MICROCOM, INC. TRAVELPORTE FAST Card Type Modem(synchronous/asynchronous) Chip Set Unidentified Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus External Fax Class Unidentified Data Modulation Protocol Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, v.FAST Fax Modulation Protocol Unidentified Error Correction/Compression MNP5, MNP10, V.42, V.42bis [Image] CONNECTIONS Function Label Function Label Line in CN1 25-Pin parallel port CN4 Line out CN2 DC power CN5 9-Pin mini-DIN connector CN3 Power switch SW1 DIAGNOSTIC LED(S) LED Color Status Condition PWR Green On Power is on PWR Green Off Power is off DTR Red On DTR signal is high DTR Red Off DTR signal is low OH Red On Modem is off hook OH Red Off Modem is on hook DCD Green On Carrier signal detected DCD Green Off Carrier signal not detected EC Red On Modem is in error correction mode EC Red Off Modem is not in error correction mode DIAGNOSTIC LED(S) POWER-UP DIAGNOSTIC TESTING CD EC Condition Off On Test of RAM failed On Off Component failure On On Test of CPU failed 3 Blinks Off All tests passed DIAGNOSTIC LED(S) SPEED (bps) LED Status 1 2 3 4 5 6 7 Blink Blinks Blinks Blinks Blinks Blinks Blinks V.22bis Blinking 1200 2400 V.32bis Blinking 4800 7200 9600 12000 144000 V.fast Blinking 14400 16800 19200 21600 24000 26400 28800 Proprietary AT Command Set Auto-answer auto-logon sequence select Type: Configuration Format: AT [cmds] $An [cmds] Description: Sets whether auto-answer auto-logon sequence are used Command Function $A0 Auto-answer auto-logon disabled $Ax Auto-answer auto-logon enabled for the sequence x, where x has a range of 1-9 and the sequence must first be set using the $L command automatic shut-down auto saving Type: Configuration Format: AT [cmds] )Zn [cmds] Description: Sets whether the modem saves configurations before it automatically shuts down Command Function )Z0 Auto saving disabled )Z1 Auto saving enabled (*W function enacted 5 seconds prior to shut-down) BIT-MAPPED REGISTER S22 Format AT [cmds] S22=n [cmds] Default: Unidentified Range: 0-255 Unit: Bit-mapped Description: Controls speaker volume and controls, results codes, and pulse dial make/break ratio. Bit Value Function 1, 0 Not used 3, 2 00 Speaker off 01 Speaker off on carrier 10 Speaker always on 11 Speaker on during handshake 6 - 4 000 Busy and dial tone detection disabled; result codes 0 - 4 enabled 100 Busy and dial tone detection disabled; result 101 codes 0 - 5 & 10 enabled 110 Busy tone detection disabled, dial tone detection enabled; result codes 0 - 6 & 10 111 enabled Busy tone detection enabled, dial tone detection disabled; result codes 0 - 5, 7 & 10 enabled Busy and dial tone detection enabled; result codes 0 - 7 & 10 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] Default: Unidentified Range: 0-189 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 3 - 1 000 Sets serial port speed to 0-300bps 001 Sets serial port speed to 600bps 010 Sets serial port speed to 1200bps 011 Sets serial port speed to 2400bps 100 Sets serial port speed to 4800bps 101 Sets serial port speed to 9600bps 110 Sets serial port speed to 19200bps 111 Sets serial port speed to 38400, 57600 and 115200 bps 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 disabled 10 Guard tone 1800Hz enabled 11 Not used BIT-MAPPED REGISTER :T15 Format AT [cmds] :T15=n [cmds] Default: 128 Range: 0-193 Unit: Bit-mapped Description: Sets the V.24 control Bit Value Function 0 0 CTS not effected by direct mode retrains 1 CTS lowered by direct mode retrains 5- 1 Not used 6 0 DCD enabled 1 DCD enabled after carrier signal detected 7 0 V.32 answer tone phase reversals disabled 1 V.32 answer tone phase reversals enabled BIT-MAPPED REGISTER :T19 Format AT [cmds] :T19=n [cmds] Default: 1 Range: 0-1 Unit: Bit-mapped Description: Sets the link control for MNP Bit Value Function 0 0 Modem will not disconnect a non-MNP10 1200 bps connection if it does not receive MNP link 1 activity from the remote modem Modem will disconnect a non-MNP10 1200 bps connection if it does not receive MNP link activity from the remote modem for a period of 2 minutes BIT-MAPPED REGISTER :T23 Format AT [cmds] :T23=n [cmds] Default: Unidentified Range: Unidentified Unit: Bit-mapped Description: