ETSI - PRETS 300 437-1
Broadband Integrated Services Digital Network (B-ISDN); Signalling ATM Adaptation Layer (SAAL) Service Specific Co-Ordination Function (SSCF) for Support of Signalling at the User-Network Interface (UNI) Part 1: Specification of SSCF at UNI (ITU-T
| Organization: | ETSI |
| Publication Date: | 1 January 1995 |
| Status: | inactive |
| Page Count: | 5 |
scope:
This European Telecommunication Standard (ETS) specifies the Service Specific Co-ordination Function (SSCF) for support of signalling at the User-Network Interface (UNI) for the pan-European Broadband Integrated Services Digital Network (B-ISDN) as provided by European public telecommunications operators.
The SSCF at UNI is a function which is part of the Signalling ATM Adaptation Layer (SAAL) at the UNI of the B-ISDN. This function is used to map the service of the Service Specific Connection Oriented Protocol (SSCOP) of the AAL to the needs of layer 3 protocols for access signalling across the UNI.
This ETS covers the aspects of the SSCF of the complete AAL structure for signalling applications at the UNI defined in ITU-T Recommendation Q.2100 [8], and describes the relationship to the protocol entity for access signalling specified in ETS 300 443-1 [12] and the SSCOP specified in ETS 300 436-1 [11].
This ETS is applicable to equipment to be attached at either side of the B-ISDN UNI when B-ISDN access signalling is to be supported.
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