System and method for interfacing a cordless handset with a main telephone set in a radio switching system

A method of communicating via a private radio switching system which comprises a cordless handset for communicating with a main switching apparatus of the switching system via a base station, and a main telephone set having a display and a plurality of functions, the method comprising the steps of:

• transmitting operational data generated by the cordless handset to the main telephone set by an output port on the handset in contact with an input port on the main telephone set;
• displaying a message on the display of the main telephone set that corresponds to the operational data on the display of the main telephone set;
• transmitting data entered at the main telephone set to the cordless handset by an output port on the main telephone set in contact with an input port on the cordless handset;
• and
• transmitting data from the cordless handset to the main switching apparatus according to the data entered at the cordless handset.

A private radio switching system comprising:

• a cordless handset that supports radio communication;
• a base station that interfaces with the cordless handset via radio communication;
• a main telephone set having a display and a plurality of functions, the main telephone set operationally interfacing with the cordless handset, the main telephone set receiving input generated by the handset via the operational interface and displaying a message on the display corresponding to the state of the cordless handset, the main telephone set outputting data entered at the main telephone set to the cordless handset via the operational interface;
• and
• a main switching apparatus that electronically interfaces with the base station, the main switching apparatus receiving switching signals transmitted by the cordless handset via the base station, the switching signals generated by the cordless handset according to the data received from the main telephone set.