COURIER V.32/PC modem/telephone/ISDN Settings and Configuration

Card Type	Modem (asynchronous)
Chip Set	U.S. Robotics
Maximum Data Rate	14.4Kbps
Data Bus	Unidentified
Data Modulation Protocol	Unidentified
Error Correction/Compression	Unidentified

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í DTR normal	SW1/1	Off
DTR forced high	SW1/1	On
í Verbal result codes	SW1/2	Off
Numeric result codes	SW1/2	On
í Enable result codes displayed	SW1/3	On
Disable result codes displayed	SW1/3	Off
í Local echo enabled	SW1/4	Off
Local echo disabled	SW1/4	On
í Auto answer disabled	SW1/5	On
Auto answer enabled	SW1/5	Off
í CD signal normal	SW1/6	Off
CD signal forced high	SW1/6	On
í Display result codes in originate and answer mode	SW1/7	Off
Display result codes in originate mode only	SW1/7	On
í Smart mode enabled	SW1/8	On
Dumb mode enabled	SW1/8	Off
í Normal operation enabled	SW1/9	On
Escape sequence enabled	SW1/9	Off
í Restore NVRAM defaults	SW1/10	Off
Restore factory defaults	SW1/10	On

ABORT
Type:	Immediate
Format:	Any key
Description:	Aborts answering/originating a call; modem hangs up.

ANSWER
Type:	Immediate
Format:	AT [cmds] A
Description:	Enables manual answer mode, the modem goes off-hook; pressing any key will abort.

ANSWER SEQUENCE
Type:	Configuration
Format:	AT [cmds] Bn [cmds]
Description:	Selects the answer sequence the modem will use
Command	Function
í B0	V.32 mode/ITU-T answer sequence enabled
B1	HST mode/Bell answer tone enabled

ATTENTION
Type:	Immediate
Format:	AT [cmds]
Description:	Tells the modem that a command follows or use alone to test OK result code

BIT-MAPPED REGISTER S13
Format		AT [cmds] S13=n [cmds]
Default:		0
Range:		0-255
Unit:		Bit-mapped
Description:		Controls DTR reset, DTR dialing, reset dialing, HST modulation, and MNP3.
Bit	Value	Function
0	í 0 1	DTR normal Reset on low DTR
1	í 0 1	Normal auto answer operation When ring is received, enter originate and listen for answer tone
2	í 0 1	Pause 250msec. Before displaying result codes Immediate result code display
3	í 0 1	DTR dialing disabled DTR dialing enabled
4	í 0 1	Reset dialing disabled Reset dialing enabled
5	í 0 1	HST modulation enabled HST modulation disabled
6	í 0 1	MNP 3 enabled MNP 3 disabled
7	í 0 1	Hardware reset disabled Hardware reset enabled

BIT-MAPPED REGISTER S15
Format:		AT [cmds] S15=n [cmds]
Default:		0
Range:		0-255
Unit:		Bit-mapped
Description:		Controls HST high frequency equalization, online fallback, back channel, non-error-correcting mode buffer, MNP4, custom applications and MNP compliance.
Bit	Value	Function
0	í 0 1	HST high frequency equalization enabled HST high frequency equalization disabled
1	í 0 1	Online fallback enabled Online fallback disabled
2	í 0 1	300bps back channel enabled 300bps back channel disabled
3	í 0 1	Non-error-correcting mode transmit buffer set to 1.5KB Non-error-correcting mode transmit buffer set to 128 bytes
4	í 0 1	MNP 4 enabled MNP 4 disabled
5	í 0 1	Custom applications only Custom applications only
6	í 0 1	MNP normal MNP adjusted for non compliant modems

BIT-MAPPED REGISTER S27
Format:		AT [cmds] S27=n [cmds]
Default:		0
Range:		0-191
Unit:		Bit-mapped
Description:		Controls V.21, V.32 encoding and modulation, and high speed rate shift
Bit	Value	Function
0	í 0 1	V.21 disabled V.21 enabled
1	í 0 1	V.32 non-trellis coding disabled V.32 non-trellis coding enabled
2	í 0 1	V.32 modulation enabled V.32 modulation disabled
3 - 5	í 000	Not used
6	í 0 1	19.2Kbps enabled. High speed rate shift needs to be enabled. 38.4Kbps enabled. High speed rate shift needs to be enabled.
7	í 0 1	High speed rate shift disabled High speed rate shift enabled

BREAK LENGTH
Type:	Register
Format:	AT [cmds] S21=n [cmds]
Default:	10
Range:	0-255
Unit:	10 ms
Description:	Sets the length of error control mode breaks sent from DCE to DTE

CLOCK
Type:	Configuration
Format:	AT [cmds] Kn [cmds]
Description:	Displays connection duration or real time
Command		Function
í K0		Connection duration displayed in ATI3
K1		Real time displayed in ATI3. To set clock (military time) use ATI3=HH:MM:SSK1.

