Card Type	ISDN TA
Chip Set	Unidentified
Transfer Rate	56Kbps/64Kbps x 2
Data Bus	Unidentified
ISDN Protocols	SAP, T-Link, V.120, PPP
Switch Types	5ESS, NI-1, DMS-100, NEC

AUTO-ANSWER
Type:	Configuration
Format:	AT [cmds] _Jn [cmds]
Description:	Selects whether the TA can auto-answer incoming calls.
Command		Function
_J0		Auto-answer disabled.
í _J1		Auto-answer enabled.

AUTO-ANSWER
Type:	Register
Format:	AT [cmds] S0=n [cmds]
Description:	Selects whether the TA can auto-answer incoming calls.
Command		Function
S0=0		Auto-answer disabled.
í S0=1		Auto-answer enabled.
S0=2		Auto-answer enabled only when DTR is high.

BIT-MAPPED REGISTER S14
Format:		AT [cmds] S14=n [cmds]
Default:		Unidentified
Range:		60
Description:		Controls command echo, result codes, and serial port speed locking.
Bit	Value		Function
1-0	00		Not used.
2	0 í 1		Command echo enabled. Command echo disabled.
3	í 0 1		Result codes enabled. Result codes disabled.
4	0 í 1		Result codes in numeric form. Result codes in verbose form.
5	0 1		Local serial port speed follows connect speed. Local serial port speed locked.

BONDED CALL
Type:	Register
Format:	AT [cmds] S59=n [cmds]
Description:	Selects whether the TA will attempt to make a bonded call.
Command		Function
S59=3		Call bonding disabled.
S59=5		Call bonding enabled.

BONDED CALL - ANSWERING TIMEOUT
Type:	Register
Format:	AT [cmds] S44=n [cmds]
Default:	10
Range:	0 - 255
Unit:	1 second
Description:	Sets the time when answering a call that the TA will wait for the remote TA to send the bond negotiation before it disconnects.

BONDED CALL - CAPACITY TIMEOUT
Type:	Register
Format:	AT [cmds] S45=n [cmds]
Default:	5
Range:	0 - 255
Unit:	1 second
Description:	Sets the time that the TA will wait to agree with the remote TA on channel capacities before it disconnects.

BONDED CALL - EQUALIZATION TIMEOUT
Type:	Register
Format:	AT [cmds] S43=n [cmds]
Default:	50
Range:	0 - 255
Unit:	1 second
Description:	Sets the time that the TA will wait for the two channels of a bonded call to be equalized before it disconnects.

BONDED CALL - FRAME PATTERN TIMEOUT
Type:	Register
Format:	AT [cmds] S41=n [cmds]
Default:	10
Range:	0 - 255
Unit:	1 second
Description:	Sets the time that the TA will wait during the bond frame pattern before it disconnects.

BONDED CALL - ORIGINATION TIMEOUT
Type:	Register
Format:	AT [cmds] S40=n [cmds]
Default:	10
Range:	0 - 255
Unit:	1 second
Description:	Sets the time when originating a call that the TA will wait for the remote TA to send the bond negotiation before it disconnects.

BONDED CALL - SECOND CALL TIMEOUT
Type:	Register
Format:	AT [cmds] S42=n [cmds]
Default:	50
Range:	0 - 255
Unit:	1 second
Description:	Sets the time that the TA will wait for the second call of a bonded call to be completed before it disconnects.

CALL TYPE
Type:	Register
Format:	AT [cmds] S53=n [cmds]
Description:	Selects what type of call is to be made.
Command		Function
S53=0		Speech call.
S53=1		Audio call.
S53=2		56Kbps data call.
S53=3		64Kbps data call.

CD SIGNAL
Type:	Configuration
Format:	AT [cmds] &Cn [cmds]
Description:	Controls the behaviour of the CD signal.
Command		Function
&C0		CD forced high.
&C1		CD normal.
&C2		CD forced low on disconnect.
&C3		CD forced low when there is no connection.

CD SIGNAL
Type:	Register
Format:	AT [cmds] S33=n [cmds]
Description:	Controls the behaviour of the CD signal.
Command		Function
S33=0		CD forced high.
S33=1		CD normal.
S33=2		CD forced low on disconnect.
S33=3		CD forced low when there is no connection.

CLOCK SOURCE
Type:	Register
Format:	AT [cmds] S76=n [cmds]
Description:	Selects where the TA derives the transmit clock.
Command		Function
S76=0		TA uses internal clock source.
í S76=1		DTE generates clock source.

CLOCK SOURCE - ISDN
Type:	Configuration
Format:	AT [cmds] _Xn [cmds]
Description:	Selects where the TA derives the ISDN U clock.
Command		Function
_X0		TA uses network as clock source.
í _X1		TA generates clock source.

CLOCK SOURCE - ISDN
Type:	Register
Format:	AT [cmds] S51=n [cmds]
Description:	Selects where the TA derives the ISDN U clock.
Command		Function
S51=0		TA uses network as clock source.
í S51=1		TA generates clock source.

COMMAND SET
Type:	Immediate
Format:	AT [cmds] _Un [cmds]
Description:	Selects the command set that will be used.
Command		Function
_U0		Command sets disabled.
_U1		AT command set enabled.
_U2		V.25bis command set enabled.

COMMAND SET - AT
Type:	Immediate
Format:	AT [cmds] S55=n [cmds]
Description:	Selects the command set that will be used.
Command		Function
S55=2		AT command set enabled.
S55=3		AT command set disabled.

CONNECT TIME
Type:	Register
Format:	AT [cmds] S7=n [cmds]
Default:	Unidentified
Range:	0-240
Unit:	1 second
Description:	Selects the amount of time the TA will wait for an outgoing call to connect.

CTS SIGNAL
Type:	Configuration
Format:	AT [cmds] &Rn [cmds]
Description:	Controls the behaviour of the CTS signal.
Command		Function
&R0		CTS follows RTS.
í &R1		CTS forced high.

CTS SIGNAL
Type:	Register
Format:	AT [cmds] S30=n [cmds]
Description:	Controls the behaviour of the CTS signal.
Command		Function
S30=0		CTS follows RTS.
í S30=1		CTS forced high.

DATA LENGTH
Type:	Configuration
Format:	AT [cmds] _Wn [cmds]
Description:	Selects the length of the data word.
Command		Function
_W0		7 bit word length.
í _W1		8 bit word length.

DATA LENGTH
Type:	Configuration
Format:	AT [cmds] S72=n [cmds]
Description:	Selects the length of the data word.
Command		Function
S72=0		8 bit word length.
í S72=1		7 bit word length.

DATA PARITY
Type:	Configuration
Format:	AT [cmds] _On [cmds]
Description:	Selects the format of the parity bit.
Command		Function
_O0		Even parity.
_O1		Mark parity.
_O2		Odd parity.
í _O3		No parity.

DATA PARITY
Type:	Configuration
Format:	AT [cmds] S73=n [cmds]
Description:	Selects the format of the parity bit.
Command		Function
í S73=0		No parity.
S73=1		Odd parity.
S73=2		Even parity.

DATA STOP
Type:	Configuration
Format:	AT [cmds] _Qn [cmds]
Description:	Selects the number of stop bits.
Command		Function
_Q0		One stop bit.
í _Q1		Two stop bits.

DATA STOP
Type:	Configuration
Format:	AT [cmds] S74=n [cmds]
Description:	Selects the number of stop bits.
Command		Function
S74=0		One stop bit.
S74=1		One and a half stop bits.
í S74=2		Two stop bits.

DIAL STORED NUMBER
Type:	Immediate
Format:	AT [cmds] DTSn [cmds]
Description:	Dials the number stored in memory location n.

DISPLAY CALLER ID
Type:	Immediate
Format:	AT [cmds] &Nn [cmds]
Description:	Reads the remote TA’s telephone number.
Command		Function
&N1		Reads the remote TA’s first SPID.
&N2		Reads the remote TA’s second SPID.

DISPLAY STORED NUMBER
Type:	Register
Format:	AT [cmds] SS8n? [cmds]
Description:	Displays the number stored in memory location n.

DSR SIGNAL
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Controls the behaviour of the DSR signal.
Command		Function
&S0		DSR forced high.
í &S1		DSR normal.
&S2		DSR forced low when there is no connection.
&S3		DSR forced low in Dialup mode.

DSR SIGNAL
Type:	Register
Format:	AT [cmds] S32=n [cmds]
Description:	Controls the behaviour of the DSR signal.
Command		Function
S32=0		DSR forced high.
í S32=1		DSR normal.
S32=2		DSR forced low when there is no connection.
S32=3		DSR forced low in Dialup mode.

DSR SIGNAL - TEST MODE
Type:	Immediate
Format:	AT [cmds] _Cn [cmds]
Description:	Controls the behaviour of the DSR signal when in a test mode.
Command		Function
í _C0		DSR forced low.
_C1		DSR forced high.

DTR SIGNAL
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Controls the behaviour of the DTR signal.
Command		Function
&D0		DTR forced high.
&D1		TA enters command mode when DTR goes low.
&D2		TA hangs up and returns to command mode when DTR goes low.

