ITU-T Q.133-1989
Numbering for Access to Automatic Measuring and Testing Devices - Specifications of Signalling Systems Nos. 4 and 5 (Study Group XI) 1 pp

Standard No.

ITU-T Q.133-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T Q.133-1989

Scope

The allocation of the digits in e) above will enable access to be given to a number of different types of measuring or testing equipment. Combination 51 to combination 59 are allocated to automatic transmission measuring devices standardized by the CCITT

ITU-T Q.133-1989 history

• 1989 ITU-T Q.133-1989 Numbering for Access to Automatic Measuring and Testing Devices - Specifications of Signalling Systems Nos. 4 and 5 (Study Group XI) 1 pp