Card Type	Modem (synchronous/asynchronous)
Processor	Z80182
Processor Speed	18.4MHz
Chipset	Microcom
Maximum Onboard Memory	64KB SRAM (32KB battery backup)/128KB Flash ROM
Maximum Data Rate	28.8Kbps
Maximum Fax Rate	14.4Kbps
Data Bus	Serial, parallel
Fax Class	Class I
Data Modulation	Bell 103A/212A ITU-T V.21, V.22, V.23, V.22bis, V.32, V.32bis Rockwell V.FC
Fax Modulation	Unidentified
Error Correction/Compression	MNP5, MNP10, V.42, V.42bis

CONNECTIONS
Function	Label		Function		Label
Talk/Data button		BT1		RS-232/422 port		CN3
Originate/Answer button		BT2		DC power		CN4
Power switch		BT3		Parallel port		CN5
Line in		CN1		LCD display		LCD
Line out		CN2		Volume		R1

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	JP2	Unidentified
í Factory configured - do not alter	JP4	Unidentified
í Pin 1 of serial port connected to signal ground	JP6	Pins 2 & 3 closed
Pin 1 of serial port connected to chassis ground	JP6	Pins 1 & 2 closed
í Received signal level set to -43 dBm	JP7	Pins 1 & 2 closed
Received signal level set to -33 dBm	JP7	Pins 2 & 3 closed

LINE TYPE SELECTION
Setting	JP1/A	JP1/B	JP1/C
Leased line (0 dBm)	Open	Open	Closed
Permissive (-10 dBm)	Closed	Open	Open
Programmable (-12 dBm)	Open	Closed	Open

CONFIGURATION MODE FUNCTION
Mode	Function
0	Normal operation of modem - sets power-up defaults for various commands
1	Controls flow control and connect mode defaults
2	Selects leased-line and synchronous mode options
3	Controls serial port signals
4	Controls synchronous clock and busy out
5	Selects echo and result code formatting
6	Controls various command options
7	Selects flow control and parity checking
8	Controls serial port parity and speed
9	Configures line speed options
10	Performs diagnostic tests
Note: The DeskPorte FAST modem can be configured by switches in eleven modes, although command configuration is preferable when possible. Configuration modes 1 through 9 can be stored in NVRAM by pressing the reset switch. Mode 0 is read on reset or power-up is SW2/5 is on. If SW2/5 is off, no switch settings will be used. Before operating, the modem’s switches should be returned to mode 0 and the appropriate settings made.

CONFIGURATION MODE SELECTION
Setting	SW1/1	SW1/2	SW1/3	SW1/4
í 0	Off	Off	Off	Off
1	On	Off	Off	Off
2	Off	On	Off	Off
3	On	On	Off	Off
4	Off	Off	On	Off
5	On	Off	On	Off
6	Off	On	On	Off
7	On	On	On	Off
8	Off	Off	Off	On
9	On	Off	Off	On
10	On	On	On	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/3	Off
í Modem reloads user configuration on reset	SW2/4	Off
Modem reloads factory configuration on reset	SW2/4	On
í Modem does not load configuration from switches	SW2/5	Off
Modem loads configuration from switches	SW2/5	On
í Cellular phone support disabled	SW2/6	Off
Cellular phone support enabled	SW2/6	On
í Command set enabled	SW2/7	Off
Command set disabled	SW2/7	On
í Auto-answer enabled	SW2/8	Off
Auto-answer disabled	SW2/8	On

COMMAND SET SELECTION
Setting	SW2/1	SW2/2
Asynchronous AT	Off	Off
Asynchronous V.25bis	On	Off
Synchronous V.25bis	Off	On
Transparent synchronous, command set disabled	On	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/6	N/A
í Factory configured - do not alter	SW2/7	N/A
í Factory configured - do not alter	SW2/8	N/A

FLOW CONTROL SELECTION
Setting	SW2/1	SW2/2
í Use setting from command set	Off	Off
Flow control disabled	On	Off
Use bidirectional XON/XOFF	Off	On
Use unidirectional XON/XOFF	On	On