Controls the negotiation of rate Bit Value Function 3- 0 Not used 4 0 Modem examines line quality and then sets speed during a V.32 connection 1 Disabled 7- 5 Not used BIT-MAPPED REGISTER :T26 Format AT [cmds] :T26=n [cmds] Default: 0 Range: 0-255 Unit: Bit-mapped Description: Used to speed up cellular connection time Bit Value Function 0 0 2 second billing delay enabled 1 2 second billing delay disabled 1 0 V.32 mode answer tone length normal 1 V.32 mode answer tone length shortened BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Description: Configures action of break signal Command Break from Modem Break Break DTE receives \Bn sent by received from form local local remote modem DTE modem \K0 Online Break sent Send Buffers command mode to remote break to cleared, enabled, modem and remote break sent to send no buffered modem, DTE break to cleared modem remote modem set to command mode \K1 Break sent Break sent Send Buffers to remote to remote break to cleared, modem and modem and remote break sent to buffers buffered modem DTE cleared cleared \K2 Online Send break Send Break sent command mode to remote break to immediately enabled, modem remote to DTE send no immediately modem, break to modem remote modem set to command mode \K3 Send break Send break Send Break sent to remote to remote break to immediately modem modem remote to DTE immediately immediately modem \K4 Online Send break Send Break sent command mode with break to with received enabled, transmitted remote data to the send no data modem, DTE break to modem remote modem set to command mode \K5 Send break Send break Send Break sent with with break to with received transmitted transmitted remote data to the data data modem DTE Buffer disconnect delay Type: Configuration Format AT [cmds] )%Dn [cmds] Default: 0 Range: 0-255 Unit: 1 sec Description: Sets the delay within which the modem tries to process data within it’s transmit receive buffer, before it disconnects CLEAR TO SEND TIME DELAY Type: Configuration Format AT [cmds] :Vn [cmds] Default: 0 Range: 0-255 Unit: .0125 second Description: Sets the time the modem waits before engaging CTS (Clear To Send) 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 ITU-T V.21 and V.22 at 300 or 1200bps B1 Bell 103 and 212A at 300 or 1200bps connect message TIMER Type: Register Format AT [cmds] :T14=n [cmds] Default: 0 Range: 0-255 Unit: .1 sec Description: The period of time that the modem waits before or after a connect message to force CTS, DSR and DCD to high Connect state Type: Immediate Format: AT [cmds] On [cmds] Description: Puts the modem into a connect state Command Function O Begin connect state O1 Begin connect state and retrain if connected at 2400bps or higher Connection training TIMER for v.32 and v.32bis Type: Register Format AT [cmds] :T17=n [cmds] Default: 0 Range: 0, 5-28 Unit: Unidentified Description: The period of time that the modem uses for exchanging the training sequences while trying to establish a V.32 or a V.32bis connection CTS Activation TIMER Type: Register Format AT [cmds] :T16=n [cmds] Default: 0 Range: 0-255 Unit: 12.5 sec Description: When DCD and or DSR have been turned on, this is the amount of time before CTS is turned on cts, dsr and dcd connection control Type: Configuration Format: AT [cmds] @Cn [cmds] Description: Sets when CTS,DSR and DCD go on Command Function @C0 CTS,DSR and DCD forced high after connect message is sent @C1 CTS,DSR and DCD forced high before connect message is sent data carrier detect Type: Configuration Format: AT [cmds] &Cn [cmds] Description: Selects data carrier detect mode Command Function &C0 DCD forced high &C1 DCD follows the state of the remote system, with DCD forced high after connect message &C2 DCD forced high except during at disconnect DATA SEND READY TIME DELAY Type: Configuration Format AT [cmds] :Xn [cmds] Default: 0 Range: 0-255 Unit: .0125 second Description: Sets the time the modem waits before engaging data send ready DCD delay Type: Configuration Format AT [cmds] :Un [cmds] Range: 0-255 Unit; .0125 sec Description: Sets the delay before the modem switches DCD on DCD turn on delay TIMER Type: Register Format AT [cmds] :T6=n [cmds] Default: 200 Range: 0-255 Unit: .001sec Description: In normal mode V.23 half duplex connections, this is the period of time that the modem waits after the carrier has been turned on, before it begins to look for data 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! Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook. 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. DA Link negotiation performed at 4800 bps DJ Link negotiation performed at 1200 bps DK Cellular connection DNx Used as the last character in a dial string, if connection fails then a connection is attempted with the stored number x, which has a range of 1-9 and is previously stored using the &Z command or the \P command DO modem is set to work with a remote (cell-side) cellular phone DS Dials the first number stored using the &Z command D+x Dials, connects, then initiates the logon sequence x DM Override set operating mode and dial in LAPM mode DQ Override set operating mode and dial in LAPM mode with fallback to normal mode DU Override set operating mode and dial in direct mode DV Override set operating mode and dial in LAPM mode with fallback to MNP DX Override set operating mode and dial in auto-reliable mode DY Override set operating mode and dial in MNP reliable mode DZ Override set operating mode and dial in normal mode Dial access security Type: Configuration Format: AT [cmds] $Gn [cmds] Description: Sets dial access security during logon Command Function $G0 Dial access security disabled $G1 Dial access security enabled dial access security database display Type: Immediate Format: AT [cmds] $In [cmds] Description: Displays the dial access security database Display contents of registers Type: Immediate Format: AT [cmds] %Rn [cmds] Description: Display content of registers Command Function %R0 Displays contents of all S-registers %R1 Displays content of all :Tn Commands DISPLAY TELEPHONE NUMBERS Type: Immediate Format: AT [cmds] \Fn [cmds] Description: Displays numbers stored in the directory DSR AND CTS CONTROL FOR SERIAL PORT Type: Configuration Format: AT [cmds] \Dn [cmds] Description: Controls data send ready and clear to send Command Function \D0 DSR and CTS forced high \D1 DSR and CTS follow DCD, If &C1 is set then DSR follows off-hook \D2 DSR and CTS follow DCD \D3 DSR set to ITU-T recommendations, CTS forced high \D4 DSR and CTS set to ITU-T recommendations DSR disconnect TIMER Type: Register Format AT [cmds] :T22=n [cmds] Default: 34 Range: 0-255 Unit: .0125 sec Description: The period of time after DCD and or CTS are dropped until DSR is dropped at disconnect Dumb Mode Type: Configuration Format: AT [cmds] -Hn [cmds] Description: Sets the modem to ignore commands (Dumb mode) Command Function -H1 Dumb mode disabled -H2 Dumb mode enabled Edit dial accesss security database Type: Configuration Format AT [cmds] )$Hn [cmds] Range: 1-9 Description: Edits the dial access security database position n Edit logon sequence Type: Configuration Format AT [cmds] )$Ln [cmds] Range: 1-9 Description: Edits the logon sequence n EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] \Vn [cmds] Description: Selects extended result codes Command Function \V0 Extended result codes disabled \V1 Extended result codes enabled \V2 Extended error correction protocol result codes enabled \V3 /REL added to extended error correction result codes, displays Hayes short result codes \V4 Extended error correction protocol result codes enabled Fallback speed Type: Configuration Format: AT [cmds] -Qn [cmds] Description: Sets the type of fallback used by the modem Command Function -Q0 V.fast, V.32bis, or V.32 MNP reliable connection fallback to a MNP reliable 2400bps or 1200bps connection disabled -Q1 V.fast, V.32bis, or V.32 MNP reliable connection fallback to a MNP reliable 2400bps connection enabled -Q2 V.fast, V.32bis, or V.32 MNP reliable connection fallback to a MNP reliable 2400bps or 1200bps connection enabled False answer disconnect TIMER Type: Register Format AT [cmds] :T7=n [cmds] Default: 60 Range: 0-255 Unit: 1 sec Description: In normal mode, when V.23 half duplex connections occur after fallback, this is the period of time that the modem waits before disconnecting after receiving no data FIRMWARE VERSION display Type: Immediate Format: AT [cmds] %Vn [cmds] Description: Displays the firmware main code version for the modem FLOW CONTROL Type: Configuration Format: AT [cmds] \Gn [cmds] Description: Selects modem port flow control Command Function \G0 Flow control disabled \G1 XON/XOFF flow control enabled \G2 XON/XOFF flow control enabled uni-directionally Hewlett Packard EMULATION Type: Configuration Format: AT [cmds] \Hn [cmds] Description: Configures the modem to emulate Hewlett Packard ENQ/ACK Command Function \H0 HP ENQ/ACK disabled \H1 HP ENQ/ACK enabled within a MNP reliable link/terminal emulated \H2 HP ENQ/ACK enabled within a MNP reliable link/host emulated INACTIVITY TIMER Type: Configuration Format: AT [cmds] \Tn [cmds] Default: 0 Range: 0-90 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects. Inactivity timer (serial port) Type: Configuration Format AT [cmds] )Qn [cmds] Default: 0 Range: 0-255 Unit: 1 minute Description: Sets the time serial port must be inactive for the modem to automatically shut down Kermit and uucp spoofing Type: Configuration Format: AT [cmds] :Kn [cmds] Description: Sets the type of Kermit and UUCP protocol used by the modem Command Function :K0 Kermit and UUCP spoofing disabled (asynchronous protocols) :K1 Kermit spoofing enabled (asynchronous protocols) :K2 UUCP spoofing enabled (asynchronous protocols) kermit mark character Type: Configuration Format AT [cmds] :Qn [cmds] Default: 1 Range: 0-31 Unit: ASCII Description: Sets the mark character used by Kermit Line turnaround TIMER Type: Register Format AT [cmds] :T4=n [cmds] Default: 20 Range: 0-255 Unit: .0125sec Description: In normal mode V.23 half duplex connections, after the local modem turns carrier off, this is the amount of time the local modem waits for the remote modem to respond, before it turns the carrier on again and resumes the transmission of data. Logon sequence password Type: Immediate Format: AT [cmds] $P [cmds] Description: Changes the password used to alter the logon sequence LOW Battery WARNING Type: Configuration Format: AT [cmds] )Vn [cmds] Description: Sets the type of notification that should occur upon low battery Command Function )V0 Disabled )V1 3 Bell characters )V2 3 Bell characters and LOW BATTERY warning manual dialing Type: Configuration Format: AT [cmds] :Dn [cmds] Description: Sets if the modem goes off-hook in originate mode Command Function :D0 If DTR is raised then modem goes off-hook :D1 If DTR is raised then modem goes off-hook in originate mode, &D must be set :D2 If DTR is raised then modem goes off-hook in originate mode and dials the first telephone number that is stored, &D must be set Mnp class connection Messages Type: Configuration Format: AT [cmds] -Mn [cmds] Description: Sets whether or not a class connection message is shown Command Function -M0 MNP class connection message disabled -M1 MNP class connection message enabled Modem Port Rate Type: Configuration Format: AT [cmds] %Bn [cmds] Description: Sets the bits per second rate for the modem port Command Function %B75 75bps %B300 300bps %B600 600bps %B1200 1200bps %B2400 2400bps %B4800 4800bps %B9600 9600bps %B19200 19200bps %B38400 38400bps %B57600 57600bps %B115200 115200bps MODEM POrT SPEED CONFIGURATION Type: Configuration Format: AT [cmds] %Gn [cmds] Description: Sets how modem port speed is configured Command Function %G0 Modem port speed is determined by serial port %G1 Modem port speed is determined by %B command ONLINE STATUS Type: Immediate Format: AT [cmds] \Sn [cmds] Description: Lists modem commands with their current settings, displays connection type, elapsed time, and last number dialed Note: The information is displayed on several screens, hit any key to scroll down, hit x to cancel Packet size (parallel port) Type: Register Format AT [cmds] :T29=n [cmds] Default: 32 Range: 0-63 Unit: 1 Character Description: The maximum number of characters sent in a data packet from computer to modem or from modem to computer Note: If the value is set to 0 then the modem selects the best packet size Parity check Type: Configurarion Format: AT [cmds] -Pn [cmds] Description: Sets how parity is checked Command Function -P0 Parity for special characters ignored -P1 Process special characters when their parity matches