Boca Systems PRO/6, Руководство по установке

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BOCA PRO16
Leased Line Operations
A leased line, or private line, is a telephone line that
permanently connects two or more locations. The leased line
does not have any switching equipment associated with it.
Leased-line operation with the modem is selected with the &L
command.
The &L command informs your modem that communications
will occur over leased lines, with no answer tones being
generated by the modem. If the modem detects a loss of the
remote carrier signal while leased-line operation is selected, it
will attempt to re-establish the connection rather than hang up.
If you select leased line operation with the &L1 command, you
must issue the ATA command to answer a call, and the ATD
command to initiate a call.
If you use &L2 or &L3 to select Auto leased line operation, you
do not need to issue the ATA or ATD commands; &L2 selects
Originate mode automatically and &L3 selects Answer mode
automatically. To dial or answer, raise DTR; to return to local
command state, lower DTR.
NOTE: You will require a special phone cable (available from
your dealer) to connect your modem to a leased-line socket.
The phone cable supplied with your modem is suitable for use
with normal, dial-up, voice (PBX) lines.
Before commencing leased-line communications, it is
recommended that a non-auto-ranging B setting be specified.