ITU-T E.132-1988
Standardization of Elements of Control Procedures for Supplementary Telephone Services - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp

Standard No.

ITU-T E.132-1988

Release Date

1988

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Replace By

ITU-T E.132-1993

Latest

ITU-T E.132-1993

Scope

CCIT? Recommendation E.13 1 describes, in the form of code schemes, three subscriber control procedures for supplementary telephone services. In order to avoid undesirable proliferation of different types of control procedures, it recommends that Administ

ITU-T E.132-1988 history

• 1993 ITU-T E.132-1993 Standardization of Elements of Control Procedures for Supplementary Telephone Services
• 1988 ITU-T E.132-1988 Standardization of Elements of Control Procedures for Supplementary Telephone Services - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp