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Chapter 4 Provided AT Command Set
The ISDNL
TA-200 terminal adapters support the communication interface (RS-
INK ™
232C) and allow applications to access the adapters as a standard analog modem.
Extra AT commands are provided to enable ISDN features such as HDLC, X.75, V.120,
or Async to Sync PPP (see command list given below).
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The following AT Commands are provided to allow control of the ISDN connections, line
protocols and call handling. You should change your application setup-strings using
these parameters to access ISDNL
protocol and settings.
AT Command Set
Command
ATA
ATBn
ATB0
ATB11
ATB12
ATB13
ATB14
ATB15
ATB16
ATB20
ATB3
ATB30
ATB31
ATB32
ATB4
ATB41
ATB42
ATB5
ATCODEC
ATCODEC=n
ATCODEC?
ATDSr
for more information and download the latest driver.
Samples
Answer an incoming call
Select protocol of transmission in B channel
64K HDLC (default)
V.110 Async. User rate = 1200 bps (option)
V.110 Async. User rate = 2400 bps (option)
V.110 Async. User rate = 4800 bps (option)
V.110 Async. User rate = 9600 bps (option)
V.110 Async. User rate = 19200 bps (option)
V.110 Async. User rate = 38400 bps (option)
V.120 Async.
X.75 Transparent, the same as ATB30
X.75 Transparent
X.75 T.70 NL
X.75 ISO 8208
Async PPP to Sync PPP conversion
Async to Sync PPP conversion in ML PPP mode,
compatible with Microsoft ISDN Accelerator pack
Async to Sync PPP conversion in ML-PPP mode with
Bandwidth on Demand (BOD)
Bit Transparency (This command is only used for RVS-
COM' s soft-G3Fax)
Set or display the codec of POTS
n = 0 for A_Law
n = 1 for u_Law
Display the current settings
Speed dial, dial saved telephone number, r=0,1
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TA-200 terminal adapter with the correct
INK ™
Description
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