COMSPHERE 3800Plus Modems
5-4 October 1998 3980-A2-GB30-40
For example, under normal dial backup conditions,
when a problem occurs on the leased line, the modems
establish a connection over the dial network using a
telephone number stored in directory location 1.
F1
Call Setup:
Dial Standby
F2 F3
When this occurs, the Dial Standby function now
appears on the LCD. By selecting this function, the
modem switches back to the leased line while still
maintaining the dial connection. As a result, the Return to
Dial function now appears on the LCD instead of Dial
Standby.
F1
Call Setup:
Return_to_Dial
F2 F3
If the leased line is found to be unacceptable, select
Return to Dial which switches the modem back to dial
network operation (LCD displays Dial Standby). If,
however, the leased line is operating properly, you can
select Disconnect from the Call Setup branch and drop the
dial-line call.
To access Dial Standby or Return to Dial from the Call
Setup branch, make the following selections:
F1
Call Setup:
Dial Standby
F2 F3
Press the key until Dial Standby or Return to Dial
is displayed. Select the appropriate function.
F1
Dial Standby
Command Complete
F2 F3
If the modem is operating in a Dial Backup mode, the
Dial Standby function forces the modem to leased lines
and displays the status message Command Complete.
Once the modem is in Dial Standby mode, the Return
to Dial function appears on the LCD. Selecting this
function forces the modem to dial networks and displays
the status message Command Complete.
AT Command Equivalent
There is no AT Command equivalent for Dial Standby
or Return to Dial.
Change Directory
Change Directory allows you to enter or modify
telephone numbers. The modem has nonvolatile memory
locations that allow you to store up to 10 telephone
numbers. Each directory location can accept up to
40 characters; this includes the telephone number and dial
command modifiers. Any telephone number dialed using
the DCP Dial command must appear in a directory
location.
NOTE
If the modem is operating on
leased lines and has a dial line
attached for dial backup
purposes, it is required that
directory location 1 contain the
telephone number used for dial
backup.