Patent ID: 7227654

Claim:
A facsimile communication method for performing a Group 3 facsimile communications operation using an optional frame signal, comprising: providing a facsimile apparatus with a memory which prestores identification information for a plurality of different facsimile machines having common specifications of optional frames; receiving a call from a calling facsimile machine for a facsimile communications operation using an optional frame and identification information of said calling facsimile machine, wherein said identification information of said calling facsimile machine identifies said calling facsimile machine; comparing said identification information of said calling facsimile machine with the identification information prestored in said memory; canceling performance of the facsimile communications operation using the optional frame and executing standard facsimile operations that do not use the optional frame, when said identification information of said calling facsimile machine does not correspond with the identification information prestored in said memory; and executing the facsimile communications operation using the optional frame when said identification information of said calling facsimile machine corresponds to the identification information prestored in said memory.