DTR SIGNAL
Type:	Register
Format:	AT [cmds] S34=n [cmds]
Description:	Controls the behaviour of the DTR signal.
Command		Function
S34=0		DTR forced high.
S34=1		TA enters command mode when DTR goes low.
S34=2		TA hangs up and returns to command mode when DTR goes low.
S34=4		TA hangs up on an incoming call and returns to command mode when DTR goes low.
S34=8		TA hangs up on an outgoing call and returns to command mode when DTR goes low.

ECHO TONE
Type:	Register
Format:	AT [cmds] S56=n [cmds]
Description:	Selects whether an echo tone will be used.
Command		Function
S56=0		Echo tone disabled.
S56=1		Echo tone enabled on answer only.
S56=2		Echo tone enabled on originate only.
S56=3		Echo tone enabled.

ERROR COUNTER
Type:	Immediate
Format:	AT [cmds] _Vn [cmds]
Description:	Increments or clears the error counter for test modes.
Command		Function
_V0		Clears the error counter.
_V1		Increments the error counter by introducing an error into the test pattern.

ESCAPE SEQUENCE - OUT OF BAND
Type:	Immediate
Format:	<BREAK> AT [cmds]<CR>
Description:	Puts the modem in Command Mode.
Notes:	Do not precede this command with AT. <BREAK> refers to the hardware modem break signal.

FLOW CONTROL TYPE
Type:	Configuration
Format:	AT [cmds] \Qn [cmds]
Description:	Selects the type of flow control that will be used.
Command		Function
í \Q0		Flow control disabled.
\Q1		XON/XOFF flow control enabled.
\Q2		CTS flow control enabled.
\Q3		RTS/CTS flow control enabled.

INCOMING CALLS
Type:	Register
Format:	AT [cmds] S58=n [cmds]
Description:	Selects which calls the TA will answer.
Command		Function
S58=0		All calls will be answered.
S58=1		Only calls from stored numbers will be answered.

LDN
Type:	Configuration
Format:	AT [cmds] _Nn [cmds]
Description:	Selects which LDN will be used.
Command		Function
_N0		Select LDN 1.
_N1		Select LDN 2.

LDN 1 SET
Type:	Configuration
Format:	AT [cmds] SS62=<#> [cmds]
Description:	Sets the first LDN.

LDN 2 SET
Type:	Configuration
Format:	AT [cmds] SS63=<#> [cmds]
Description:	Sets the second LDN.

LINE TYPE
Type:	Configuration
Format:	AT [cmds] &Ln [cmds]
Description:	Selects the type of line the TA is connected to.
Command		Function
&L0		Standard dial-out ISDN.
&L1		Leased-line ISDN.
&L2		Leased-line ISDN, dial backup enabled.

LINE TYPE
Type:	Configuration
Format:	AT [cmds] S50=n [cmds]
Description:	Selects the type of line the TA is connected to.
Command		Function
S50=0		Standard dial-out ISDN.
S50=1		Leased-line ISDN.

LOCAL SERIAL PORT SPEED
Type:	Configuration
Format:	AT [cmds] %Kn [cmds]
Description:	Selects the speed of the serial port.
Command		Function
%K0		Selects 300bps speed.
%K1		Selects 1200bps speed.

LOCAL SERIAL PORT SPEED
Type:	Configuration
Format:	AT [cmds] S71=n [cmds]
Description:	Selects the speed of the serial port.
Command		Function
S71=1		Selects 300bps speed.
S71=3		Selects 1200bps speed.
S71=6		Selects 2400bps speed.
S71=8		Selects 4800bps speed.
S71=11		Selects 9600bps speed.
S71=15		Selects 19.2Kbps speed.
S71=17		Selects 38.4Kbps speed.
S71=18		Selects 48Kbps speed.
S71=19		Selects 56Kbps speed.
S71=20		Selects 57.6Kbps speed.
S71=21		Selects 64Kbps speed.
S71=22		Selects 112Kbps speed.
S71=23		Selects 115.2Kbps speed.
S71=24		Selects 128.8Kbps speed.

LOCK SERIAL PORT SPEED - T-LINK
Type:	Configuration
Format:	AT [cmds] Ln [cmds]
Description:	Selects whether the TA will negotiate the serial port speed when using the T-Link protocol.
Command		Function
L0		Serial port speed locked.
í L1		TA will negotiate serial port speed.

LOOPBACK TEST
Type:	Register
Format:	AT [cmds] S57=n [cmds]
Description:	Selects what types of loopback tests the TA will use.
Command		Function
S57=0		Loopback testing disabled.
S57=1		TA will perform DDS latching loopback test.
S57=2		TA will perform V.54 loopback test.
S57=3		TA will perform V.54 and DDS latching loopback tests.

PRODUCT ID
Type:	Register
Format:	AT [cmds] S78=n [cmds]
Description:	Sets the Product ID.

