Communication apparatus for selecting a communication protocol compatible to a partner station and executing the selected protocol

Abstract

A communication apparatus comprises a first detection circuit for detecting a call signal, a second detection circuit for detecting information of a partner station sent between call signals, a memory circuit for storing information of a communication system of the partner station in association with the information of the partner station, and a circuit for reading the information of the communication system for the detected information of the partner station from said memory circuit in accordance with the information of the partner station detected by said second detection circuit at the time of the detection of the call signal and executing the communication protocol in accordance with the read information of the communication system.

Dependencies are inferred from the claim text.