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ITU-T Q.2957.1
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ITU-T Q.2957.1
Stage 3 description for additional information transfer supplementary services using B-ISDN digital subscriber signalling system No. 2 (DSS2) - Basic call : User-to-user signalling (UUS)More info
This Recommendation defines the operation of the Digital subscriber Signalling System No. 2 (DSS 2) for the support of the User-to-User Signalling (UUS) supplementary service at the TB or the coincident SB and TB reference point of the user to network interface of the Broadband-Integrated Services Digital Network (B-ISDN). The User-to-User Signalling (UUS) supplementary service allows a B-ISDN user to send and receive a limited amount of information to/from another B-ISDN user over the signalling virtual channel in association with a call/connection to the other B-ISDN user
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.30 : Switching and signalling systems
33.080 : Integrated Services Digital Network (ISDN) |
| Cross references | ETS 300668-1:1996 en (1996-09-01), NEQ |
| Year | 1990 |
| Document history | |
| Country | International |
| Keyword | CCITT Q.2957;CCITT Q.2957.1;ITU-T Q.2957;ITU-T 2957;2957;ITU-T Q.2957.1 |