Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04M
TELEPHONIC COMMUNICATION
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2215/00
Metering arrangements; Time controlling arrangements; Time indicating arrangements
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H04M2215/20
Technology dependant metering
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H04M2215/208
IMS, i.e. Integrated Multimedia messaging Subsystem
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H04M2215/208

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.