Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04Q
SELECTING
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2213/00
Indexing scheme relating to selecting arrangements in general and for multiplex systems
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H04Q2213/13204

Calling line/name identification of enterprise subscribers in mobile calls
12425814 · 2025-09-23 · ·

A system, server, and method of DTMF detection in a VoIP network.