ITU-T Q.953.3-1997
Stage 3 Description for Call Completion Supplementary Services Using DSS 1: Completion of Calls to Busy Subscribers (CCBS) - Series Q: Switching and Signalling Digital Subscriber Signalling System No. 1 - Stage 3 Description for Supplementary Services Usi

Standard No.

ITU-T Q.953.3-1997

Release Date

1997

Published By

International Telecommunication Union (ITU)

Latest

ITU-T Q.953.3-1997

Scope

This Recommendation specifies the stage three of the Completion of Calls to Busy Subscribers (CCBS) supplementary service for the Integrated Services Digital Network (ISDN) at the T reference point or coincident S and T reference point (as defined in Reco

ITU-T Q.953.3-1997 history

• 1997 ITU-T Q.953.3-1997 Stage 3 Description for Call Completion Supplementary Services Using DSS 1: Completion of Calls to Busy Subscribers (CCBS) - Series Q: Switching and Signalling Digital Subscriber Signalling System No. 1 - Stage 3 Description for Supplementary Services Usi