Mode signalling method and apparatus

Modem

Modem and method for switching operation modes thereof

Modem apparatus

Modem apparatus and data communication method

Modem apparatus comprising ringing signal detector for outputtin

Modem apparatus with storage means for storing communication pro

Modem apparatus, communication control apparatus,...

Modem compression system for telephone network

Modem coupler for multi-line key telephone system

Modem data call bypass of a telephone network voice switch

Modem for communicating at high speed over voice-grade telephone

Modem for effecting full duplex asynchronous/synchronous digital

Modem for tight coupling between a computer and a cellular telep

Modem for tight coupling between a computer and a cellular telep

Modem function incorporated in a programmable logic controller

Modem having a programmable universal data access arrangement

Modem having separate modem engine and data access arrangement

Modem including a device for detecting the busy state of a...

Modem management techniques