3COM CORPORATION
US ROBOTICS COURIER INTERNAL I-MODEM
| 
 Card Type  | 
 Modem (synchronous/asynchronous)  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Maximum Modem Rate  | 
 56Kbps  | 
| 
 ISDN Transfer rate  | 
 64Kbps  | 
| 
 Maximum Fax Rate  | 
 14.4Kbps  | 
| 
 Data Modulation Protocol  | 
 Bell 103/212A ITU-T x2, V.34, V.FC, V.32, V.32terbo, V.32bis  | 
| 
 ISDN Protocol  | 
 V.120, V.110  | 
| 
 Fax Modulation Protocol  | 
 Unidentified  | 
| 
 Error Correction/Compression  | 
 MNP5, V.42, V.42bis, HST  | 
| 
 Fax Class  | 
 Class I & II  | 
| 
 Data Bus  | 
 8-bit ISA  | 
| 
 Card Size  | 
 Full-length, full-height card  | 

| 
 CONNECTIONS  | ||||||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | |||
| 
 RJ-45 connector  | 
 CN1  | 
 RJ-45 connector  | 
 CN2  | |||
| 
 USER CONFIGURABLE SETTINGS  | ||
| 
 Function  | 
 Label  | 
 Position  | 
| 
 í Load &F0 setting upon reset | 
 SW1/1  | 
 Off  | 
| 
 Load NVRAM settings upon reset  | 
 SW1/1  | 
 On  | 
| 
 Modem acts on AT commands  | 
 SW1/2  | 
 On  | 
| 
 Modem ignores AT commands  | 
 SW1/2  | 
 Off  | 
| 
 í Factory configured - do not alter | 
 SW1/3  | 
 Unidentified  | 
| 
 í Factory configured - do not alter | 
 SW1/4  | 
 Unidentified  | 
| 
 SERIAL PORT ADDRESS  | |||
| 
 Setting  | 
 JP1  | 
 JP2  | 
 JP3  | 
| 
 COM1 (3F8h)  | 
 Open  | 
 Open  | 
 Open  | 
| 
 COM2 (2F8h)  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 COM3 (3E8h)  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 COM4 (2E8h)  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 Plug & Play  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 INTERRUPT  | |||||
| 
 IRQ  | 
 JP4  | 
 JP5  | 
 JP6  | 
 JP7  | 
 JP8  | 
| 
 2  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 3  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 4  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 5  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
| 
 7  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 SUPPORTED COMMAND SET  | 
| 
 Basic AT Commands  | 
| 
 AT, ‘+++’, A/  | 
| 
 A, B, C, E, F, O, V  | 
| 
 &C, &G, &Z  | 
| 
 S Registers  | 
| 
 S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S26  | 
| 
 Note: See MHI Help File for full command documentation. | 
Proprietary AT Command Set
| 
 ADDITIONAL RESULT CODES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &An [cmds]  | 
| 
 Description:  | 
 Controls the display of the additional result codes  | 
| 
 Command  | 
 Function  | 
| 
 í &A0 | 
 Do not display ARQ result codes  | 
| 
 &A1  | 
 Display ARQ result codes  | 
| 
 &A2  | 
 Display ARQ result codes, HST, V.32, V.FC, V.34 or Digital modulation indicator  | 
| 
 &A3  | 
 Display ARQ result codes and error control indicator LAPM, HST, MNP, SYNC, V.120, or NONE  | 
| 
 BREAK HANDLING  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Yn [cmds]  | 
| 
 Description:  | 
 Controls the break handling  | 
| 
 Command  | 
 Function  | 
| 
 í &Y0 | 
 Destructive, don’t send break  | 
| 
 &Y1  | 
 Destructive, expedited break sent  | 
| 
 &Y2  | 
 Nondestructive, expedited break sent  | 
| 
 &Y3  | 
 Non destructive un-expedited break sent  | 
| 
 CONNECTION RATE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Nn [cmds]  | 
| 
 Description:  | 
 Controls the connection rate  | 
| 
 Command  | 
 Function  | 
| 
 í &N0 | 
 Variable rate  | 
| 
 &N1  | 
 300bps  | 
| 
 &N2  | 
 1200bps  | 
| 
 &N3  | 
 2400bps  | 
| 
 &N4  | 
 4800bps  | 
| 
 &N5  | 
 7200bps  | 
| 