CONNECT MODE SELECTION
Setting	SW2/3	SW2/4	SW2/5
í Use setting from command set	Off	Off	Off
Normal mode	On	Off	Off
Direct mode	Off	On	Off
Reliable mode	On	On	Off
Auto-reliable mode	Off	Off	On
LAPM reliable mode	On	Off	On
LAPM auto-reliable mode	Off	On	On
LAPM and MNP reliable mode	On	On	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/8	N/A

SYNCHRONOUS AUTO-DIAL CONFIGURATION
Setting	SW2/1	SW2/2
í Use setting from command set	Off	Off
Manual dial only	On	Off
Dial first stored number	Off	On
Dial second stored number	On	On

LINE TYPE SELECTION
Setting	SW2/3	SW2/4	SW2/5
í Use setting from command set	Off	Off	Off
Switched line type	On	Off	Off
Leased line type	Off	On	Off
Leased line type, modem will go off hook for 6 seconds when Originate/Answer button pushed	On	On	Off

SYNCHRONOUS MODE CTS SIGNAL CONFIGURATION
Setting	SW2/6	SW2/7
í Use setting from command set	Off	Off
CTS follows RTS	On	Off
CTS forced high	Off	On
CTS and RTS emulate half-duplex connection	On	On

CD SIGNAL CONFIGURATION
Setting	SW2/1	SW2/2
í Use setting from command set	Off	Off
CD forced high	On	Off
CD normal	Off	On
CD forced high except at disconnect	On	On

DSR AND CTS SIGNAL CONFIGURATION
Setting	SW2/3	SW2/4	SW2/5
í Use setting from command set	Off	Off	Off
DSR and CTS forced high	On	Off	Off
CTS follows CD; if &C is not set to 1 then DSR also follows CD, otherwise it follows OH	Off	On	Off
DSR and CTS follow CD	On	On	Off
DSR normal, CTS forced high	Off	Off	On
DSR and CTS normal	On	Off	On

DTR SIGNAL CONFIGURATION
Setting	SW2/6	SW2/7	SW2/8
í Use setting from command set	Off	Off	Off
DTR ignored	On	Off	Off
Modem enters command state on low DTR	Off	On	Off
Modem goes on hook on low DTR	On	On	Off
Modem resets on low DTR	Off	Off	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/5	N/A
í Factory configured - do not alter	SW2/6	N/A
í Factory configured - do not alter	SW2/7	N/A
í Factory configured - do not alter	SW2/8	N/A

LOOPBACK TEST AND BUSY OUT CONFIGURATION
Setting	SW2/1	SW2/2
í Use setting from command set	Off	Off
Pins 18 and 21 have no function	On	Off
Busy Out when pin 18 is high, perform local analog loopback test on high DTR	Off	On
Perform local analog loopback test when pin 18 is high, remote digital loopback test when pin 21 is high	On	On

CLOCK SOURCE SELECTION
Setting	SW2/3	SW2/4
í Use setting from command set	Off	Off
Internal clock source	On	Off
External clock source	Off	On
Slave to remote clock	On	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/7	N/A
í Factory configured - do not alter	SW2/8	N/A

COMMAND ECHO CONFIGURATION
Setting	SW2/1	SW2/2
í Use setting from command set	Off	Off
Command echo disabled	On	Off
Command echo enabled	Off	On

RESULT CODE CONFIGURATION
Setting	SW2/3	SW2/4
í Use setting from command set	Off	Off
Result codes enabled	On	Off
Result codes disabled	Off	On
Result codes enabled on originate only	On	On

RESULT CODE TYPE SELECTION
Setting	SW2/5	SW2/6
í Use setting from command set	Off	Off
Modem will send verbose result codes	On	Off
Modem will send numeric result codes	On	On

ERROR CORRECTION RESULT CODE CONFIGURATION
Setting	SW2/1	SW2/2
í Use setting from command set	Off	Off
Use standard format	On	Off
Use error correction result codes with 9600 given for all speeds between 4800bps and 12Kbps	Off	On
Use error correction result codes with real speed given	On	On

SERIAL PORT SPEED LOCK SELECTION
Setting	SW2/3	SW2/4
í Use setting from command set	Off	Off
Serial port speed locked	On	Off
Serial port speed follows connect speed	On	On

BREAK TYPE
Setting	SW2/5	SW2/6
í Use setting from command set	Off	Off
Use setting for \K0	On	Off
Use setting for \K1	Off	On
Use setting for \K5	On	On

INACTIVITY TIMER
Setting	SW2/7	SW2/8
í Use setting from command set	Off	Off
Inactivity timer disabled	On	Off
Set inactivity timer to 2 minutes	Off	On
Set inactivity timer to 15 minutes	On	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/6	N/A
í Factory configured - do not alter	SW2/7	N/A
í Factory configured - do not alter	SW2/8	N/A

FLOW CONTROL
Setting	SW2/1	SW2/2	SW2/3
í Use setting from command set	Off	Off	Off
Flow control disabled	On	Off	Off
Bidirectional XON/XOFF flow control enabled	Off	On	Off
CTS flow control by DCE enabled	On	On	Off
Bidirectional RTS/CTS flow control enabled	Off	Off	On
Unidirectional XON/XOFF flow control by DCE enabled	On	Off	On
CTS forced low until connection then CTS flow control by DCE	Off	On	On
Bidirectional RTS/CTS flow control after connection	On	On	On

ESCAPE AND FLOW CONTROL CHARACTER PARITY CHECKING
Setting	SW2/4	SW2/5
í Use setting from command set	Off	Off
Parity checking of flow control and escape characters disabled	On	Off
Flow control and escape characters will be processed only if their parity matches serial port	Off	On
Escape characters will be processed only if their parity matches serial port	On	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/8	N/A

SERIAL PORT PARITY SELECTION
Setting	SW2/1	SW2/2	SW2/3	SW2/4
í Use setting from command set	Off	Off	Off	Off
Seven data bits, odd parity	On	Off	Off	Off
Seven data bits, even parity	Off	On	Off	Off
Seven data bits, MARK parity	On	On	Off	Off
Seven data bits, SPACE parity	Off	Off	On	Off
Eight data bits, no parity	On	Off	On	Off
Eight data bits, odd parity	Off	On	On	Off
Eight data bits, even parity	On	On	On	Off
Eight data bits, MARK parity	Off	Off	Off	On

LOCAL SERIAL PORT SPEED SELECTION
Setting	SW2/5	SW2/6	SW2/7
í Use setting from command set	Off	Off	Off
2400bps serial port speed	On	Off	Off
4800bps serial port speed	Off	On	Off
9600bps serial port speed	On	On	Off
19.2Kbps serial port speed	Off	Off	On
38.4Kbps serial port speed	On	Off	On
57.6Kbps serial port speed	Off	On	On
115.2Kbps serial port speed	On	On	On

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Factory configured - do not alter	SW2/8	N/A

LINE SPEED SELECTION
Setting	SW2/1	SW2/2	SW2/3
í Use setting from command set	Off	Off	Off
2400bps line speed	On	Off	Off
4800bps line speed	Off	On	Off
9600bps line speed	On	On	Off
14.4Kbps line speed	Off	Off	On
19.2Kbps line speed	On	Off	On
24Kbps line speed	Off	On	On
28.8Kbps line speed	On	On	On

SPEED MATCHING CONFIGURATION
Setting	SW2/4	SW2/5
í Use setting from command set	Off	Off
Modem will match connect speeds.	On	Off
Modem will connect only at current speed.	Off	On
Modem will use ITU-T automode to match speeds.	On	On

LINE SPEED DETERMINATION CONFIGURATION
Setting	SW2/6	SW2/7
í Use setting from command set	Off	Off
Line speed determined by serial port speed	On	Off
Line speed determined by user	Off	On

