ITU-T I.250
Definition of Supplementary Services - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 6 pp
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| Organization: | ITU-T |
| Publication Date: | 1 November 1988 |
| Status: | inactive |
| Page Count: | 6 |
Document History
January 1, 1993
DEFINITION OF SUPPLEMENTARY SERVICES
General
Recommendation I.210 describes the principles for defining telecommunication services supported by an ISDN including the concept of bearer services, teleservices and supplementary services....
ITU-T I.250
November 1, 1988
Definition of Supplementary Services - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 6 pp
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