 &N6  | 
 9600bps  | 
| 
 &N7  | 
 12Kbps  | 
| 
 &N8  | 
 14.4Kbps  | 
| 
 &N9  | 
 16.8Kbps  | 
| 
 &N10  | 
 19.2Kbps  | 
| 
 &N11  | 
 21.6Kbps  | 
| 
 &N12  | 
 24Kbps  | 
| 
 &N13  | 
 26.4Kbps  | 
| 
 &N14  | 
 28.8Kbps  | 
| 
 &N15  | 
 31.2Kbps  | 
| 
 &N16  | 
 33.6Kbps  | 
| 
 DATA COMPRESSION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Kn [cmds]  | 
| 
 Description:  | 
 Controls the data compression  | 
| 
 Command  | 
 Function  | 
| 
 &K0  | 
 Data compression disabled  | 
| 
 í &K1 | 
 Use auto enable/disable data compression  | 
| 
 &K2  | 
 Data compression always enabled  | 
| 
 &K3  | 
 Selective data compression  | 
| 
 DATA SET READY (DSR)  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Sn [cmds]  | 
| 
 Description:  | 
 Selects DSR options  | 
| 
 Command  | 
 Function  | 
| 
 &S0  | 
 DSR forced high  | 
| 
 í &S1 | 
 DSR high only while modem is handshaking or connected  | 
| 
 &S2  | 
 Pulsed DSR sent with CTS following CD when the carrier is lost  | 
| 
 &S3  | 
 Pulsed DSR sent following CD when the carrier is lost  | 
| 
 &S4  | 
 Send the computer a DSR signal at the same time as the CD  | 
| 
 &S5  | 
 Send DSR normally, and follow CTS with CD  | 
| 
 DATA TERMINAL READY (DTR)  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Dn [cmds]  | 
| 
 Description:  | 
 Selects modem response to DTR  | 
Note: The action each variant of &D causes depends on the setting of &Q | |
| 
 Command  | 
 Function  | 
| 
 í &D0 | 
 Modem does not respond to DTR  | 
| 
 &D1  | 
 Modem goes to command mode after DTR goes is off  | 
| 
 &D2  | 
 Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.  | 
| 
 DIAL  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] D<#> [cmds]  | 
| 
 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  | 
| 
 DL  | 
 Re-dial last number  | 
| 
 DP  | 
 Pulse dialing enabled  | 
| 
 DR  | 
 Answer mode enabled; originate mode disabled following handshake initiation.  | 
| 
 DS=n  | 
 Dial stored telephone number n  | 
| 
 DT  | 
 Tone dialing enabled/Pulse dialing disabled  | 
| 
 DW  | 
 Dialing resumed following dial tone detection  | 
| 
 D,  | 
 Dialing paused for amount of time specified in S8 register  | 
| 
 D"WXY"  | 
 Optional method of denoting telephone numbers. Letters enclosed in quotes are interpreted as numbers according to the system found on a telephone keypad.  | 
| 
 D@  | 
 Wait for Quite 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.  | 
| 
 D/  | 
 Pause for 125 milliseconds  | 
| 
 ERROR CONTROL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Mn [cmds]  | 
| 
 Description:  | 
 Selects the error control protocol  | 
| 
 Command  | 
 Mode  | 
| 
 í &M0 | 
 Normal mode, no error control  | 
| 
 &M1  | 
 On-line synchronous mode, no error control  | 
| 
 &M4  | 
 Normal/ARQ mode,  | 
| 
 &M5  | 
 ARQ asynchronous mode  | 
| 
 &M6  | 
 V.25bis synchronous mode.  | 
| 
 &M7  | 
 V.25bis synchronous mode using HDLC link protocol  | 
| 
 FACTORY DEFAULT PROFILE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &F [cmds]  | 
| 
 Description:  | 
 Sets values in active profile to values found in the default profile  | 
| 
 Command  | 
 Function  | 
| 
 í &F0 | 
 Load No Flow Control template settings  | 
| 
 &F1  | 
 Load Hardware Flow Control template settings  | 
| 
 &F2  | 
 Load Software Flow Control template settings  | 
| 
 HARDWARE RESET  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] Z! [cmds]  | 
| 
 Description:  | 
 Performs a hardware reset  | 
| 
