ITU-T Q.951.4
STAGE 3 DESCRIPTION FOR NUMBER IDENTIFICATION SUPPLEMENTARY SERVICES USING DSS 1 - Clause 4 - Calling Line Identification Restriction (CLIR)
| Organization: | ITU-T |
| Publication Date: | 1 March 1993 |
| Status: | active |
| Page Count: | 38 |
scope:
This annex specifies additional procedures to be supported for the delivery of two Calling party number information elements to the served user. The support of these procedures (or of a part of these) is a network option.
These additional features shall have no impact and shall place no requirement whatsoever on the provision and operation of the CLIP supplementary service defined in this Recommendation by public ISDNs that do not support these additional features, nor on the interchangeability of terminals.
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