PROTOCOL
Type:	Register
Format:	AT [cmds] S54=n [cmds]
Description:	Selects what type of protocol the TA will use.
Command		Function
S54=1		TA will use clear channel.
S54=2		TA will use Bonding Mode 1.
S54=3		TA will use SAP.
S54=4		TA will use T-Link.
S54=6		TA will use V.120.
S54=9		TA will use 57.6Kbps asynchronous.
S54=11		TA will fall back to common protocol.
S54=12		TA will use PPP.

RESET TO FACTORY DEFAULTS
Type:	Immediate
Format:	AT [cmds] &Fn [cmds]
Description:	Resets the TA’s configuration to one of the factory default setups.
Command		Function
&F0		Resets to default configuration.
&F1		Resets to 56Kbps synchronous setup.
&F2		Resets to 64Kbps synchronous setup.
&F3		Resets to 112Kbps synchronous setup.
&F4		Resets to 128Kbps synchronous setup.
&F5		Resets to 128Kbps leased-line setup.
&F6		Resets to 128Kbps LDM Master setup.
&F7		Resets to 57.6Kbps asynchronous setup.
&F8		Resets to 115.2Kbps asynchronous setup.
&F9		Resets to 57.6Kbps asynchronous setup with fallback.

RESULT CODES - SPEED
Type:	Register
Format:	AT [cmds] S22=n [cmds]
Description:	Selects whether CONNECT messages will display connect speed.
Command		Function
S22=0		Speed will not be displayed.
S22=224		Speed will be displayed.

RTS TO CTS DELAY
Type:	Configuration
Format:	AT [cmds] _Dn [cmds]
Description:	Selects the delay when CTS follows RTS.
Command		Function
í _D0		Set delay to 1ms.
_D1		Set delay to 18ms.

RTS TO CTS DELAY
Type:	Register
Format:	AT [cmds] S31=n [cmds]
Description:	Selects the delay when CTS follows RTS.
Command		Function
í S31=0		Set delay to 1ms.
S31=1		Set delay to 18ms.

SPID
Type:	Configuration
Format:	AT [cmds] _In [cmds]
Description:	Selects which SPID will be used.
Command		Function
_I0		Select SPID 1.
_I1		Select SPID 2.

SPID 1 SET
Type:	Configuration
Format:	AT [cmds] SS60=<#> [cmds]
Description:	Sets the first SPID.

SPID 2 SET
Type:	Configuration
Format:	AT [cmds] SS61=<#> [cmds]
Description:	Sets the second SPID.

STORE NUMBER IN MEMORY
Type:	Register
Format:	AT [cmds] SS8n=<#> [cmds]
Description:	Stores a number in memory location n.

SWITCH TYPE
Type:	Configuration
Format:	AT [cmds] _Sn [cmds]
Description:	Selects what type of switch the TA is connected to.
Command		Function
_S0		5ESS switch type.
_S1		DMS100 switch type.
_S2		National type 1 switch.
_S3		NEC switch type.

SWITCH TYPE
Type:	Configuration
Format:	AT [cmds] S52=n [cmds]
Description:	Selects what type of switch the TA is connected to.
Command		Function
S52=0		5ESS switch type.
S52=1		DMS100 switch type.
S52=2		National type 1 switch.
S52=3		NEC switch type.

SYNC/ASYNC MODE
Type:	Immediate
Format:	AT [cmds] &Qn [cmds]
Description:	Selects synchronous or asynchronous mode.
Command		Function
&Q0		Selects asynchronous mode.
&Q2		Selects synchronous mode.

SYNC/ASYNC MODE
Type:	Immediate
Format:	AT [cmds] S70=n [cmds]
Description:	Selects synchronous or asynchronous mode.
Command		Function
S70=0		Selects asynchronous mode.
S70=2		Selects synchronous mode.

TEST MODES
Type:	Immediate
Format:	AT [cmds] &Tn [cmds]
Description:	Puts the TA into test modes.
Command		Function
&T0		Ends test in progress.
&T1		Displays all test errors.
&T2		Displays totals on tests.
&T3		Begins local loopback test.
&T4		Begins network loopback test.
&T5		Begins protocol loopback test.
&T6		Begins remote loopback test.
&T7		Begins remote test.
&T8		Denies request for remote loopback test.
&T9		Grants request for remote loopback test.
&T10		Grants request for remote V.54 loopback test.
&T11		Grants request for remote DDS latching and V.54 loopback test.
&T12		Displays near- and far-end block error information.

TEST STATUS
Type:	Register (Read-only)
Format:	AT [cmds] S49? [cmds]
Description:	Reports the status of the self-test.
Value		Meaning
0		Self-test passed.
1		Self-test detected an error in ROM.
2		Self-test detected an error in RAM.