 HELP  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] $ [cmds]  | 
| 
 Description:  | 
 Display the help commands for the selected command sets  | 
| 
 Command  | 
 Function  | 
| 
 #$  | 
 Display the help pannels for the octothorpe (#) command set  | 
| 
 *$  | 
 Displays the help pannels for the * command set  | 
| 
 HOOK CONTROL  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] Hn [cmds]  | 
| 
 Description:  | 
 Selects whether the modem is on-hook or off-hook  | 
| 
 Command  | 
 Function  | 
| 
 í H0 | 
 Modem commanded to go on-hook (hang-up)  | 
| 
 LINE SELECTION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Ln [cmds]  | 
| 
 Description:  | 
 Selects the phone line type  | 
| 
 Command  | 
 Function  | 
| 
 &L0  | 
 Switched line (PSTN/Dial-up)  | 
| 
 MODEM CLOCK  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Kn [cmds]  | 
| 
 Description:  | 
 Controls the modem clock  | 
| 
 Command  | 
 Function  | 
| 
 í K0 | 
 If on-line, display current call duration; if off-line, display the last call’s duration  | 
| 
 K1  | 
 Display the actual time (set clock using ATI3=HH:MM:SS K1)  | 
| 
 RECEIVE DATA FLOW CONTROL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &In [cmds]  | 
| 
 Description:  | 
 Controls the receive data flow control  | 
| 
 Command  | 
 Jack Type  | 
| 
 í &I0 | 
 Disables XON/XOFF flow control  | 
| 
 &I1  | 
 Modem acts on typed XON/XOFF commands, Ctrl -S, or Ctrl -Q and passes them to remote device  | 
| 
 &I2  | 
 Modem acts on typed XON/XOFF commands but removes them from data stream  | 
| 
 &I3  | 
 Hewlett Packard host mode  | 
| 
 &I4  | 
 Hewlett Packard terminal mode  | 
| 
 &I5  | 
 Enable flow control on the phone link when the connection is not under error control  | 
| 
 REPORT INFORMATION  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] In [cmds]  | 
| 
 Description:  | 
 Displays information requested  | 
| 
 Command  | 
 Function  | 
| 
 I0  | 
 Reports 4 digit product code  | 
| 
 I1  | 
 Reports results of ROM checksum  | 
| 
 I2  | 
 Reports results of RAM test  | 
| 
 I3  | 
 Reports the product name  | 
| 
 I4  | 
 Reports the current modem settings  | 
| 
 I5  | 
 Reports the settings stored in NVRAM  | 
| 
 I6  | 
 Reports statistics for the last call  | 
| 
 I7  | 
 Reports product configuration  | 
| 
 I10  | 
 Reports dial security account status information  | 
| 
 I11  | 
 Displays high speed connection report  | 
| 
 I12  | 
 Display the ISDN settings  | 
| 
 RESULT CODES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Qn [cmds]  | 
| 
 Description:  | 
 Enables modem to send result codes to the DTE  | 
| 
 Command  | 
 Function  | 
| 
 í Q0 | 
 Result code sending enabled  | 
| 
 Q1  | 
 Result code sending disabled  | 
| 
 Q2  | 
 Suppress result codes when answering  | 
| 
 RTS/CTS  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Rn [cmds]  | 
| 
 Description:  | 
 Selects RTS/CTS options  | 
| 
 Command  | 
 Function  | 
| 
 í &R0 | 
 CTS follows RTS in data mode; RTS is ignored in command mode.  | 
| 
 &R1  | 
 CTS forced high, RTS is ignored.  | 
| 
 &R2  | 
 Enable hardware flow control of received data  | 
| 
 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.  | 
| 
 X1  | 
 Busy and dial tone detection disabled; result codes 0 - 5 & 10 enabled.  | 
| 
 X2  | 
 Busy tone detection disabled, dial tone detection enabled; result codes 0 - 6 & 10 enabled.  | 
| 
 X3  | 
 Busy tone detection enabled, dial tone detection disabled; result codes 0 - 5, 7 & 10 enabled.  | 
