Abstract: A remote wireless intercom and other devices for communicating with a cordless telephone system are disclosed. The remote wireless intercom includes a transmitter, a receiver, a speaker, a microphone, a battery interface, and a housing which carries these components. A method of communicating between the remote wireless intercom and a cordless telephone device involves the steps of detecting an intercom voice communication request at the remote wireless intercom; wirelessly transmitting the intercom voice communication request from the remote wireless intercom to the a cordless telephone device; and engaging the remote wireless intercom in an intercom voice communication session with the cordless telephone device after transmitting the intercom voice communication request. Preferably, the cordless telephone device is a cordless base station and the intercom voice communication session takes place between the remote wireless intercom and a cordless telephone.

Abstract: A method of simultaneously communicating voice and data on the same channel in an analog cordless telephone system involves generating an analog signal from an audible voice signal during a cordless telephone call; generating a frequency shift keying (FSK) signal from digital data having a nominal frequency of about 20 KHz; summing the analog signal and the FSK signal to produce a composite analog and digital signal; modulating a radio frequency (RF) carrier with the composite analog and digital signal to produce a modulated RF carrier; and transmitting the modulated RF carrier.