TOGGLE SWITCHES
Function	Label		Function		Label
Start or stop test in progress		BT1		Start or stop test in progress		SW2/3

USER CONFIGURABLE SETTINGS
Setting	Label	Position
Local digital loopback test enabled	SW2/4	On
Local digital loopback test disabled	SW2/4	Off
Local analog loopback test enabled	SW2/5	On
Local analog loopback test disabled	SW2/5	Off
Local analog loopback with self-test enabled	SW2/6	On
Local analog loopback with self-test disabled	SW2/6	Off
Display switch positions on front panel LCD	SW2/7	On
Do not display switch positions on front panel LCD	SW2/7	Off
Clear all switch positions	SW2/8	On
Normal operation	SW2/8	Off
Note: For information on SW2/7 please see the diagram above. Lit segments indicate that a switch is on, and unlit ones indicate a switch that is off. Switch settings may also be displayed with the %S command. The usage of SW2/8 is to clear all test modes. All switches should be in the off position before turning SW2/8 on.

COMMAND SET SELECTION
Setting	SW2/1	SW2/2
Asynchronous AT	Off	Off
Asynchronous V.25bis	On	Off
Synchronous V.25bis	Off	On
Synchronous, command set disabled	On	On

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
TST	Unidentified	On	System error has occurred
TST	Unidentified	Off	Modem is functioning normally
TST	Unidentified	Blinking	Modem has detected a data error or is retraining
DCD	Unidentified	On	Carrier signal detected
DCD	Unidentified	Off	Carrier signal not detected
DTR	Unidentified	On	DTR signal is high
DTR	Unidentified	Off	DTR signal is low
RXD	Unidentified	Blinking	Modem is receiving data
RXD	Unidentified	Off	Modem is not receiving data
TXD	Unidentified	Blinking	Modem is transmitting data
TXD	Unidentified	Off	Modem is not transmitting data

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

A, B, E, H, I, L, M, O, P, Q, T, V, W, X, Y, Z

&D, &F, &G, &M, &P, &T, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \C, \E, \J, \N, \Q, \T

%A, %C, %E, %F, %G

V.25 Bis Commands

CIC, CRN, CRS, DIC, INC, INV, LSN, PRN, RLN, VAL

Special AT Commands

-J, -K, *H, )M, @M, :E

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S14, S16, S18, S22, S23, S25, S26, S27

Note: See MHI documentation for complete information.

AUTO-LOGON
Type:	Immediate
Format:	AT [cmds] $An [cmds]
Default:	0
Range:	0 - 9
Description:	Performs the auto-logon sequence stored at memory location n.

BIT-MAPPED REGISTER S21
Format		AT [cmds] S21=n [cmds]
Default:		Unidentified
Range:		0-253
Unit:		Bit-mapped
Description:		Selects jack type, CTS, RTS, DCD, and DSR signals, low DTR action, and the long space disconnect function.
Bit	Value	Function
0	0	Not used.
2, 1	00 01 10	CTS follows RTS in data mode; RTS is ignored in command mode. CTS forced high, RTS is ignored. ITU-T V.13 used to simulate half-duplex modes on full-duplex connections.
4, 3	00 01 10 11	DTR signal ignored. Modem goes to command mode on low DTR. Modem disconnects on low DTR; Auto-Answer is disabled. Modem is initialized on low DTR.
5	0 1	DCD forced high. DCD normal.
6	0	Not used.
7	0 1	Long space disconnect function disabled. Long space disconnect function enabled.

BIT-MAPPED REGISTER :T15
Format:		AT [cmds] :T15=n [cmds]
Default:		133
Range:		0 - 229
Description:		Controls CTS, RTS, and CD signals, synchronous clocks, and V.32 answer tones.
Bit	Value		Function
0	0 í 1		CTS normal during synchronous and direct asynchronous mode retrains. CTS forced low during synchronous and direct asynchronous mode retrains.
1	í 0		Not used.
2	0 í 1		When &R is set to 0 or 2, RTS is ignored when not connected. When &R is set to 0 or 2, CTS follows RTS when not connected.
3	í 0		Not used.
4	í 0		Not used.
5	í 0 1		Synchronous clock disabled when not connected. Synchronous clock enabled when not connected.
6	í 0 1		CD follows link negotiation status. When &C is set to 1, CD follows carrier.
7	0 í 1		V.32 answer tone phase is normal. V.32 answer tone phase may be reversed.