| 
 í X4 | 
 Busy and dial tone detection enabled; result codes 0 - 7 & 10 enabled.  | 
| 
 X5  | 
 Busy tone detection enabled, dial tone detection disabled, all result codes enabled  | 
| 
 X6  | 
 All result codes enabled  | 
| 
 X7  | 
 Voice detection disabled, all result codes enabled  | 
| 
 SERIAL PORT RATE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Bn [cmds]  | 
| 
 Description:  | 
 Controls the serial port rate  | 
| 
 Command  | 
 Function  | 
| 
 í &B0 | 
 Variable serial port rate  | 
| 
 &B1  | 
 Fixed serial port rate  | 
| 
 &B2  | 
 In answer mode use fixed rate for ARQ calls and variable rate for non ARQ calls.  | 
| 
 TEST MODES  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] &Tn  | 
| 
 Description:  | 
 Selects test options  | 
| 
 Command  | 
 Function  | 
| 
 &T0  | 
 End current test  | 
| 
 &T3  | 
 Begin local digital loopback  | 
| 
 &T4  | 
 Grant remote digital loopback request  | 
| 
 &T5  | 
 Deny remote digital loopback request  | 
| 
 &T6  | 
 Request remote digital loopback  | 
| 
 &T7  | 
 Request remote digital loopback and self-test  | 
| 
 TRANSMIT DATA FLOW CONTROL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Hn [cmds]  | 
| 
 Description:  | 
 Controls the transmit data flow  | 
| 
 Command  | 
 Function  | 
| 
 í &H0 | 
 Flow control disabled  | 
| 
 &H1  | 
 Hardware flow control enabled  | 
| 
 &H2  | 
 Software flow control enabled  | 
| 
 &H3  | 
 Both hardware and software flow control enabled  | 
| 
 WRITE CURRENT SETTINGS  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] &W [cmds]  | 
| 
 Description:  | 
 Writes the current settings to NVRAM  | 
Extended AT Commands
| 
 ASSIGN PASSWORD  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] %V=PWn [cmds]  | 
| 
 Description:  | 
 Assign the password in account n in security account  | 
| 
 CALL TYPE  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] *Vn [cmds]  | |
| 
 Description:  | 
 Sets the call type  | |
| 
 Bit  | 
 Unit  | 
 Function  | 
| 
 *V1  | 
 0 1  | 
 3.1 kHz audio (modem/fax) Speech  | 
| 
 *V2  | 
 0 1 2 3 4 5  | 
 Autodetect V.120 rate adaption only V.110 rate adaption only Modem or fax only Clear-channel synchronous Asychronous to synchronous PPP conversion  | 
| 
 CENTRAL OFFICE PROTOCOL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] *Wn [cmds]  | 
| 
 Description:  | 
 Sets the protocol used by the telephone company’s central office  | 
| 
 Command  | 
 Function  | 
| 
 *W0  | 
 AT&T 5ESS custom  | 
| 
 *W1  | 
 Northern Telecom DMS-100  | 
| 
 *W2  | 
 National ISDN-1  | 
| 
 *W3  | 
 National ISDN-2  | 
| 
 CLOCK SPEED  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Nn [cmds]  | 
| 
 Description:  | 
 Sets clock speed for synchronous mode  | 
| 
 Command  | 
 Function  | 
| 
 %N2  | 
 1200bps  | 
| 
 %N3  | 
 2400bps  | 
| 
 %N4  | 
 4800bps  | 
| 
 %N5  | 
 7200bps  | 
| 
 %N6  | 
 9600bps  | 
| 
 %N7  | 
 12000bps  | 
| 
 %N8  | 
 14400bps  | 
| 
 %N9  | 
 16800bps  | 
| 
 %N10  | 
 19200bps  | 
| 
 DIALING MODE  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] *On [cmds]  | 
| 
 Description:  | 
 Sets the dialing mode  | 
| 
 Command  | 
 Function  | 
| 
 *O0  | 
 En-bloc dialing  | 
| 
 *O1  | 
 Overlap dialing  | 
| 
 DIRECTORY NUMBER  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] *P [cmds]  | 
| 
 Description:  | 
 Sets the Directory number assigned by the phone company  | 
| 
 Command  | 
 Function  | 
| 
 *P1  | 
 The DN for Voice B-channel  | 
