Patent classifications
H
ELECTRICITY
Load children
H04
ELECTRIC COMMUNICATION TECHNIQUE
Load children
H04M
TELEPHONIC COMMUNICATION
Load children
7/00
Arrangements for interconnection between switching centres
Load children Filter patents View analytics View as hierarchy
H04M7/006
Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer
Load children Filter patents View analytics View as hierarchy
H04M7/0066
Details of access arrangements to the networks
Load children Filter patents View analytics View as hierarchy