serial port parity -P2 Process special characters when their parity matches serial port parity, modem port flow characters are also recognized Power level adjustment (cellular connections) Type: Configuration Format: AT [cmds] )Mn [cmds] Description: Adjusts the power level used by the modem Command Function )M0 Auto power adjustment (cellular and non cellular) )M1 Power level adjustment forced (cellular) PULSE DIAL SETTING Type: Configuration Format: AT [cmds] %Wn [cmds] Description: Sets the format for pulse dialing, where x is the digit being dialed Command Function %W0 X pulses dialed %W1 X+1 pulse dialed %W2 10- x pulses dialed Read :t (configuration) Register Type: Immediate Format AT [cmds] ):Tn? [cmds] Description: Displays the value of the :T register n Re-Dial Type: Immediate Format: AT [cmds] -Dn [cmds] Description: Dials or re-dials a number in several different formats Command Function -D Dials a number up to 98 characters long -D/x Dials the telephone stored in the directory location x using the \P command -DL Dials last number dialed -DS Dials first entry stored in the directory remote access Type: Configuration Format: AT [cmds] *En [cmds] Description: Enables the use of remote access Command Function *E0 Remote access disabled *E1 Remote access enabled Remote access Attention CHARACTER Type: Configuration Format AT [cmds] *Sn [cmds] Default: 42, <*> Range: 0-126 Unit: ASCII Description: Sets the attention character used to request remote access remote access Configuration RECOVERY Type: Immediate Format: AT [cmds] *Q[cmds] Description: Ignores changes made but not saved in level 1 remote access sessions remote access configuration update Type: Immediate Format: AT [cmds] *U [cmds] Description: Saves changes made to the configurations during a level 1 remote access call Remote Access IDENTIFIER Type: Configuration Format: AT [cmds] *I [cmds] Description: Sets the identifier used in remote access sessions remote access level change - down Type: Immediate Format: AT [cmds] *X [cmds] Description: Sets remote access down one level Note: If remote access is at level 0 then, the remote access session ends and the originating modem is set to connect state Remote access level change - up Type: Immediate Format: AT [cmds] *M [cmds] Description: Requests to move up to level 1 from level 0 in a remote access session remote access password Type: Immediate Format: AT [cmds] *Pn [cmds] Description: Sets password for remote access Command Function *P0 Sets password for level 0 remote access *P1 Sets password for level 1 remote access remote access request Type: immediate Format: AT [cmds] *A [cmds] Description: Requests a remote access Remote access security Type: Configuration Format: AT [cmds] *Rn [cmds] Description: Turns on remote access security Note: All passwords must be set before enabling Remote Access Security Command Function *R0 Remote access security disabled *R1 Remote access security enabled 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 for answer mode disabled Security database clear Type: Immediate Format: AT [cmds] $Jn [cmds] Description: Clears various security and phone number databases Command Function $J0 Dial access security database cleared and $L1-$L5 restored to default $J1 Dial access security database cleared, $L1-$L5 restored to default, connection security password database cleared, stored telephone numbers cleared and last number dialed cleared. SECURITY PASSWORD Type: Configuration Format AT [cmds] )%In [cmds] Default: No password set, password connection security disabled Description: Sets a new password for password connection security serial port parity Type: Configuration Format: AT [cmds] -On [cmds] Description: Changes the parity settings for the serial port Command Function -O0 7 data bits/odd parity -O1 7 data bits/even parity -O2 7 data bits/mark parity -O3 7 data bits/space parity -O4 8 data bits/no parity Serial port rate Type: Configuration Format: AT [cmds] $Bn [cmds] Description: Sets the rate of the serial port in bits per second Command Function $B775 775 bps $B300 300 bps $B600 600 bps $B1200 1200 bps $B2400 2400 bps $B4800 4800 bps $B9600 9600 bps $B19200 19200 bps $B38400 38400 bps $B57600 57600 bps $B115200 