Ericsson ZAT 19.2 Operation Manual page 238

=>Select MANUAL or AUTO dial backup.
C021 Dial backup
Manual!
+JO
Auto +J1
\f AUTO is selected you must ensure that switched line also is
connected to the modem for dial backup use.
= Set the criteria for the operation.
C056 [Dial backup criteria? |+8DA+8DB |
= Select time-out for re-establishing the leased line connection.
=>Set the modem to operate in leased line by selecting
=Remember to store the configuration into a profile.
C051 Store configuration?
Profile-O &WO
Profile-1 &W1
C052 Profile to use at Power up?
0 &YO
1 &Y1
11.1.2 Set-up using AT commands :
= Select leased line with:
AT&L1 pfs] ©
If 4 wire leased line is to be used:
Select channel to use
AT+&LCOp™| -
Use answer mode when leased fine
or
AT+&LCip|
Use call-mode when leased line
=lf 108.1 Control is to be used:
AT+E1p|
= Store the leased line configuration into a user profile:
AT&W&Y el
1 1 -2 LZTR104006 R1.00
Zat 14.4/14.4-7 and 19.2/19.2-7