A service module is provided for use in a mobile communications system.
The service module provides services to a calling user such as an
answering service comprising several individual mailboxes. In various
situations, the service module can automatically forward an incoming call
to the desired mailbox by using an identification code to allow the user
to retrieve or deposit messages. In other situations, the service module
is responsive to an indicator during the call by which the user can
indicate that the service module did not receive a correct identification
code and is therefore required to prompt the user to enter the correct
identification code. In other situations, the service module is
responsive to an indicator during the call by which the user can indicate
whether he/she desires to retrieve a message from his/her mailbox or to
deposit a message in another user's mailbox.