ITU-T Q.731.4
Stage 3 description for number identification supplementary services using Signalling System No. 7 – Calling line identification restriction
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| Organization: | ITU-T |
| Publication Date: | 1 April 2019 |
| Status: | active |
| Page Count: | 16 |
scope:
This Recommendation provides a signalling procedure for calling line identification restriction (CLIR). It specifies service description, coding requirements and operation requirements of CLIR. It also presents the signalling requirements for originating local exchange, transit exchange, international gateway exchange and destination local exchange. Interaction with other supplementary services, interaction with other networks and dynamic description are also considered.
Document History
ITU-T Q.731.4
April 1, 2019
Stage 3 description for number identification supplementary services using Signalling System No. 7 – Calling line identification restriction
This Recommendation provides a signalling procedure for calling line identification restriction (CLIR). It specifies service description, coding requirements and operation requirements of CLIR. It...
March 1, 1993
STAGE 3 DESCRIPTION FOR NUMBER IDENTIFICATION SUPPLEMENTARY SERVICES USING SIGNALLING SYSTEM No. 7 - CLAUSE 4 - CALLING LINE IDENTIFICATION RESTRICTION (CLIR)
FOREWORD
The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the International Telecommunication Union. The ITU-T is responsible for studying technical, operating and...