Arrangement and method for selecting an available communication channel for a cordless telephone

Abstract From the Canadian patent

A channel scanning arrangement for automatically selecting an available one from multiple communication channels with a minimum probability of interference and without delay is provided for a cordless telephone. This arrangement avoids causing and receiving interference on a channel by scanning all available channels when the cordless telephone is not in use and prioritizing these channels in the order of most recent observed activity. When a user of a handset unit associated with the cordless telephone desires to communicate with a base unit also, associated with the telephone, the handset and base units communicate briefly on the last used channel. When communication between the handset …