DATA SET READY (DSR)
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Selects DSR options
Command	Function
í &S0	DSR forced high
&S1	DSR controlled by modem
&S2	DSR toggled, CTS follows CD
&S3	DSR toggled

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [cmds]
Example:	ATDT 443-3388,,,1111;
Description:	Dials telephone number according to any modifiers included in the string
Note:	Any combination of modifiers can be used to produce the desired dial functions in sequence.
Command	Function
í P	Pulse dialing enabled
T	Tone dialing enabled
,	Dialing paused for 2 seconds
;	Modem returned to command state after dialing. Can only be placed at the end of the dial command.
"	Dials letters as if they were numbers; ATDT"GOMICRO"
!	Flash function initiated
@	Dial, wait for quiet answer, then continue to execute the rest of the dial string
W	Dial, wait for second dial tone, then continue to execute the rest of the dial string
R	Answer mode enabled; originate mode disabled following handshake initiation.

DIAL - STORED NUMBER
Type:	Immediate
Format:	AT [cmds] DSn [cmds]
Description:	Dial stored number from memory location n

DISCONNECT BUFFER DELAY
Type:	Register
Format	AT [cmds] S38=n [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.

DSR DELAY
Type:	Register
Format:	AT [cmds] S24=n [cmds]
Default:	25
Range:	0-255
Unit:	.1 second
Description:	Sets the length of the DSR pulse signal

ECHO
Type:	Configuration
Format:	AT [cmds] En [cmds]
Description:	Controls echo function; display keyboard commands when enabled.
Command	Function
E0	Echo function disabled
E1	Echo function enabled

ECHO - ON-LINE
Type:	Configuration
Format:	AT [cmds] Fn [cmds]
Description:	Selects whether data sent while in data mode are echoed
Command	Function
F0	Local echo enabled
í F1	Local echo disabled

ESCAPE SEQUENCE
Type:	Immediate
Format:	+++AT [cmds] <CR>
Description:	Initiates the escape sequence and returns the modem to the on-line command state if it receives three escape characters set in S2 within the time allotted by S12.
Note: Do not precede this command with AT.

FLOW CONTROL CHARACTER - XOFF
Type:	Register
Format:	AT [cmds] S23=n [cmds]
Default:	19
Range:	11-127
Unit:	ASCII
Description:	Sets the character used to represent XOFF

FLOW CONTROL CHARACTER - XON
Type:	Register
Format:	AT [cmds] S22=n [cmds]
Default:	17
Range:	11-127
Unit:	ASCII
Description:	Sets the character used to represent XON

FLOW CONTROL TYPE
Type:	Configuration
Format:	AT [cmds] &Hn [cmds]
Description:	Sets type of flow control used by modem
Command	Function
í &H0	Flow control disabled
&H1	CTS/RTS flow control enabled
&H2	XON/XOFF flow control enabled
&H3	CTS/RTS and XON/XOFF flow control enabled

FLOW CONTROL TYPE
Type:	Configuration
Format:	AT [cmds] &Rn [cmds]
Description:	Controls receive data hardware flow control and RTS signals
Command	Function
&R0	Delay CTS after RTS. See S26 on length of time.
&R1	Modem ignores RTS
í &R2	Received data to DTE when RTS is on

FLOW CONTROL PASSTHROUGH
Type:	Configuration
Format:	AT [cmds] &In [cmds]
Description:	Allows modem to act on, then transmit XON/XOFF characters.
Command	Function
í &I0	Software flow control disabled
&I1	XON/XOFF passthrough enabled
&I2	XON/XOFF passthrough disabled
&I3	ENQ/ACK enabled in host mode
&I4	ENQ/ACK enabled in terminal mode
&I5	XON/XOFF passthrough disabled in error correction mode

GUARD TONE
Type:	Configuration
Format:	AT [cmds] &Gn [cmds]
Description:	Commands the modem to transmit a guard tone
Note: Used primarily for international data transmission
Command	Function
í &G0	Guard tone disabled
&G1	550Hz guard tone enabled
&G2	1800Hz guard tone enabled

HOOK CONTROL
Type:	Immediate
Format:	AT [cmds] Hn [cmds]
Description:	Selects whether the modem is on-hook or off-hook
Command	Function
H0	Modem commanded to go on-hook (hang-up)
H1	Modem commanded to go off-hook (pick-up)

LIST AMPERSAND COMMANDS
Type:	Immediate
Format:	AT [cmds] &$ [cmds]
Description:	Displays ampersand (&) commands

LIST DIAL COMMANDS
Type:	Immediate
Format:	AT [cmds] D$ [cmds]
Description:	Displays dial commands

LIST S-REGISTERS
Type:	Immediate
Format:	AT [cmds] S$ [cmds]
Description:	Displays the S-registers

ON-LINE
Type:	Immediate
Format:	AT [cmds] O [cmds]
Description:	Returns to on-line command (data transmission) mode.
Note: The O command must be placed at the end of the command string.

ON-LINE HELP
Type:	Immediate
Format:	AT [cmds] $ [cmds]
Description:	On-line help; displays basic command list.

PAUSE
Type:	Immediate
Format:	AT [cmds] / (slash) [cmds]
Description:	125 msec delay before proceeding with dial string or command

PULSE DIALING
Type:	Configuration
Format:	AT [cmds] P [cmds]
Description:	Enables pulse dialing
Note: This command can be duplicated with the P modifier in the D (Dial) command.

