ITU-T - Q.83.1
Call Completion Supplementary Services - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 33 pp
inactive
| Organization: | ITU-T |
| Publication Date: | 1 January 1989 |
| Status: | inactive |
| Page Count: | 28 |
Document History
September 1, 1991
STAGE 2 DESCRIPTION FOR CALL COMPLETION SUPPLEMENTARY SERVICES SECTION 1 - CALL WAITING (CW)
This Recommendation defines the stage 2 of the integrated services digital network (ISDN) as provided for the call waiting (CW) supplementary service. Stage 2 identifies the functional capabilities...
Q.83.1
January 1, 1989
Call Completion Supplementary Services - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 33 pp
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