TRANSEND CORPORATION TRANSEND SIXTY-SEVEN Card Type Modem Chip Set Unidentified I/O Options Line in (2), DTE port, power jack Maximum Modem Rate 67.2Kbps Maximum Fax Rate 14.4Kbps Data Modulation Protocol Bell 103A/212A ITU-T V34, V.32bis, V.32, V.22bis, V.8, V.13, V.14, V.24, V.25 Fax Modulation Protocol ITU-T V.17, V.27ter, V.29, V.21 Error Correction/Compression MNP5, V.42, V.42bis Fax Class Class I Data Bus External [Image] CONNECTIONS Function Label Function Label Power Jack CN1 Network port CN4 Line 1 in CN2 DTE port (25-pin CN5 serial connector) Line 2 in CN3 Power switch SW1 DIAGNOSTIC LED(S) LED Color Status Condition TD Green Blinking Modem transmitting data TD Green Off Modem not transmitting data RD Green Blinking Modem is receiving data RD Green Off Modem is not receiving data CD Green On Carrier signal detected or CD override is on CD Green Off Carrier signal not detected CS Green On CTS signal is high CS Green Off CTS signal is low RS Green On RTS signal is high RS Green Off RTS signal is low TR Green On Modem is receiving DTR signal/DTR override is on TR Green Off Modem is not receiving DTR signal OH1 Green On Line 1 is off-hook OH1 Green Off Line 1 is on-hook OH2 Green On Line 2 is off-hook OH2 Green Off Line2 is on-hook TST/NMS Red On Loopback test in progress TST/NMS Green On Modem controlled by Network Management System SUPPORTED COMMAND SET Basic AT Commands AT, +++, A/ E, F, M, O, P, T, V, W, X, Y, Z &G, &P, &T, &W, &X, &Y, &Z Extended AT command set \A, \B, \C, \G, \K, \T, \V, \X S Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S22, S25, S26 Note: See MHI Help File for full command documentation. PROPRIETARY AT COMMAND SET ANSWER Type: Immediate Format: AT [cmds] A Description: Enables answer mode, the modem goes off-hook Command Protocol A0 Connect to line as answer modem A1 Connect to line as originate modem A2 Connect to both lines as originate modem ANSWER MODE Type: Configuration Format: AT [cmds] R [cmds] Description: Allows modem to switch to answer mode after dialing CLEAR TO SEND (CTS) Type: Configuration Format: AT [cmds] &Rn [cmds] Description: Selects CTS options Command Mode &R0 Normal CTS mode &R1 CTS forced high. &R2 CTS follows DCD &R9 CTS equals RTS COMMUNICATION PROTOCOLS Type: Configuration Format: AT [cmds] Bn [cmds] Description: Selects the communication protocol for data calls Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols. Command Protocol B0 Auto selection B1 ITU-T V.21 B2 Bell 103J B3 Bell 212A B5 V.22bis B11 V.32bis B12 V.34 CONFIGURATION PROFILES Type: Immediate Format: AT [cmds] &Vn [cmds] Description: Displays active and stored configuration profiles &V0 Display received signal status &V1 Display active profile DATA CARRIER DETECT (DCD) Type: Configuration Format: AT [cmds] &Cn [cmds] Description: Selects whether the DCD option is enabled or disabled Command Function &C0 DCD enabled &C1 DCD enabled after carrier signal detected &C2 DCD goes off during disconnection &C3 DCD follows V.25bis recommendation DATA SET READY (DSR) Type: Configuration Format: AT [cmds] &Sn [cmds] Description: Selects DSR options Command Function &S0 DSR forced high &S1 DSR high only while modem is handshaking or connected &S2 DSR off for 5 seconds after disconnect &S3 DSR follows off-hook DATA TERMINAL READY (DTR) Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Selects modem response to DTR Command Function &D0 DTR forced high &D1 DTR toggle causes online command mode &D2 Modem disconnects after losing DTR &D3 Resets when DTR turns off 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 Dn Dial telephone number n Dn%passwd Dial telephone number n and send password D[1] [2] Dial two telephone numbers and modifiers ERROR CONTROL Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Sets error control for connections at 1200bps and higher Command Mode &M0 Asynchronous mode &M1 Synchronous connect mode and asynchronous off-line command mode. &M2 Synchronous connect mode and asynchronous off-line command mode and set DTR high. &M3 Synchronous connect mode &M4 Synchronous connect mode and V.25bis autodialer with BISYNC protocol &M5 Synchronous connect mode and V.25bis autodialer with SDLC protocol &M6 Synchronous connect mode and V.25bis asynchronous off-line command mode. 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 &F0 Factory profile 0 &F1 Factory profile 1 &F2 Factory profile 2 &F3 Factory profile 3 &F4 Factory profile 4 &F5 Factory profile 5 &F6 Factory profile 6 &F7 Factory profile 7 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) H2 Normal hang up enabled H3 Fast hang up enabled LINE TYPE Type: Configuration Format: AT [cmds] &Ln [cmds] Description: Selects line type Command Line Type &L0 2-wire switched line &L1 2-wire leased line &L2 4-wire leased line REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports four digit product code I1 Reports CDC volume of EPROM I3 Reports product version number I4 Reports compatibility mode I5 Reports reason for disconnect 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 Q2 Result code sending only in originate mode SPEAKER VOLUME Type: Configuration Format: AT [cmds] Ln [cmds] Description: Controls speaker volume Command Function L0 Low volume setting L1 Low volume setting L2 Medium volume setting L3 Highest volume setting EXTENDED AT COMMAND SET BREAK SEND Type: Configuration Format: AT [cmds] \Bn [cmds] Range: 1-255 Unit: 20ms Description: Sends break to modem AT COMMAND SET Type: Configuration Format: AT [cmds] *NTn [cmds] Description: Enables/disables AT command set. Command Function *NT0 AT command set disabled *NT1 AT command set enabled AUTOMATIC RATE ADAPTATION Type: Configuration Format: AT [cmds] %Rn [cmds] Description: Enables/disables automatic rate adaptation Command Function %R0 Automatic rate adaptation disabled %R1 Automatic rate adaptation enabled with low BER %R2 Automatic rate adaptation enabled with medium BER %R3 Automatic rate adaptation enabled with high BER AUTOREDIAL Type: Configuration Format: AT [cmds] -Rn [cmds] Description: Autoredials. AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD Type: Configuration Format: AT [cmds] %En [cmds] Description: Controls auto-retrain mode and fallback/fall-forward Command Function %E0 Auto-retrain disabled %E1 Auto-retrain enabled BILATERAL DIGITAL LOOP Type: Configuration Format: AT [cmds] *DGn [cmds] Description: Enables/disables bilateral digital loop. Command Function *DG0 Disables bilateral digital loop *DG1 Enables bilateral digital loop BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Description: Configures action of break signal Command Function \K1 Send a break after de-storing data buffers \K2 Break sent immediately \K3 Buffered data sent before break signal BUSY MODE Type: Configuration Format: AT [cmds] :Un [cmds] Description: Enable/disable busy mode. Command Function :U0 Busy mode disable :U3 Busy mode enable CALL BACK Type: Configuration Format: AT [cmds] \Sn [cmds] Description: Enables/disables callback Command Function \S0 Callback enabled \S1 Callback disabled CALL DISREGARD Type: Configuration Format: AT [cmds] *IC [cmds] Description: Disregards incoming call. CARRIER LOSS Type: Configuration Format: AT [cmds] -Pn [cmds] Description: Sets disconnect due to carrier loss. Command Function -P0 Disconnect by rapid carrier loss (8 seconds) -P1 Disconnect by normal carrier loss (45 seconds) CHANNEL Type: Configuration Format: AT [cmds] -An [cmds] Description: Selects transmission channel. Command Function -A0 ATX channel selected -A1 BTX channel selected CLEARDOWN DISCONNECT Type: Configuration Format: AT [cmds] -Fn [cmds] Description: Enable/disable cleardown disconnect. Command Function -F0 Cleardown disconnect disabled -F1 Cleardown disconnect enabled CODED RESPONSE Type: Configuration Format: AT [cmds] *RCn [cmds] Description: Selects coded response speed Command Function *RC0 15 - 4800bps; 18 - 9600bps *RC1 11 - 4800bps; 12 - 9600bps COMMAND STATE Type: Immediate Format: AT [cmds] :Mn [cmds] Description: Enable/disable command state. Command Function :M0 Command state disabled :M1 Command state enabled COMMAND STATE Type: Configuration Format: AT [cmds] :Sn [cmds] Description: Selects number of retrains. Command Function :S0 