INSYS 56k Small INT 2.0, Руководство по эксплуатации

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Functions INSYS Modem 56k small INT 2.0/USB 1.0
36 June 06
5.10 Priority Circuit for Modems with Phones Connected in Series
The INSYS Modem 56k small INT gives a phone connected
in series priority, to make sure it interferes as little as possi-
ble with the usage of the phone connection.
Command Function 1 Function 2 Function 3
(Chap. 5.10.1) (Chap. 5.10.2) (Chap.
5.10.3)
AT-STE=0 == == == (default)
AT-STE=1
√
== ==
AT-STE=2 ==
√
==
AT-STE=3
√ √
==
AT-STE=4 == ==
√
AT-STE=5
√
==
√
AT-STE=6 ==
√ √
AT-STE=7
√ √ √
5.10.1 Detecting a busy phone line
During a dial-up attempt, the model detects the busy
phone line. The modem reports
Changing the loop voltage to detect the function – Detec-
tion of a busy line (
U1 ) – can be set with the help of AT
commands.
U1
Loop voltage prior
to the connection.
Voltage
Loop voltage for
busy phone line.
Time
LINE IN USE
AT-TTE=U1,
U2, U3