About this document
Enhancements for SS7 ISDN Number Portability by 19920921 is a document available to read on EtoBox.
This document from the International Telecommunication Union provides specifications for enhancements to Signalling System No. 7 - ISDN User Part to support number portability. The enhancements allow subscribers to retain their phone numbers when changing networks or service providers.
- Author
- 19920921
- Language
- EN