AT command compatible after reset :S1 V.25bis compatible after reset COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects data compression Command Function %C0 Data compression disabled %C1 MNP5 or bilateral V.42bis compression enabled %C2 V.42bis on transmitted data enabled %C3 V.42bis on received data enabled CONNECT MODE Type: Configuration Format: AT [cmds] \Nn [cmds] Description: Controls the type of connection the modem will operate in Command Function \N0 Normal mode enabled \N1 Direct mode enabled \N2 Reliable mode enabled \N3 Auto-reliable mode enabled \N4 LAPM mode enabled \N5 LAPM or normal mode enabled \N6 LAPM or MNP mode enabled \N7 LAPM, MNP, or normal mode enabled CONNECTION SPEED LOWER LIMIT Type: Configuration Format: AT [cmds] %L [cmds] Description: Sets slowest allowed connection speed. Command Function %L0 Disabled %L1 Disabled %L2 Set minimum connect speed to 1200bps. %L3 Set minimum connect speed to 2400bps. %L4 Set minimum connect speed to 4800bps. %L5 Set minimum connect speed to 9600bps uncoded. %L6 Set minimum connect speed to 9600bps. %L7 Set minimum connect speed to 7200bps %L8 Set minimum connect speed to 12.0Kbps. %L9 Set minimum connect speed to 14.4Kbps. %L11 Set minimum connect speed to 16.8Kbps. %L12 Set minimum connect speed to 19.2Kbps. %L13 Set minimum connect speed to 21.6Kbps. %L14 Set minimum connect speed to 24Kbps. %L15 Set minimum connect speed to 26.4Kbps. %L16 Set minimum connect speed to 28.8Kbps. %L17 Set minimum connect speed to 31.2Kbps. %L18 Set minimum connect speed to 33.6Kbps. CONNECTION SPEED UPPER LIMIT Type: Configuration Format: AT [cmds] %Bn [cmds] Description: Sets fastest allowed connection speed. Command Function %B0 Use DTE speed. %B1 Set maximum connect speed to 300bps. %B2 Set maximum connect speed to 1200bps. %B3 Set maximum connect speed to 2400bps. %B4 Set maximum connect speed to 4800bps. %B5 Set maximum connect speed to 9600bps uncoded. %B6 Set maximum connect speed to 9600bps. %B7 Set maximum connect speed to 7200bps %B8 Set maximum connect speed to 12.0Kbps. %B9 Set maximum connect speed to 14.4Kbps. %B11 Set maximum connect speed to 16.8Kbps. %B12 Set maximum connect speed to 19.2Kbps. %B13 Set maximum connect speed to 21.6Kbps. %B14 Set maximum connect speed to 24Kbps. %B15 Set maximum connect speed to 26.4Kbps. %B16 Set maximum connect speed to 28.8Kbps. %B17 Set maximum connect speed to 31.2Kbps. %B18 Set maximum connect speed to 33.6Kbps. CONNECTION SPEED UPPER LIMIT Type: Configuration Format: AT [cmds] :Bn [cmds] Description: Sets fastest allowed connection speed. Command Function :B0 Use DTE speed. :B1 Set maximum connect speed to 300bps. :B2 Set maximum connect speed to 1200bps. :B3 Set maximum connect speed to 2400bps. :B4 Set maximum connect speed to 4800bps. :B5 Set maximum connect speed to 9600bps uncoded. :B6 Set maximum connect speed to 9600bps. :B7 Set maximum connect speed to 7200bps :B8 Set maximum connect speed to 12.0Kbps. :B9 Set maximum connect speed to 14.4Kbps. :B11 Set maximum connect speed to 16.8Kbps. :B12 Set maximum connect speed to 19.2Kbps. :B13 Set maximum connect speed to 21.6Kbps. :B14 Set maximum connect speed to 24Kbps. :B15 Set maximum connect speed to 26.4Kbps. :B16 Set maximum connect speed to 28.8Kbps. :B17 Set maximum connect speed to 31.2Kbps. :B18 Set maximum connect speed to 33.6Kbps. CT108 FUNCTION DTR Type: Immediate Format: AT [cmds] :Dn [cmds] Description: Selects CT108 function DTR. Command Function :D0 CT108/2 :D1 CT108/1 CT108 FUNCTION DTR Type: Immediate Format: AT [cmds] :Dn [cmds] Description: Selects CT108 function DTR. Command Function :D0 CT108/2 :D1 CT108/1 DATA MODUALTION Type: Configuration Format: AT [cmds] *MMn [cmds] Description: Selects data modulation protocol Command Function *MM0 Automatic modulation selection *MM1 ITU-T V.21 *MM2 Bell 103J *MM3 Bell 212A *MM5 ITU-T V.22bis *MM11 ITU-T V.32bis *MM12 ITU-T V.34 DATA RATE SELECT SIGNAL Type: Configuration Format: AT [cmds] *FBn [cmds] Description: Selects signal response. Command Function *FB0 Ignores data rate select signal *FB1 Signal transition causes DTE speed fallback