BIT-MAPPED REGISTER :T26
Format:		AT [cmds] :T26=n [cmds]
Default:		0
Range:		0 - 3
Description:		Controls billing delay and V.32 answer tone length.
Bit	Value		Function
0	í 0 1		2-second billing delay enabled. 2-second billing delay disabled.
1	í 0 1		Normal V.32 answer tone length. Short V.32 answer tone length.

BREAK TYPE
Type:		Configuration
Format:		AT [cmds] \Kn [cmds]
Description:		Configures the response the modem performs in response to a received break signal.
Command	Break from DTE Reliable/Normal mode		Break from DTE Direct mode	Modem receives \B	Break from remote modem
\K0	Enter command mode, do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Buffers cleared and break sent to remote modem.	Buffers cleared and break sent to DTE.
\K1	Buffers cleared and break sent to remote modem.		Send break to remote modem immediately.	Buffers cleared and break sent to remote modem.	Buffers cleared and break sent to DTE.
\K2	Enter command mode, do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Send break to remote modem immediately.	Send break to DTE immediately.
\K3	Send break to remote modem immediately.		Send break to remote modem immediately.	Send break to remote modem immediately.	Send break to DTE immediately.
\K4	Enter command mode, do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Send break to remote modem with transmitted data.	Break sent with received data to the DTE.
\K5	Send break with transmitted data.		Send break to remote modem immediately.	Send break to remote modem with transmitted data.	Break sent with received data to the DTE.

CALL RESTORAL TIMER
Type:	Configuration
Format:	AT [cmds] )Hn [cmds]
Default:	0
Range:	0 - 255
Unit:	1 minute
Description:	Sets the amount of time that the modem will attempt to reconnect to a MNP reliable mode call that has terminated abnormally. Setting )H to 0 disables this feature. If the modem reconnects successfully, the call will proceed as if it did not disconnect.

CALL SECURITY
Type:	Configuration
Format:	AT [cmds] $Gn [cmds]
Description:	Selects whether the modem will use call security procedures on incoming connections.
Command		Function
í $G0		Call security disabled.
$G1		Call security enabled.

CALL SECURITY - DISPLAY PASSWORD TABLE
Type:	Immediate
Format:	AT [cmds] $I [cmds]
Description:	Displays the list of user IDs, passwords, and permission levels.

CALL SECURITY - LOGON SEQUENCE
Type:	Configuration
Format:	AT [cmds] $Ln [cmds]
Description:	Changes the logon sequence n. Only sequences 5 through 9 are user configurable. The user will be prompted to enter the new logon sequence using the commands listed below. Errors will be indicated after the sequence by caret characters underneath the problem section.
Command		Function
An		Aborts the call if the last string specified to wait for is not received in n seconds.
B		Modem compares the user’s password to the password table. If it does not match the user is given two more tries, then disconnects. If the passwords match the modem acts according to the stored permission level.
C		Modem waits for 15 seconds for the remote modem to disconnect. If it does not then the local modem disconnects, waits five seconds, then calls the user at the number entered. If no number was entered the modem calls the number stored at the location matching the user number.
Dn		Delays for n seconds.
Nn		Waits for the user to enter his user ID. The following options are available:
		Option	Function
		í 0	Entered characters are not echoed.
		1	Entered characters are echoed.
		2	Entered characters are echoed as periods.
Pn		Waits for the user to enter his password. The following options are available:
		Option	Function
		í 0	Entered characters are not echoed.
		1	Entered characters are echoed.
		2	Entered characters are echoed as periods.