115200 bps SERIAL PORT RING INDICATION Type: Configuration Format: AT [cmds] \Rn [cmds] Description: Sets preferences for the ring indicator signal Command Function \R0 Signal on during call \R1 Signal is turned off when call is answered serial port speed Type: Configuration Format: AT [cmds] %Un [cmds] Description: Sets the serial port speed change type Command Function %U0 Serial port speed can be changed to any other speed %U1 Keep current port speed %U2 Serial port speed can be changed from any other speed Type: Configuration Format: AT [cmds] )Un [cmds] Description: Sets the type of notification that should occur 20 seconds before shut down Command Function )U0 Disabled )U1 3 Bell characters )U2 3 Bell characters and SHUT DOWN Speed Matching Type: Configuration Format: AT [cmds] %Ln [cmds] Description: Sets the type of speed matching used Command Function %L0 Partial speed matching enabled %L1 Speed matching enabled %L2 Speed matching disabled %L3 ITU-T automode enabled STORE CONFIGURATION (COMPLETE) Type: Immediate Format: AT [cmds] *Wn [cmds] Description: Sets user configurations according to active commands and registers Note: Unlike the &W command, this one also stores restricted S-registers Command Function *W0 Stores active commands and registers in configuration 0 *W1 Stores active commands and registers in configuration 1 Store telephone number Type: Immediate Format: AT [cmds] \Pn [cmds] Description: Stores the phone number n of up to 39 digits TRANSMISSION LEVEL - CELLULAR Type: Configuration Format: AT [cmds] @Mn [cmds] Description: Sets the signal level for transmission while in cellular mode Command Function @M0 -26 dBm @M1 -30 dBm @M2-@M10 -10 dBm @Mx After @M10 the level becomes variable and is equal to -x dBm, x has a range of 10 - 35 View mode (logon) Type: Configuration Format: AT [cmds] $Vn [cmds] Description: Sets if data is passed through to from remote computer to local computer, durin a logon sequence Command Function $V0 View mode disabled $V1 View mode enabled V.21 and v.23 answer tone TIMER Type: Register Format AT [cmds] :T3=n [cmds] Default: 3 Range: 0-33 Unit: .1 sec Description: If the answering modem is set to V.21 or V.23 then :T3 is period of time that the V.25 answer tone is emitted If the originating modem is set to V.21 or V.23 then :T3 is period of time that the modem waits after it receives tone and proceeds with connection V.21 connection attempt TIMER Type: Register Format AT [cmds] :T2=n [cmds] Default: 0 Range: 0-255 Unit: .1 sec Description: Time that the modem attempts a V.21 connection, before establishing a V.23 half duplex connection V.23 split speed or a V.23 connection attempt TIMER Type: Register Format AT [cmds] :T1=n [cmds] Default: 30 Range: 0-255 Unit: .1 sec Description: Time that the modem attempts a V.23 split speed connection, before establishing a V.21 or a V.23 half duplex connection V.23 equalizer settings Type: Configuration Format: AT [cmds] %On [cmds] Description: Sets V.23 equalizer settings for half-duplex mode Command Function %O0 Equalizers disabled in V.23 half-duplex mode %O1 Equalizers enabled in V.23 half-duplex mode v.23 intercharacter timer Type: Register Format AT [cmds] :T5=n [cmds] Default: 7 Range: 0-255 Unit: .0125sec Description: In normal mode V.23 half duplex connections, this is the period of time that the modem waits before sending the last data character held within the transmit buffer and turning the carrier off V.32, V.22bis or a V.22 connection attempt TIMER Type: Register Format AT [cmds] :T0=n [cmds] Default: 40 Range: 0-255 Unit: .1 sec Description: Time that the modem attempts a V.32, V.22bis or V.22 connection, before establishing a V.23 split speed or a V.21 connection V.fast connection speed Type: Register Format: AT [cmds] :T42=n [cmds] Description: Speed setting for V.fast connection Command Function :T42=0 Standard V.fast connection speed :T42=1 Highest V.fast connection speed (2 speeds faster than the standard) :T42=2 Higher V.fast connection speed (1 speed faster than the standard) :T42=3 Standard V.fast connection speed :T42=4 Lower V.fast connection speed (1 speed slower than the standard) :T42=5 Lowest V.fast connection speed (2 speed slower than the standard)