Boca Systems PRO/6, Installation Manual

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50
BOCA PRO16
Calling and Answering Using &L1
When operating in smart mode (&L1 set), the ATD and ATA
commands are used to initiate and answer calls respectively.
NOTE: Your modem will hang up and return to local command
state if your computer transmits characters while the modem is
attempting to establish or re-establish a connection (unless
&N0
has been issued).
Auto Leased Line Operation (&L2 or &L3)
You can select Auto leased line operation with the &L2 or &L3
command. In Auto leased line operation you do not need to
issue the ATA command to answer a call, or the ATD command
to initiate a call. Issue the &L2 command to automatically
select Originate mode, or the &L3 command to automatically
select Answer mode.
In Auto leased line operation AT commands can only be
entered while DTR is low. Irrespective of the &D setting, your
modem will remain in idle mode when DTR is low, and will go
on-line when DTR is high and the modem’s TALK/DATA
switch is set to DATA. If DTR is lowered (or the TALK/DATA
switch is set to TALK) when your modem is on-line, it will
hang up and return to idle mode. If power is lost, your modem
will enter on-line state when DTR is restored.
NOTE: Your communications software must be capable of
altering the state of the DTR signal to work successfully with
the &L2 and &L3 commands. If your modem has a TALK/
DATA switch, it must be set to DATA.