Networks other than pstn/isdn providing telephone service

Official title: {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 (H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42)}

H04M7/006 (Networks other than pstn/isdn providing telephone service) appears on 5,890 US grants and 5,848 published applications in this corpus.