CALL SECURITY - LOGON SEQUENCE (CON’T)
Command	Function
Rn	Restarts the logon sequence if the last string specified to wait for is not received in n seconds.
Sn	Skips to the next section of the logon sequence if the last string specified to wait for is not received in n seconds.
Vn	Waits for the user to enter his phone number for a callback sequence. The following options are available:
	Option	Function
	í 0	Entered characters are not echoed.
	1	Entered characters are echoed.
	2	Entered characters are echoed as periods.
Z	Modem compares the user’s password to the password table. If it does not match the user is given two more tries, then disconnects. If the passwords match the sequence continues.
&n	Calls the user back with logon sequence n.
+n	Continue with logon sequence n.
‘xxxxx’	Sends the string xxxxx to the calling modem. Control characters (including carriage returns) may be entered by preceding the character with a caret.)
"xxxxx"	Waits to receive the string xxxxx from the calling modem.

CALL SECURITY - PASSWORD SELECTION
Type:	Configuration
Format:	AT [cmds] $Hn (prompt) AS #n: xxxxxxxx, yyyyyyyy, a
Description:	Sets the user ID, password, and permission level for user number n. The xxxxxxxx field indicates the user ID, the yyyyyyyy the password, and the a is the permission level. n must be between 1 and 40.
Permission		Function
a=1		User will be connected if correct user ID and password are entered.
a=2		User will be called back at stored phone number n.
a=3		User will be prompted to enter a phone number at which to be called back. If number is not entered, user will be called back at stored phone number n.

CD, CTS, AND DSR SIGNAL CONNECT TIMER
Type:	Register
Format:	AT [cmds] :T14=n [cmds]
Default:	0
Range:	0 - 255
Unit:	.1 second
Description:	Sets the amount time before or after the connect message that CD, CTS, and DSR will be brought high.

CD, CTS, AND DSR SIGNAL TIMING
Type:	Configuration
Format:	AT [cmds] @Cn [cmds]
Description:	Selects whether the CD, CTS, and DSR signals are brought high before or after the connect message.
Command		Function
í @C0		CD, CTS, and DSR brought high after connect message.
@C1		CD, CTS, and DSR brought high before connect message.

CD SIGNAL
Type:	Configuration
Format:	AT [cmds] &Cn [cmds]
Description:	Controls the behaviour of the CD signal.
Command	Function
&C0	CD forced high.
í &C1	CD normal.
&C2	CD forced high except at disconnect.

CD SIGNAL DELAY
Type:	Configuration
Format:	AT [cmds] :Un [cmds]
Default:	0
Range:	0 - 255
Unit:	12.5 mS
Description:	Selects the amount of time that the modem delays before it brings the CD signal high.
Note:	This command only takes effect if :R is set to 1.

COMMAND SET
Type:	Configuration
Format:	AT [cmds] -Hn [cmds]
Description:	Selects whether the modem will accept commands.
Command		Function
í -H0		Command sets enabled.
-H1		Command sets disabled.

CONNECT SPEED MATCHING
Type:	Configuration
Format:	AT [cmds] %Ln [cmds]
Description:	Selects whether the modem will attempt to match the connect speed of the remote modem.
Command		Function
%L0		Modem will connect at speeds supported by the protocol selected only.
í %L1		Modem will match connect speeds.
%L2		Modem will connect only at current speed.
%L3		Modem will use ITU-T automode to match speeds.

CONNECTION SECURITY - DISPLAY PASSWORD TABLE
Type:	Immediate
Format:	AT [cmds] $N [cmds]
Description:	Displays the list of connection passwords.

CONNECTION SECURITY - PASSWORD SELECTION (ASYNCHRONOUS MODE)
Type:	Configuration
Format:	AT [cmds] %In [cmds]
Description:	Changes connection password number n. n must be between 0 and 4. The user will be prompted to enter the old and new passwords. Passwords must be exactly five characters, case insensitive.

