Patent ID: 7187463

Claim:
A communication apparatus, comprising: first storing means for storing registration information including registration information groups identified by a plurality of attributes; first accepting means for accepting a selection of an attribute of a registration information group required to be erased; first extracting means for extracting information of said registration information group having said attribute the selection of which is accepted by said first accepting means; first erasing means for erasing the information of said registration information group extracted by said first extracting means; and determining means for determining as to whether the registration information group required to be erased includes information reserved for use in a communication job when said erasing means executes an erasing operation, wherein said first erasing means erases at one time the information of the registration information group extracted by said first extracting means when said determining means determines as that the information of said registration information group required to be erased does not include information reserved for use in a communication job, and said first erasing means erases at one time the information of the registration information group extracted by said first extracting means, excluding said information reserved for use in a communication job, when said determining means determines as that the information of said registration information group required to be erased includes information reserved for use in the communication job.