DIAL ON MANUAL CONNECTION Type: Configuration Format: AT [cmds] %Mn [cmds] Description: Dial on manual connection enable/disable Command Function %M0 Dial on manual connection disabled %M1 Dial on manual connection enabled DIAL STORED NUMBER Type: Configuration Format: AT [cmds] *Aun [cmds] Range: 0-9 Description: Dials number stored at location n when modem is in command state and the DTR signal transitions. DIAL TRANSMISSION LEVEL Type: Configuration Format: AT [cmds] *TDn [cmds] Range: 9-30 Unit: -1dBm Description: Sets transmission level DISCONNECT Type: Configuration Format: AT [cmds] -Hn [cmds] Description: Enable/disable cleardown disconnect. Command Function -H0 Disconnect by data and DCD loss disabled -H1 Disconnect by carrier loss disabled -H2 Disconnect by 4 minute data loss enabled -H3 Disconnect by DCD and data loss enabled DISCONNECT BUFFER DELAY Type: Configuration Format: AT [cmds] %D [cmds] Range: 0-255 Unit: 1 second Description: Sets disconnect buffer delay; %D0 will disable this function. DTE SPEED Type: Configuration Format: AT [cmds] -Un [cmds] Range: 1200-46800 Unit: 1bps Description: Sets DTE speed FAST TRAIN Type: Configuration Format: AT [cmds] *FTn [cmds] Description: Enables/disables fast train. Command Function *FT0 Fast train disabled *FT1 Fast train enabled FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] \Qn [cmds] Description: Sets type of flow control used by modem Command Function \Q0 DTE flow control disabled \Q1 DTE bi-directional XON/XOFF flow control enabled \Q2 CTS flow control by DCE enabled \Q3 Bi-directional RTS/CTS flow control enabled \Q4 DCE flow control disabled \Q5 Unidirectional XON/XOFF flow control by DCE enabled \Q6 CTS flow control to DTE enabled \Q7 CTS flow control to DTE disabled INTERFACE SPEED Type: Configuration Format: AT [cmds] -Vn [cmds] Description: Enable/disable interface speed. Command Function -V0 Interface speed disabled -V1 Interface speed enabled LAPM DETECTI0N PHASE CONTROL Type: Configuration Format: AT [cmds] \Mn [cmds] Description: Enables/disables LMNP detection phase control Command Function \M0 LAPM detection phase control disabled \M1 LAPM detection phase control enabled LEASED LINE Type: Configuration Format: AT [cmds] *LB [cmds] Description: Return to leased line from dial backup. LEASED LINE TRANSMISSION LEVEL Type: Configuration Format: AT [cmds] *TLn [cmds] Range: 9-30 Unit: -1dBm Description: Sets transmission level LIN CURRENT DISCONNECT Type: Configuration Format: AT [cmds] *LCn [cmds] Description: Selects length of disconnect. Command Function *LC0 Line current disconnect disabled *LC1 Short (8ms) disconnect enabled *LC2 Long (90ms) disconnect enabled LOCAL ANALOG LOOPBACK SIGNAL Type: Configuration Format: AT [cmds] *Lan [cmds] Description: Selects signal response. Command Function *LA0 Ignores local analog loopback signal *LA1 DTE commanded local analog loopback LOOPBACKS Type: Configuration Format: AT [cmds] -In [cmds] Description: Enable/disable loopbacks. Command Function -I0 Interface loopbacks disabled -I1 CT141 - LAL enabled -I2 CT140 - RDL enabled -I3 CT140, CT141 enabled -I4 CT140 with inverted polarity enabled -I5 CT140 with inverted polarity, CT141 enabled MONITOR LEASED LINE Type: Configuration Format: AT [cmds] :Tn [cmds] Description: Selects time in minutes that leased line is monitored. Command Function :T0 5 minutes :T1 15 minutes :T2 30 minutes :T3 60 minutes OPTIONS Type: Configuration Format: AT [cmds] *Ron [cmds] Description: Restore/retain options. Command Function *RO0 Retains options at disconnect *RO1 Restores options at disconnect ORIGINATE/ANSWER Type: Configuration Format: AT [cmds] *ORn [cmds] Description: Selects originate of forced answer mode Command Function *OR0 Originate mode *OR1 Answer mode PASSWORD Type: Configuration Format: AT [cmds] %P [cmds] Description: Programs, displays and clears password Command Function %P=passwd Programs remote configuration password %P? Reports remote configuration password of local modem %P=(blank) Clears password RATE NEGOTIATION Type: Configuration Format: AT [cmds] *RR [cmds] Description: Sets negotiation