Command Reference - Stollmann

TA+USBA Command Reference 1.01/06.2007
2. Using the TA+USB
To enter the AT command mode during an active data connection you must use the
following sequence ("Escape sequence"):
1.
2.
3.
The time gap between all three plus signs may not exceed 1 sec.
The escape sequence is transmitted transparent to the remote device.
Note: If B channel protocol PPPasync (ATB3) is selected, the escape sequence has
to be included in an asynchronous HDLC frame. The coding of the complete
asynchronous sequence is: 7E 2B 2B 2B 1B B4 7E.
The timeout after sending the "escape sequence" will increase in
terms of the configuration parameter "txfwd". The default value of "txfwd" is
set to "0" (“0” = 4 character timeout).
If "txfwd=100" (equals 1 second), the timeout of receiving the "OK" message
will be around 2 seconds.
Supported commands:
A/ Repeat last command line
This command repeats the commands of the last entered command line.
Note: No prefix AT is required.
A/
A
Accept incoming call
Using this command you can accept an incoming call, if automatic call acceptance is
not set (Register S0 = 0). An incoming call is displayed by the message “RING“ or
the code “2“.
The time interval to display the incoming call (“RING” or “2”) can be configured with
the S-register S80. The default value is set to “S80=50” which is equivalent to 5
seconds.
The serial status line "RI" will toggle during the active "RING" state uniformly
distributed according the half time of register S80.
This command must be the last command in an AT command line.
ATA
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