclosed in TAPAC Bulletin
92-10 (July 20, 1992), and to Advantage 800 Call Detail service previously disclosed in
TAPAC Bulletin 95-08 (dated September 5, 1995).
Compatibility Impact:
Calling Line ID display Terminals are not expected to be impacted
because the number of digits remains the same and the characters are transmitted in the
traditional ASCII format.
Calling Line ID for incoming calls will
have the format 700 PCC 0155, where PCC is the Pseudo Country Code which identifies the
originating Country and Carrier.
Similarly, there is no expected impact on Alternate Providers of Long
Distance Service (APLDS). The routing of UIFN calls originating in Canada will be based on
existing equal access arrangements with the respective APLDS. The format of the
information passed to the APLDS will be the same as that of existing IDD calls.
Documentation:
Additional information on the numbering format may be obtained from
ITU-T Recommendation E.169.
This document can be obtained from
the ITU (International Telecommunications Union) http://www.itu.int/
or from Global Info Centre at 613-237-4250.
For further information on the service, please contact:
Bell Canada
Director - Interface Standards Research
160 Elgin St., Room 640
Ottawa, Ontario, K1G 3J4 Canada
Tel: (in Canada) 1-877-77-TELCO (83526)
Tel: (Worldwide) (613) 781-7393
Fax: (613) 781-1658
Email: disclosure@bell.cdn-telco.com
