| Custom Local Area Signaling Services |
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Information AboutCustom Local Area Signaling Services |
| CATEGORIES ABOUT CUSTOM LOCAL AREA SIGNALING SERVICES | |
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The services rely on the ITU-T standard Signalling System 7 (SS7) connectivity between network switches (SSPs) and databases (800 Database, LNPDB, LIDB, etc.) to operate. The CLASS standards were defined by Bellcore in the 1970s. Other services such as call forwarding, three-way calling, call waiting, or speed dialing are part of custom calling rather than CLASS. |
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