| 
 *P2  | 
 The DN for Data B-channel  | 
| 
 ERASE SECURITY SETTINGS  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %En [cmds]  | 
| 
 Description:  | 
 Erases selected security settings  | 
| 
 Command  | 
 Function  | 
| 
 %E1  | 
 Erase local access password  | 
| 
 %E2  | 
 Erase autopass password  | 
| 
 %E3  | 
 Erase passwords in accounts 0-9  | 
| 
 %E4  | 
 Erase phone numbers in accounts 0-9  | 
| 
 %E5  | 
 Disable account, dialback, and new number fields in accouns 0-9  | 
| 
 LOCAL ACCESS PASSWORD  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Ln [cmds]  | 
| 
 Description:  | 
 Set local access password  | 
| 
 PASSWORD SECURITY  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] %P [cmds]  | 
| 
 Description:  | 
 Disable password security  | 
| 
 REMOTE CONFIGURATION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Cn [cmds]  | 
| 
 Description:  | 
 Controls the remote configuration  | 
| 
 Command  | 
 Function  | 
| 
 %C0  | 
 Defer configuration changes until the call is ended  | 
| 
 %C1  | 
 Cancel configuration changes and restore the original configuration  | 
| 
 %C2  | 
 Force configuration changes to take effect immediately  | 
| 
 REMOTE CONFIGURATION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Fn [cmds]  | 
| 
 Description:  | 
 Configure another device’s data remotely  | 
| 
 Command  | 
 Function  | 
| 
 %F0  | 
 No parity, 8 data bits  | 
| 
 %F1  | 
 Mark parity, 7 data bits  | 
| 
 %F2  | 
 Odd parity, 7 data bits  | 
| 
 %F3  | 
 Even parity, 7 data bits  | 
| 
 RINGING SIGNAL VOLUME  | |
| 
 Type:  | 
 Configuration  | 
| 
 Default:  | 
 Unidentified  | 
| 
 Range:  | 
 0-9  | 
| 
 Format:  | 
 AT [cmds] *Rn [cmds]  | 
| 
 Description:  | 
 Sets the ringing signal volume  | 
| 
 SECURITY ACCOUNTS  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %An [cmds]  | 
| 
 Description:  | 
 Create and configure security accounts  | 
| 
 SECURITY ACCOUNTS  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Sn [cmds]  | 
| 
 Description:  | 
 Access security accounts  | 
| 
 SERIAL PORT RATE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Bn [cmds]  | 
| 
 Description:  | 
 Remotely configure a modem’s serial port rate  | 
| 
 Command  | 
 Function  | 
| 
 %B0  | 
 110bps  | 
| 
 %B1  | 
 300bps  | 
| 
 %B2  | 
 600bps  | 
| 
 %B3  | 
 1200bps  | 
| 
 %B4  | 
 2400bps  | 
| 
 %B5  | 
 4800bps  | 
| 
 %B6  | 
 9600bps  | 
| 
 %B7  | 
 19200bps  | 
| 
 %B8  | 
 38400bps  | 
| 
 %B9  | 
 57600bps  | 
| 
 %B10  | 
 115200bps  | 
| 
 SERVICE PROFILE ID  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Sn=? [cmds]  | 
| 
 Description:  | 
 Sets the service profile ID  | 
| 
 Command  | 
 Function  | 
| 
 *S1  | 
 The SPID for the Voice B-channel  | 
| 
 *S2  | 
 The SPID for the Data B-channel  | 
| 
 TELEPHONE COMPANY PROTOCOL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] *Mn [cmds]  | 
| 
 Description:  | 
 Set switch protocol  | 
| 
 Command  | 
 Function  | 
| 
 *M0  | 
 Point-to-point  | 
| 
 *M1  | 
 Multipoint  | 
| 
 TERMINAL ENDPOINT ID  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] *T [cmds]  | 
| 
 Description:  | 
 Sets the Terminal endpoint ID  | 
| 
 Command  | 
 Function  | 
| 
 *T1  | 
 0-63 for the Voice B-channel  | 
| 
 *T2  | 
 0-63 for the Data B-channel  | 
| 
 TONE FREQUENCIES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Tn [cmds]  | 
| 
 Description:  | 
 Enables recognition of the tone frequencies  | 
| 
