AT&T Merlin 820 Service And Maintenance Manual page 59

Trouble on More Than One Voice Terminal
From a voice terminal, try to make an outside call on the line with trou-
Step 3.
ble.
IF
The trouble is still present,
The trouble is no longer present,
At the auxiliary device (for example, telephone answering service), discon-
Step 4.
nect the modular line cord (see Figure 25).
LINE BRIDGING
ADAPTER
(267A2)
Figure 25—Disconnecting Auxiliary Device
Page 56
Skip to Step 7.
Return the cords and line bridging
adapter to their original position.
Then go on to Step 4.
TO CONTROL UNIT
DISCONNECT THE
LINE CORD HERE
MODULAR
LINE CORD
(D4CH)
THEN
AUX.
DEVICE