speed. Command Function *RR0 Set negotiation speed to 2400bps. *RR1 Set negotiation speed to 4800bps. *RR2 Set negotiation speed to 7200bps. *RR3 Set negotiation speed to 9600bps *RR4 Set negotiation speed to 12.0Kbps. *RR5 Set negotiation speed to 14.4Kbps. *RR6 Set negotiation speed to 16.8Kbps. *RR7 Set negotiation speed to 19.2Kbps. *RR8 Set negotiation speed to 21.6Kbps. *RR9 Set negotiation speed to 24Kbps. *RR10 Set negotiation speed to 26.4Kbps. *RR11 Set negotiation speed to 28.8Kbps. *RR12 Set negotiation speed to 31.2Kbps. *RR13 Set negotiation speed to 33.6Kbps. REMOTE CONFIGURATION Type: Configuration Format: AT [cmds] %T [cmds] Description: %T=passwd establishes remote password configuration REMOTE LOOPBACK SIGNAL Type: Configuration Format: AT [cmds] *RDn [cmds] Description: Selects signal response. Command Function *RD0 Ignores remote loopback signal *RD1 DTE commanded remote loopback REPEAT DIAL Type: Configuration Format: AT [cmds] -Dn [cmds] Description: Repeat dial of number n up to 10 attempts. RETRAINS DIAL BACKUP Type: Configuration Format: AT [cmds] :Rn [cmds] Description: Selects number of retrains. Command Function :R0 5 retrains in 4 minutes time :R1 10 retrains in 4 minutes time :R2 15 retrains in 4 minutes time RETURN TO LEASED LINE Type: Configuration Format: AT [cmds] :Pn [cmds] Description: Enable/disable return to leased line. Command Function :P0 Return to leased line disabled :P1 Return to leased line enabled RING INDICATION Type: Configuration Format: AT [cmds] \Rn [cmds] Description: Sets ring indicator Command Function \R0 Blinks for rings and stays on for duration of call \R1 Blinks for ring and turns off when call is answered SOFTWARE VERSION Type: Configuration Format: AT [cmds] %Vn [cmds] Description: Displays software version SPEED VARIATION Type: Configuration Format: AT [cmds] %On [cmds] Description: Determines the speed variation tolerated by modem Command Function %O0 Normal speed (-2.5% to 1%) %O1 Extended speed (-2.5% to 2.3%) STORE NUMBER Type: Configuration Format: AT [cmds] *CNx,n [cmds] Range: (location) 0-20 Description: Dials number stored at location n in location x. STORED NUMBER DISPLAY Type: Configuration Format: AT [cmds] *ND [cmds] Description: Displays the nine stored telephone numbers. TALK/DATA MODE Type: Configuration Format: AT [cmds] *Dan [cmds] Description: Selects talk or data mode. Command Function *DA0 Talk mode *DA1 Data mode TRANSMIT CHANNEL SELECTION VIA INTERFACE Type: Configuration Format: AT [cmds] -Xn [cmds] Description: Enable/disable transmit channel selection via interface. Command Function -X0 Transmit channel selection via interface disabled -X1 Transmit channel selection via interface enabled V.25BIS PROTOCOL Type: Configuration Format: AT [cmds] :On [cmds] Description: Byte-oriented/bit-oriented protocol. Command Function :O0 Byte-oriented protocol :O1 Bit enabled protocol V.34 ASYMMETRIC SPEEDS Type: Configuration Format: AT [cmds] *Asn [cmds] Description: Enables/disables V.34 asymmetric speeds. Command Function *AS0 V.34 asymmetric speeds disabled *AS1 V.34 asymmetric speeds enabled V.34 ASYMMETRICAL SPEEDS Type: Configuration Format: AT [cmds] -Wn [cmds] Description: Enable/disable interface speed. Command Function -W0 Asymmetrical speeds disabled -W1 Asymmetrical speeds enabled V.34 SPEED Type: Configuration Format: AT [cmds] -Nn [cmds] Description: Selects V.34 speeds. Command Function -N0 High speeds for V.34 operation enabled -N1 All speeds for V.34 operation enabled S(STATUS) -REGISTERS BIT-MAPPED REGISTER S14 Format: AT [cmds] S14=n [cmds] Range: 0-255 Unit: Bit-mapped Description: Controls echo, result codes and display, dial mode, and answer/originate mode. Bit Value Function 0 0 DCE speed 1 DTE speed 1 0 Command echo disabled 1 Command echo enabled 2 0 Result codes enabled 1 Result codes disabled 3 0 Display result codes in numeric format 1 Display result codes in verbose format 4 0 Ignore response messages 1 Originate mode only 5 0 Tone dial enabled 1 Pulse dial enabled 6 0 Normal hang up 1 Not used 7 0 1 Answer mode enabled Originate mode enabled BIT-MAPPED REGISTER