CONNECTION SECURITY - PASSWORD SELECTION (SYNCHRONOUS MODE)
Type:	Configuration
Format:	AT [cmds] %In;xxxxx;yyyyy [cmds]
Description:	Changes connection password number n. n must be between 0 and 4. The xxxxx represents the main security password, and the yyyyy is the new connection password. Passwords must be exactly five characters, case insensitive.

CONNECTION SECURITY - PASSWORD SEND
Type:	Configuration
Format:	AT [cmds] $Mn [cmds]
Description:	Selects how the modem will attempt to connect to a secure system.
Command		Function
í $M0		Modem does not send connection password.
$M1		Modem sends connection password 0. If password does not match any of the remote modem’s connection passwords, the modem disconnects.
$M2		Modem sends connection password 0. If password does not match any of the remote modem’s connection passwords, the remote modem uses logon sequence 5 to give the user three tries to enter a connection password. If this fails, the modem disconnects.

CTS DELAY TIMER
Type:	Register
Format:	AT [cmds] :T16=n [cmds]
Default:	0
Range:	0 - 255
Unit:	12.5 mS
Description:	Sets the amount of time that the modem waits after a connection has been made and CD and DSR have gone high that the modem brings CTS high.

CTS SIGNAL DELAY
Type:	Configuration
Format:	AT [cmds] :Vn [cmds]
Default:	0
Range:	0 - 255
Unit:	12.5 mS
Description:	Selects the amount of time that the modem delays before it brings the CTS signal high.

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [cmds]
Description:	Dials the telephone number indicated according to any modifiers included in the string.
Command	Function
DA	MNP10 link will be negotiated at 4800bps for this call.
DJ	MNP10 link will be negotiated at 1200bps for this call.
DK	MNP10 power level adjustment enabled for this call.
DL	Re-dial last number.
DM	Make a LAPM reliable mode connection this call.
DNn	If the dial attempt fails, the modem will attempt to dial stored number n.
DO	This call will be set for a cellular phone. Same as executing the following command: AT \N2 )M1 :E0 @M18 *H1
DP	Pulse dialing enabled.
DQ	Make an LAPM auto-reliable mode connection this call.
DR	Answer mode enabled; originate mode disabled following handshake initiation.
DS	Dial the first stored telephone number.
DT	Tone dialing enabled.
DU	Make a direct mode connection this call.
DV	Make an LAPM or MNP reliable mode connection this call.
DW	Dialing resumed following dial tone detection.
DX	Make an auto-reliable mode connection this call.
DY	Make an MNP reliable mode connection this call.
DZ	Make a normal mode connection this call.
D,	Dialing paused for amount of time specified in S8 register.
D/n	Dial stored telephone number n.
D!	Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.
D+n	Perform logon sequence n after connecting.
D@	Wait for Quiet Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.
D$	Wait for prompt tone detection function enabled. Waits for prompt tone for amount of time specified by the S7 command.
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

DIAL REPEATEDLY
Type:	Immediate
Format:	AT [cmds] -D<#> [cmds]
Description:	Dials the number indicated up to nine times.

DISCONNECT BUFFER DELAY
Type:	Configuration
Format	AT [cmds] %Dn [cmds]
Default:	0
Range:	0-255
Unit:	1 second
Description:	Sets maximum duration allowed during buffered data calls for modem to perform clearing functions after losing carrier-signal or receiving a clear call signal from the remote modem and before initiating hang-up process.

DISPLAY CONFIGURATION AND STATISTICS
Type:	Immediate
Format:	AT [cmds] \S [cmds]
Description:	Displays the settings of all commands and statistics about the current connection.

DISPLAY FIRMWARE VERSION
Type:	Immediate
Format:	AT [cmds] %V [cmds]
Description:	Displays the current firmware version.

DISPLAY REGISTERS
Type:	Immediate
Format:	AT [cmds] %Rn [cmds]
Description:	Displays all status registers.
Command		Function
%R0		Displays all S registers.
%R1		Displays all :T registers.

DISPLAY ROM BOOTSTRAP VERSION
Type:	Immediate
Format:	AT [cmds] %V [cmds]
Description:	Displays the current ROM bootstrap version.