AT Command Reference
INSYS ISDN TA 4.0
12
AT Command Reference
Default values are printed bold.
Command
Description
A/
Repeat the last command
This command repeats the commands of the last entered command line.
ATA
Accept incoming call
An incoming call can be accepted with this command if automatic call ac-
ceptance is disabled (register S0 = 0). An incoming call is indicated by the
"RING" message or the code "2".
This command must be the last in an AT command line.
ATA
[//<
UUS1data>]
<
UUS1data> Data transmitted with UUS1 signaling
ATB
B channel protocol
Transmission protocol for data in B channel.
ATB0
V.110 asynchronous (e.g.: for connections to GSM devices)
ATB1
V.110
synchronous
ATB3
HDLC async to sync conversion (PPP asynchronous, single
link PPP) (e.g.: for internet / communication network ac-
cess)
ATB4
HDLC transparent (octets are packed in HDLC frames)
ATB5
Byte-transparent Voice (B channel data)
ATB6
Byte-transparent Data (B channel data)
ATB10
X.75-NL (e.g.: for direct ISDN-ISDN data connections)
ATB13
V.120
asynchronous
ATB20
X.31 B channel (X.25 B channel, option)
ATB21
X.31 D channel (option)
ATB31
Multilink PPP
ATB40
external
IOM
ATB43
external
Data
ATB45
external Audio Data
Note: Not all parameters listed here are available for all devices. The avail-
ability of the parameters depends on the respective device.
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