S15 Format: AT [cmds] S15=n [cmds] Unit: Bit-mapped Range: 0-255 Description: Controls transmit level, dial backup, and parity. Bit Value Function 0 0 Reserved 3,2,1 000 0dBm transmit level 001 -3dBm transmit level 010 -6dBm transmit level 011 -9dBm transmit level 100 -12dBm transmit level 101 -15dBm transmit level 110 -18dBm transmit level 111 -21dBm transmit level 5,4 00 Even asynchronous V.25bis parity 01 Space asynchronous V.25bis parity 10 Odd asynchronous V.25bis parity 11 Mark asynchronous V.25bis parity 7,6 0 Reserved BIT-MAPPED REGISTER S19 Format: AT [cmds] S19=n [cmds] Range: 0-13 Unit: Bit-mapped Description: Selects modulation type Bit Value Function 0-3 0000 Automode 0001 V.21 0010 B103 0101 V.22 1000 B212 1011 V.32bis 1100 V.34 4-7 0 Reserved BIT-MAPPED REGISTER S22 Format AT [cmds] S22=n [cmds] Range: 0-255 Unit: Bit-mapped Description: Controls speaker volume and controls, limits results codes, and pulse dial make/break ratio. Bit Value Function 1, 0 00 Minimum volume 01 Low level volume 10 Medium level volume 11 High level volume 3, 2 00 Speaker off 01 Speaker on until 2100Hz received 10 Speaker always on 11 Speaker on during handshake 6 - 4 000 Basic result codes only enabled 100 Basic and connection speed result codes enabled 101 Basic and connection speed result codes and dialtone detection enabled 110 All result codes except dialtone detection 111 enabled All result codes enabled 7 0 39/61ms at 10pps (North America) 1 33/67ms at 10pps (Europe) BIT-MAPPED REGISTER S23 Format AT [cmds] S23=n [cmds] Range: 0-255 Unit: Bit-mapped Description: Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone. Bit Value Function 0 0 Remote digital loopback denied 1 Remote digital loopback allowed 1 0 V.25 VAL enabled 1 V.25 VAL disabled 2 0 Echo control while online enabled 1 Echo control while online disabled 3 0 CTS does not follow DCD 1 CTS follows DCD 5, 4 00 Parity even 01 Space Parity 10 Parity odd 11 Mark or No Parity 7, 6 00 Guard tone disabled 01 Guard tone 550Hz enabled 10 Guard tone 1800Hz enabled BIT-MAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Unit: Bit-mapped Description: Selects line type, clock source, and dial up. Bit Value Function 1, 0 00 Reserved 3,2 00 Switched line 01 2-wire leased line 11 4-wire leased line 5, 4 00 Local modem generates transmit clock source 01 Local DTE generates transmit clock source 10 Remote DCE/DTE generates transmit clock source 6 0 Not used 7 0 Dial on manual connection disabled 1 Dial on manual connection enabled BIT-MAPPED REGISTER S29 Format AT [cmds] S29=n [cmds] Range: 0-128 Unit: Bit-mapped Description: Selects DTE speed. Bit Value Function 0-4 00000 DTE speed disabled 00100 1200bps 00101 2400bps 00110 4800bps 00111 7200bps 01000 9600bps 01001 12.0Kbps 01010 14.4Kbps 01011 16.8Kbps 01100 19.2Kbps 01101 21.6Kbps 01110 24.0Kbps 01111 26.4Kbps 10000 28.8Kbps 10001 31.2Kbps 10010 33.6Kbps 10011 38.4Kbps 10100 57.6Kbps 10101 115.2Kbps 10110 230.4Kbps 10111 460.8Kbps 5-7 0 Reserved BIT-MAPPED REGISTER S80 Format AT [cmds] S80=n [cmds] Unit: Bit-mapped Description: Selects speed variation tolerance, and asynchronous character size. Bit Value Function 01,2 0 Reserved 3 0 Normal speed (-2.5% - 1%) 1 Extended speed (-2.5% - 2.3%) 4 0 Return to leased line disabled 1 Return to leased line enabled 5 0 Reserved 7,6 00 Asynchronous character 8bits 01 Asynchronous character 9bits 10 Asynchronous character 10bits 11 Asynchronous character 11bits BIT-MAPPED REGISTER S81 Format AT [cmds] S81=n [cmds] Unit: Bit-mapped Range: 0-255 Description: Selects block size, buffer mode, break treatment, V.42 detect. Bit Value Function 1,0 00 Block size 64 characters 01 Block size 128 characters 10 Block size 192 characters 11 Block size 256 characters 2,3 00 Normal mode buffer disabled 01 Buffer for 200 characters 10 Break fallback enabled 3 0 Normal speed (-2.5% - 1%) 1 Extended speed (-2.5% - 2.3%) 6,5,4 001 Send break treatment after buffer is empty 011 Send break treatment immediately 101 Send break sequence with data 7,6 00 V.42 detect phase disabled 01 V.42 detect phase disabled BIT-MAPPED REGISTER S82 Format AT [cmds] S82=n [cmds] Unit: Bit-mapped Range: 0-255 Description: Selects flow control, connect message, pass through, and data compression. Bit Value Function 2,1,0 000 Flow control disabled 001 Bilateral XON/XOFF flow control 010 Unilateral CTS 011 Bilateral RTS/CTS 100 Bilateral XON/XOFF 3 0 No protocol 1 Indicate MNP or LAPM protocol 4 0 Pass through disabled 1 Pass through enabled 6,5 00 Data compression disabled 01 TX and RX data compression enabled 10 TX data compression enabled 11 Rx data compression enabled 7 0 AKA enabled 1 AKA disabled BIT-MAPPED REGISTER S83 Format AT [cmds] S83=n [cmds] Unit: Bit-mapped Description: Selects DCD detection, dialup disconnect, digital loopback . Bit Value Function 0,1 00 Reserved 2 0 DCD at -43dB 1 DCD at -33dB 4,3 00 Dialup line disconnect disabled 01 Dialup line disconnect by carrier loss 10 Dialup line disconnect by data loss 11 Dialup line disconnect by carrier and data loss 7,6,5 000 Digital interface loopbacks disabled 001 CT141 - LAL enabled 010 CT140 - RDL enabled 011 CT140 and CT141 enabled 100 CT140/enabled 101 CT140/ and CT141 enabled BIT-MAPPED REGISTER S84 Format AT [cmds] S84=n [cmds] Unit: Bit-mapped Description: Selects simulated carrier, transmit level, channel interface . Bit Value Function 0 0 Simulated carrier disabled 1 Simulated carrier enabled 2,1 0 reserved 5,4,3 000 0dBm transmit level : : : : 111 -21dBm transmit level 6 0 Flow control between modems enabled 1 Flow control between modems disabled 7 0 Interface channel select disabled (CT126) 1 Interface channel select enabled (CT126) BIT-MAPPED REGISTER S85 Format AT [cmds] S85=n [cmds] Unit: Bit-mapped Range: 0-255 Description: Selects V.25, ring indicator, busy mode. Bit Value Function 0 0 V.25 in ASCII 1 V.25 in EBCDIC 1 0 Blinks while dialing and stays on 1 Blinks while dialing and turns off when answered 2 0 Reserved 3 0 V.8 disabled for non V.34 answer 1 V.8 enabled for V.34 answer 4 0 Interface speed (CT111) disabled 1 Interface speed (CT111) enabled 5 0 CT108/2 1 CT108/3 6 0 Fast disconnect by DCD loss (5 seconds) 1 Slow disconnect by DCD loss (45 seconds) 7 0 Busy mode disabled 1 Busy mode enabled BIT-MAPPED REGISTER S86 Format AT [cmds] S86=n [cmds] Unit: Bit-mapped Description: Sets remote disconnect, rate adaptation, auto retrain, small block, character length and stop bits. Bit Value Function 0 0 Remote disconnect disabled 1 Cleardown 1 0 Auto-redial disabled 1 Auto-redial enabled 2,3 00 Automatic rate adaptation disabled 01 Automatic rate adaptation enabled with low BER 10 Automatic rate adaptation enabled with medium BER 11 Automatic rate adaptation enabled with high BER 4 0 Auto retrain disabled 1 Auto retrain enabled 5 0 Small block off 1 Small block on 6 0 Character length 7 bits 1 Character length 8 bits 7 0 1 stop bit 1 2 stop bits BIT-MAPPED REGISTER S87 Format AT [cmds] S87=n [cmds] Unit: Bit-mapped Range: 0-255 Description: Selects protocol and command state. Bit Value Function 2,1,0 000 Normal mode 001 Direct mode 010 MNP mode 011 MNP or normal mode 100 LAPM mode 101 LAPM or normal mode 110 LAPM or MNP mode 111 LAPM, MNP, or normal mode 3 0 DTR dial disabled 1 DTR dial enabled 5,4 00 Display negotiation disabled 01 Display negotiation enabled 10 Displays at DCE link rate 6 0 AT command state 1 V.25bis command state 7 0 Command state disable 1 Command state enable BIT-MAPPED REGISTER S90- Format AT [cmds] S90=n [cmds] Unit: Bit-mapped Range: 8-255 Description: Enables modem speed. Bit Value Function 2,1,0 0 Reserved 3 1 1200bps 4 1 2400bps 5 1 4800bps 6 1 7200bps 7 1 9600bps BIT-MAPPED REGISTER S91- Format AT [cmds] S91=n [cmds] Unit: Bit-mapped Range: 0-255 Description: Enables modem speed. Bit Value Function 0 1 12.0Kbps 1 1 14.4Kbps 2 1 16.8Kbps 3 1 19.2Kbps 4 1 21.6Kbps 5 1 24.0Kbps 6 1 26.4Kbps 7 1 28.8Kbps BIT-MAPPED REGISTER S92- Format AT [cmds] S91=n [cmds] Unit: Bit-mapped Description: Enables modem speed. Bit Value Function 0 1 31.2Kbps 1 1 33.6Kbps 2-7 0 Reserved BIT-MAPPED REGISTER S94- Format AT [cmds] S94=n [cmds] Unit: Bit-mapped Range: 0-255 Description: Sets network management system parameters. Bit Value Function 4-0 