 VOLUME  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] *Cn [cmds]  | 
| 
 Description:  | 
 Sets the volume of the sound that comes out of the analog device jack  | 
| 
 Command  | 
 Function  | 
| 
 *C0  | 
 Off  | 
| 
 *C1  | 
 Volume level 1  | 
| 
 *C2  | 
 Volume level 2  | 
| 
 *C3  | 
 Volume level 3  | 
| 
 *C4  | 
 Volume level 4  | 
| 
 *C5  | 
 Volume level 5  | 
| 
 *C6  | 
 Volume level 6  | 
| 
 *C7  | 
 Volume level 7  | 
| 
 *C8  | 
 Volume level 8  | 
| 
 *C9  | 
 Volume level 9  | 
S(status) -REGISTERS
| 
 BIT MAPPED REGISTER  | ||
| 
 Type:  | 
 Register  | |
| 
 Format:  | 
 AT [cmds] S15=n [cmds]  | |
| 
 Unit:  | 
 Bit-mapped  | |
| 
 Description:  | 
 Controls fallback  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Disable the modem’s extra high frequency equalization if it causes problems on shorter -link calls- for HST modulation only  | 
| 
 1  | 
 2  | 
 Disable online fallback  | 
| 
 2  | 
 4  | 
 Disable 450bps back channel ---HST only  | 
| 
 3  | 
 8  | 
 Reset non-ARQ mode transmit buffer from 1.5Kbytes to 128  | 
| 
 4  | 
 16  | 
 Disable MNP level 4  | 
| 
 5  | 
 32  | 
 Set backspace key to delete  | 
| 
 6  | 
 64  | 
 Set for some incompatable 2400bps MNP-I modems  | 
| 
 7  | 
 128  | 
 Custom applications only  | 
| 
 BIT MAPPED REGISTER S16  | ||
| 
 Type:  | 
 Register  | |
| 
 Format:  | 
 AT [cmds] S16=n [cmds]  | |
| 
 Unit:  | 
 Bit-mapped  | |
| 
 Description:  | 
 Controls loopback tests and test pattern  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 2  | 
 4  | 
 Test pattern  | 
| 
 3  | 
 8  | 
 Remote digital loopback  | 
| 
 BIT MAPPED REGISTER S53  | |||
| 
 Type:  | 
 Register  | ||
| 
 Format:  | 
 AT [cmds] S53=n [cmds]  | ||
| 
 Default:  | 
 126  | ||
| 
 Description:  | 
 Bit mapped register  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 0  | 
 1  | 
 Dial security enabled  | |
| 
 1  | 
 2  | 
 Prompting enabled  | |
| 
 2  | 
 4  | 
 Local access password protection enabled  | |
| 
 BIT MAPPED REGISTER S54  | |||
| 
 Type:  | 
 Register  | ||
| 
 Format:  | 
 AT [cmds] S54=n [cmds]  | ||
| 
 Unit:  | 
 Bit mapped  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 0  | 
 1  | 
 Disable 2400 symbol rate  | |
| 
 1  | 
 2  | 
 Disable 2743 symbol rate  | |
| 
 2  | 
 4  | 
 Disable 2800 symbol rate  | |
| 
 3  | 
 8  | 
 Disable 3000 symbol rate  | |
| 
 4  | 
 16  | 
 Disable 3200 symbol rate  | |
| 
 5  | 
 32  | 
 Disable 3429 symbol rate  | |
| 
 6  | 
 64  | 
 Disable Call Indicate  | |
| 
 7  | 
 128  | 
 Disable V.8  | |
| 
 BIT-MAPPED REGISTER S13  | ||
| 
 Format:  | 
 AT [cmds] S13=n [cmds]  | |
| 
 Default:  | 
 170  | |
| 
 Range:  | 
 0-174  | |
| 
 Unit:  | 
 Bit-mapped  | |
| 
 Description:  | 
 Controls echo, result codes and display, dial mode, and answer/originate mode.  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Reset when DTR drops  | 
| 
 1  | 
 2  | 
 Reverse normal auto answer mode  | 
| 
 2  | 
 4  | 
 Disable 250 msec pause before result code display  | 
| 
 3  | 
 8  | 
 On DTR signal, Autodial the number stored in NVRAM at position 0  | 
| 
 4  | 
 16  | 
 At power on/reset, auto dial number stored in NVRAM at position 0  | 
| 
 5  | 
 32  | 
 Disable HST  | 
| 
 6  | 
 64  | 
 Disable MNP level 3  | 
| 
 7  | 
 128  | 
 Hardware reset  | 
| 
 BIT-MAPPED REGISTER S14  | ||
| 
 Format:  | 
 AT [cmds] S14=n [cmds]  | |
| 
 Default:  | 
 170  | |
| 
 Range:  | 
 0-174  | |
| 
 Unit:  | 
 Bit-mapped  | |
| 
 Description:  | 