PULSE DIALING RATIO
Type:	Configuration
Format:	AT [cmds] &Pn [cmds]
Description:	Selects pulse dial make/break ratio
Command	Function
&P0	39/61ms at 10pps (North America)
&P1	33/67ms at 10pps (Europe)

RECEIVE-ONLY
Type:	Configuration
Format:	AT [cmds] Cn [cmds]
Description:	Sets receive-only; used if modem is attached to additional monitoring-only systems
Command		Function
C0		Disables transmitter
í C1		Enables transmitter

REPEAT COMMAND STRING
Type:	Configuration
Format:	AT [cmds] > [cmds]
Example:	AT>DT5551212 or ATDT5551212>
Description:	Causes modem to repeat command string until a keyboard key is pressed
Note: If used before or after the ATD command, the modem will redial the number until a connection is established or a maximum of ten attempts is reached.

REPEAT PREVIOUS COMMAND
Type:	Immediate
Format:	A/
Description:	Repeats previous command; mainly used for redial.
Note: Do not precede this command with AT, or follow it with <CR>.

RTS/CTS DELAY
Type:	Register
Format:	AT [cmds] S26=n [cmds]
Default:	1
Range:	0-255
Unit:	.1 second
Description:	Sets the length of time between RTS and CTS

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports product code
I1	Reports ROM checksum
I2	Reports RAM checksum
I3	Reports connection duration and real time
I4	Reports current command settings
I5	Reports NVRAM settings
I6	Reports link diagnostics
I7	Reports product configuration

RESULT CODES
Type:	Configuration
Format:	AT [cmds] Qn [cmds]
Description:	Enables modem to send result codes to the DTE
Command	Function
Q0	Result code sending enabled
Q1	Result code sending disabled

RESULT CODE FORMAT
Type:	Configuration
Format:	AT [cmds] Vn [cmds]
Description:	Selects word or numeric format for information-text and result codes
Command	Function
V0	Numeric format enabled
V1	Verbose (word) format enabled

SELECT CALL PROGRESS RESULT CODES
Type:	Configuration
Format:	AT [cmds] Xn [cmds]
Description:	Enables selection of tone detection and associated result code format options
Command	Function
X0	Busy and dial tone detection disabled; result codes 0-4 enabled.
í X1	Busy and dial tone detection disabled; result codes 0-5, 10, 13, and 18 enabled
X2	Busy tone detection disabled, dial tone detection enabled; result codes 0-6, 10, 13, and 18 enabled; also adaptive dialing, and fast dialing enabled.
X3	Busy tone detection enabled, dial tone detection disabled; result codes 0-5, 7-18 enabled; also adaptive dialing, wait for second dial tone, and wait for answer enabled.
X4	Busy and dial tone detection enabled; result codes 0-10, 13, and 18 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled.
X5	Busy tone detection enabled, dial tone detection disabled; result codes 0-5, 7-18 enabled; also adaptive dialing, wait for second dial tone, and wait for answer enabled.
X6	Busy and dial tone detection enabled; result codes 0-18 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled.
X7	Busy and dial tone detection enabled; result codes 0-11, 13, and 18 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled.
Note: Valid numeric result codes; 0-8, 10-13, and 18.

SOFT RESET
Type:	Immediate
Format:	AT [cmds] Z [cmds]
Description:	Restores modem software default profile

SPEAKER MODE
Type:	Configuration
Format:	AT [cmds] Mn [cmds]
Description:	Selects various speaker options
Command	Function
M0	Speaker disabled
í M1	Speaker enabled until carrier signal detected
M2	Speaker enabled
M3	Speaker enabled following dialing, then disabled after carrier signal detected.

SPEAKER VOLUME
Type:	Configuration
Format:	AT [cmds] Ln [cmds]
Description:	Controls speaker volume
Command	Function
L0	Low volume setting
L1	Low volume setting
í L2	Medium volume setting
L3	Highest volume setting

STATUS-REGISTER
Type:	Configuration
Format:	Read: AT [cmds] Sn? [cmds] Write: AT [cmds] Sn=x [cmds]
Description:	Writes to or reads from a specified register
Command		Function
Sn.b=x		Write to register bit b using values 0 (off) and 1 (on) for x

TEST MODES
Type:	Configuration
Format:	AT [cmds] S16=n [cmds]
Description:	Controls loopback tests, analog, digital, remote digital, and self tests.
Command		Function
S16=0		Testing disabled
S16=1		Local digital loopback enabled
S16=2		Dial test (Factory testing only)
S16=4		Test pattern enabled (transmitted on CONNECT, either on answering or originate)
S16=5		Local analog loopback and test pattern enabled
S16=8		Remote digital loopback enabled

TONE DIALING
Type:	Configuration
Format:	AT [cmds] T [cmds]
Description:	Enables tone dialing mode
Note: This command can be duplicated with the T modifier in the D (Dial) command.

V.32 - HANDSHAKE TIME
Type:	Register
Format:	AT [cmds] S28=n [cmds]
Default:	8
Range:	0-255
Unit:	.1 second
Description:	Sets length of V.32 handshake