Helmholz 700-751-HSM11, Руководство пользователя, Страница: 65 / 99

Helmholz Modem 56k 4.1 65
Command Description
AT-STE=<n>
Priority Circuit for Modems with Phones Connected in Series
The HELMHOLZ Modem 56k 4.1 gives a phone connected in series priority, to
make sure it interferes as little as possible with the usage of the phone connection.
(see Chapter 5.10)
Monitoring Functions:
1) Detecting a busy phone line
During a dial-up attempt, the model detects the busy phone line. (
LINE IN
USE
).
2) Going off-hook on account of a telephone connected in series
If a telephone connected in series goes off-hook during an existing modem
connection, the modem will immediately terminate the connection.
The telephone is connected to the line and receives a dialing tone.
3) Remote terminal connection abort
When the remote terminal aborts a connection, the modem will
immediately hang up.
Command Function 1 Function 2 Function 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
√ √ √
ATT
Switching on inband signaling
Starting with this command, each dial up is performed with the tone dialing me-
thod, until an
ATP
or
ATDP
command switches it back to pulse dialing.
AT-TRV
Phone Line Voltage Measurement (Tip Ring Voltage)
Use the command AT-TRV to measure the phone line voltage (Tip Ring Voltage).
The result is yielded in volt. For an existing connection the voltage range will be
5V – 12V. Otherwise the voltage is higher than 20V. If the voltages are lower than
2V, no phone line is connected.