ITU-T I.253.3
Call Completion Supplementary Services: Completion of Calls to Busy Subscribers - Series I: Integrated Services Digital Network; Service Capabilities - Supplementary Services in ISDN
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| Organization: | ITU-T |
| Publication Date: | 1 July 1996 |
| Status: | active |
| Page Count: | 29 |
Document History
ITU-T I.253.3
July 1, 1996
Call Completion Supplementary Services: Completion of Calls to Busy Subscribers - Series I: Integrated Services Digital Network; Service Capabilities - Supplementary Services in ISDN
A description is not available for this item.
January 1, 1988
Completion of Calls to Busy Subscribers - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities (Study Group XVIII) 3 pp
A description is not available for this item.