ITU-T E.132
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
inactive
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| Organization: | ITU-T |
| Publication Date: | 1 November 1988 |
| Status: | inactive |
| Page Count: | 2 |
Document History
January 1, 1993
Standardization of Elements of Control Procedures for Supplementary Telephone Services
General
CCITT Recommendation E.131 describes, in the form of code schemes, three subscriber control procedures for supplementary telephone services. In order to avoid undesirable proliferation of...
ITU-T E.132
November 1, 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
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