Hookswitch bounce resistant telephone hold-mute circuit

Hospital communication system

Hospital telephone and device controller

Hospitality remote access server gateway

Hot cut procedure for telecommunications network

Hotel pbx electronic message billing arrangement

Hotel pbx electronic message billing arrangement

Housing for a telephone unit

Howling controller

Human machine interface for telephone feature invocation

Human machine interface for telephone feature invocation

Hybrid access architecture for voice messaging systems

Hybrid alphanumeric telephone directory

Hybrid alphanumeric telephone directory

Hybrid circuit

Hybrid circuit

Hybrid circuit having a two-wire/four-wire converting function

Hybrid recording of communications

Hybrid telephony device

Hybrid wireless telephone and wireless telephone station