 Controls echo, result codes and display, dial mode, and answer/originate mode.  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 í 1 | 
 Disconnect on escape code  | 
| 
 1  | 
 2  | 
 Send result codes only when originating a call  | 
| 
 BIT-MAPPED REGISTER S21  | |
| 
 Format  | 
 AT [cmds] S21=n [cmds]  | 
| 
 Default:  | 
 Unidentified  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Unit:  | 
 .01 second  | 
| 
 Description:  | 
 Sets the duration of breaks sent from the modem to the computer or terminal  | 
| 
 BIT-MAPPED REGISTER S28  | |
| 
 Format  | 
 AT [cmds] S28=n [cmds]  | 
| 
 Default:  | 
 Unidentified  | 
| 
 Range:  | 
 8  | 
| 
 Unit:  | 
 .1 second  | 
| 
 Description:  | 
 Sets the duration of the extra 3000/600 Hz answer tones sent during handshaking.  | 
| 
 BITMAPPED REGISTER S27  | ||
| 
 Format  | 
 AT [cmds] S27=n [cmds]  | |
| 
 Default:  | 
 Unidentified  | |
| 
 Range:  | 
 0  | |
| 
 Unit:  | 
 Bit-mapped  | |
| 
 Description:  | 
 Selects modulation  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Enable ITU-T V.21  | 
| 
 1  | 
 2  | 
 Enable un-encoded modulation in V.32 mode  | 
| 
 2  | 
 4  | 
 Disable V.32 modulation  | 
| 
 3  | 
 8  | 
 Disable 2100Hz answer tone  | 
| 
 4  | 
 0 16 0 16  | 
 V.42 detection, LAPM error control, MNP Disable MNP Disable V.42 detection and LAPM Disable detection phase  | 
| 
 5  | 
 0 32 0 32  | 
 V.42 detection, LAPM error control, MNP Disable MNP Disable V.42 detection and LAPM Disable detection phase  | 
| 
 7  | 
 128  | 
 Unusual software incompatibility  | 
| 
 BIT-MAPPED REGISTER S34  | ||
| 
 Type:  | 
 Register  | |
| 
 Format:  | 
 AT [cmds] S34n [cmds]  | |
| 
 Default:  | 
 0  | |
| 
 Range:  | 
 Unidentified  | |
| 
 Unit:  | 
 Unidentified  | |
| 
 Description:  | 
 Controls V.32bis  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Disable V.32bis  | 
| 
 1  | 
 2  | 
 Disable modem’s enhanced proprietary V.32bis modulation  | 
| 
 2  | 
 4  | 
 Disable the faster retrains that occure during proprietary V.32terbo modulation  | 
| 
 3  | 
 8  | 
 Enable V.23  | 
| 
 4  | 
 16  | 
 Force the MR LED to show DSR  | 
| 
 5  | 
 32  | 
 Enable MI/MIC  | 
| 
 6  | 
 64  | 
 Disable remote access busy message  | 
| 
 7  | 
 128  | 
 Disable V.32terbo  | 
| 
 BIT-MAPPED REGISTER S51  | ||
| 
 Format  | 
 AT [cmds] S51=n [cmds]  | |
| 
 Default:  | 
 0  | |
| 
 Range:  | 
 Unidentified  | |
| 
 Unit:  | 
 Bit-mapped  | |
| 
 Description:  | 
 MNP/V.42 control  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Disable MNP/V.42 for V.22  | 
| 
 1  | 
 2  | 
 Disable MNP/V.42 for V.22bis  | 
| 
 2  | 
 4  | 
 Disable MNP/V.42 for V.32/V.32bis/V.32terbo  | 
| 
 6  | 
 64  | 
 Disable selective reject  | 
| 
 7  | 
 128  | 
 Enable handset exclusion delay  | 
| 
 BIT-MAPPED REGISTER S55  | ||
| 
 Type:  | 
 Register  | |
| 
 Format  | 
 AT [cmds] S55=n [cmds]  | |
| 
 Unit:  | 
 Bit mapped  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Disable 8S-2D mapping  | 
| 
 1  | 
 2  | 
 Disable 16S-4D mapping  | 
| 
 2  | 
 4  | 
 Disable 32S-2D mapping  | 
| 
 3  | 
 8  | 
 Disable 64S-4D mapping  | 
| 
 BIT-MAPPED REGISTER S56  | ||
| 
 Type:  | 
 Register  | |
| 
 Format  | 
 AT [cmds] S56? [cmds]  | |
| 
 Unit:  | 
 Bit mapped  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Disable non-linear coding  | 
| 
 1  | 
 2  | 
 Disable TX level deviation  | 
| 
 2  | 
 4  | 
 Disable pre-emphasis  | 
| 
 3  | 
 8  | 
 Disable precoding  | 
| 
 4  | 
 16  | 
 Disable shaping  | 
| 
 6  | 
 64  | 