00000 Address line 0 00001 Address line 1 : : : : 11110 Address line 30 11111 Address line 31 6,5 00 Bus speed at 1200bps 01 Bus speed at 2400bps 10 Bus speed at 4800bps 11 Bus speed at 9600bps 7 0 NMS capacity disabled 1 NMS capacity enabled BIT-MAPPED REGISTER S95- Format AT [cmds] S95=n [cmds] Unit: Bit-mapped Description: Selects callback, caller ID, auto baud and number code functions. Bit Value Function 0,1,2 0 Reserved 3 0 Call back disabled 1 Call back enabled 4 0 Caller ID detection disabled 1 Caller ID detection enabled 5 0 L1 disconnect L2 off 1 L1 disconnect L2 on 6 0 Auto baud disabled 1 Auto baud enabled 7 0 Standard (15 - 4800bps, 18 - 9600bps) 1 Alternative (15 - 4800bps, 18 - 9600bps) BIT-MAPPED REGISTER S96- Format AT [cmds] S96=n [cmds] Unit: Bit-mapped Description: Sets speed options, storing options, line transmission level. Bit Value Function 0 0 V.34 only for high speeds 1 V.34 for all speeds 1 0 Call waiting off 1 Call waiting on 2 0 Asymmetrical speed option disabled 1 Asymmetrical speed option enabled 3 0 Store option when disconnect 1 Reset option when disconnect 5,4 00 Switched line TX level at -1dB 01 Switched line TX level at -2dB 10 Switched line TX level at -3dB 7 00 Leased line TX level at -1dB 01 Leased line TX level at -2dB 10 Leased line TX level at -3dB BREAK LENGTH Type: Register Format: AT [cmds] S30=n [cmds] Range: 0-255 Unit: 20ms Description: Determines the break length sent to the DTE CALLBACK DELAY Type: Register Format: AT [cmds] S32=n [cmds] Range: 0-255 Unit: Unidentified Description: Sets the callback delay CALLBACK RETRIES Type: Register Format: AT [cmds] S33=n [cmds] Range: 0-255 Unit: ASCII Description: Sets the number of callback retries DISCONNECT BUFFER DELAY Type: Register Format AT [cmds] S39=n [cmds] 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. A value of 255 allows an indefinite amount of time to send buffered data prior to hanging-up. FLOW CONTROL CHARACTER - XOFF FROM DTE Type: Register Format: AT [cmds] S37=n [cmds] Range: 0-127 Unit: ASCII Description: Sets the character used to represent XOFF FLOW CONTROL CHARACTER - XOFF TO DTE Type: Register Format: AT [cmds] S35=n [cmds] Range: 0-127 Unit: ASCII Description: Sets the character used to represent XOFF to DTE FLOW CONTROL CHARACTER - XON FROM DTE Type: Register Format: AT [cmds] S36=n [cmds] Range: 0-127 Unit: ASCII Description: Sets the character used to represent XON to DTE FLOW CONTROL CHARACTER - XON TO DTE Type: Register Format: AT [cmds] S34=n [cmds] Range: 0-127 Unit: ASCII Description: Sets the character used to represent XON to DTE INACTIVITY TIMER Type: Register Format AT [cmds] S38=n [cmds] Range: 0-255 Unit: 10 seconds Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process. Note: S38=0 disables the timer and allows indefinite inactivity. LOOKBACK Type: Register Format AT [cmds] S13=n [cmds] Range: 0-255 Unit: 1 minute Description: Selects the amount of time modem will remain in dial backup mode before retrying leased line mode Note: S13=0 disables automatic lookback to leased line. NORMAL MODE FALLBACK Type: Register Format AT [cmds] S88=n [cmds] Range: 0-127 Unit: ANCII Description: Sets fallback character for normal mode. OPERATING MODES Type: Register Format: AT [cmds] S21=n [cmds] Unit: Bit-mapped Description: Controls modem operating mode, disconnect Bit Value Function 6,0 00 DSR always on 01 DSR on when modem is online 10 DSR off 5 seconds after disconnect 11 DSR follows off-hook 5,1 00 DCD always on 01 DCD on when carrier is present 10 DCD on except 5 second after disconnect 11 DCD follows remote RTS 2 0 CTS follows RTS by S26 delay 1 CTS always on 4,3 00 Ignores DTR 01 Assumes command mode when DTR turns off 10 Hangs up when DTR turns off 11 Resets when DTR turns off 7 0 Long space disconnect disabled 1 Long space disconnect enabled TIME ABSENCE DISCONNECTION Type: Register Format AT [cmds] S97=n [cmds] Range: 0-255 Unit: Unidentified Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process. TIMEOUT PASSWORD Type: Register Format: AT [cmds] S31=n [cmds] Range: 0-255 Unit: ASCII Description: Sets the callback password