Nortel M2000 Reference Manual page 78

4 Screen Display from Main Menu:
TYPE SPEED NUMBER THEN PRESS RETURN.
5 Type:
nnnnn
(CR)
Response: User enters Speed Call directory number.
6 Screen Display from Main Menu:
Main menu
Response: System returns to Main Menu.
Use Procedure 10 to verify the integrity of the data and signaling
channels of the data loop. When the user activates Remote Loopback
(RLB), the user's data loops through the called data device's RS-232-C
interface back to the user's Data Terminal Equipment (DTE). After RLB
is set, the user's next data call character input echoes back to the user's
screen, which verifies proper operation of the data loop.
Loopback tests can be made over digital trunks, but cannot be used
with modem pooling. RLB must be set before the data call is placed.
Procedure 10 Set or reset remote loopback operation
1 Type:
M
(CR)
Screen Display from Main Menu:
Modify menu
Response: System displays Modify Menu.
2 Type:
R
(CR)
Screen Display from Main Menu:
REMOTE LOOPBACK? TYPE Y or N.
Response: User selects Remote Loopback feature.
3 Type:
Y
Meridian SL-100 M2000 Digital Telephone Reference Manual
Keyboard dialing 11