In Release 2 or later, any port on the
MERLIN Messaging System can be used to access the Remote Maintenance Device (RMD)
(also referred to as a modem) by entering
after the MERLIN Messaging System has answered a call. In Release 1.1, and in
Release 2 or later in which the licensed port configuration is 10 ports or less,
the RMD can also be accessed by connection to Port 12 on the MERLIN Messaging
System.