 Disable V.34  | 
| 
 7  | 
 128  | 
 Disable V.FC  | 
| 
 BIT-MAPPED REGISTER S67  | ||
| 
 Type:  | 
 Register  | |
| 
 Format  | 
 AT [cmds] S67 [cmds]  | |
| 
 Unit:  | 
 Bit mapped  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Disable non-linear coding  | 
| 
 1  | 
 2  | 
 Disable TX level diviation  | 
| 
 2  | 
 4  | 
 Disable preemphasis  | 
| 
 3  | 
 8  | 
 Disable precoding  | 
| 
 4  | 
 16  | 
 Disable shaping  | 
| 
 6  | 
 64  | 
 Disable V.34  | 
| 
 7  | 
 128  | 
 Disable V.FC  | 
| 
 BIT-MAPPED REGISTER S68  | ||
| 
 Type:  | 
 Register  | |
| 
 Format  | 
 AT [cmds] S68 [cmds]  | |
| 
 Unit:  | 
 Bit mapped  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Enable V.110 fallback  | 
| 
 1  | 
 2  | 
 Use fixed network rate  | 
| 
 2  | 
 4  | 
 Fix the network rate at 64Kbps  | 
| 
 3  | 
 8  | 
 Route incoming analog calls to the data port  | 
| 
 4  | 
 16  | 
 Enable a 45-65 second link delay  | 
| 
 5  | 
 32  | 
 Map B1 LED = B-channel 1 and B2 LED to B-channel 2  | 
| 
 6  | 
 64  | 
 Disable all blinking patterns for B-channel LED’s  | 
| 
 BIT-MAPPED REGISTER S69  | ||
| 
 Type:  | 
 Register  | |
| 
 Format  | 
 AT [cmds] S69 [cmds]  | |
| 
 Unit:  | 
 Bit mapped  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 1  | 
 Disable Plug and Play signaling  | 
| 
 DSR RECOGNITION  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S25=n [cmds]  | 
| 
 Default:  | 
 5  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Unit:  | 
 .1 second  | 
| 
 Description:  | 
 Sets DTR recognition time  | 
| 
 DSR SIGNAL  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S24=n [cmds]  | 
| 
 Default:  | 
 150  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Unit:  | 
 .02 second  | 
| 
 Description:  | 
 Sets the duration between pulsed DSR signals when the modem is set to &S2 or &S3.  | 
| 
 FLOW CONTROL CHARACTER - XOFF  | |
| 
 Format  | 
 AT [cmds] S23=n [cmds]  | 
| 
 Default:  | 
 19  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used to represent XOFF  | 
| 
 FLOW CONTROL CHARACTER - XON  | |
| 
 Format  | 
 AT [cmds] S22=n [cmds]  | 
| 
 Default:  | 
 17  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used to represent XON  | 
| 
 GUARD TIME DURATION  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S43=n [cmds]  | 
| 
 Default:  | 
 200  | 
| 
 Unit:  | 
 .02 second  | 
| 
 Description:  | 
 Sets the duration of the guard time for the remote access sequence  | 
| 
 INACTIVITY TIMER  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S19=n [cmds]  | 
| 
 Default:  | 
 Unidentified  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Unit:  | 
 Minute  | 
| 
 Description:  | 
 Sets the duration in minutes for the inactivity timer  | 
| 
 REMOTE ACCESS  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S41=n [cmds]  | 
| 
 Default:  | 
 0  | 
| 
 Description:  | 
 Sets the number of allowable remote access login attempts, thus enabling or disabling remote access.  | 
| 
 REMOTE ACCESS ESCAPE CHARACTER  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S42=n [cmds]  | 
| 
 Default:  | 
 126  | 
| 
 Range:  | 
 Unidentified  | 
| 
 Unit:  | 
 Unitdentified  | 
| 
 Description:  | 
 Stores the ASCII decimal code for the remote access escape character.  | 
| 
 TRANSMIT BUFFER  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S38n [cmds]  | 
| 
 Default:  | 
 0  | 
| 
 Description:  | 
 Sets the time before a forced hang up and clearing of the transmit buffer when DTR drops during an ARQ call.  |