Epson Multi-mode Data Controller MFJ-1278B - Manual (Page 205)

MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS
CONOK ON/OFF Mode: Packet Default: ON
Parameters:
ON
Connect requests from other TNCs will be accepted.
OFF
Connect requests from other TNCs will be rejected.
This command determines the action taken by the MFJ-1278B when a connect request for it
is received though the radio. If CONOK is ON, the request will be acknowledged, the
standard connect message will be typed and either Converse or Transparent Mode will be
entered, depending on the setting of CONMODE.
If CONOK is OFF and the MFJ-1278B is not in Transparent Mode, the TNC will notify you
of the connect attempt with the following message.
connect request: <call>
The callsign of the station trying to connect will replace <call>.
All connect requests from stations with totally blank callsigns are rejected with a busy
response.
The MFJ-1278B will also issue a DM packet, or "busy signal" to the requesting station. The
user may then issue his own connect command. If the MFJ-1278B receives a DM packet in
response to a connect request, it will type the message
*** <call> station busy
with the callsign of the station that sent the DM packet in place of <call>.
For example, if you want to leave your station running as a digipeater you might set CONOK
OFF until you are ready for a conversation. If you get a connect request in the meantime,
you can change your mind. Stations attempting to connect to your MFJ-1278B will be able
to see that the station is up but not available for connection (it might still be useful as a
digipeater).