SocketModem™ MT5634SMI V.34 & V.
Copyright and Technical Support SocketModem Reference Guide Serial: MT5634SMI-34, MT5634SMI-92 Parallel: MT5634SMI-P-92 Medical Device: MT5634SMI-HV-92, MT5634SMI-P-HV-92 Industrial Temperature: MT5634SMI-ITP-92, MT5634SMI-P-ITP-92 PN S000263C, Version C Copyright This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All rights reserved. Copyright © 2003-4, by Multi-Tech Systems, Inc. Multi-Tech Systems, Inc.
Table of Contents Contents Chapter 1 – AT Commands, S-Registers and Result Codes .................................................................. 5 Introduction ................................................................................................................................................ 5 AT Command Summary ............................................................................................................................ 6 AT Commands ...........................................
Table of Contents T.30 Phase B Negotiation Responses ................................................................................................ 65 T.30 Phase C Page Reception Responses......................................................................................... 68 T.30 Phase D Post Page Responses.................................................................................................. 69 Call Termination with Status...................................................................
Chapter 1 – AT Commands, S-Registers and Result Codes Chapter 1 – AT Commands, SRegisters and Result Codes Introduction The AT commands are used to control the operation of your modem. They are called AT commands because the characters AT must precede each command to get the ATtention of the modem. AT commands can be issued only when the modem is in command mode or online command mode. • The modem is in command mode whenever it is not connected to another modem.
Chapter 1 – AT Commands, S-Registers and Result Codes AT Command Summary Organization of AT Commands on the following pages: 1st, by the initial command character (&, +, %) 2nd, alphabetized by the second command character (Except for listing of AT).
Chapter 1 – AT Commands, S-Registers and Result Codes Command Description $Dn $MBn $SBn #CBAn #CBDn # CBF? # CBFR # CBIn # CBNy=n # CBPn # CBRy # CBSn #Pn #Sx #S=x +VDR=x, y +++AT %%%ATMTSMODEM V.
Chapter 1 – AT Commands, S-Registers and Result Codes AT Commands Command: Values: Description: AT Command: Values: Description: Attention Code N/A The attention code precedes all command lines except A/, A: and escape sequences. ENTER Key N/A Press the ENTER (RETURN) key to execute most commands. Command: Values: Description: A Answer N/A Answer call before final ring. Command: Values: Description: A/ Repeat Last Command N/A Repeat the last command string. Do not precede this command with AT.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: Ds Dial s = dial string (phone number and dial modifiers) none Dial telephone number s, where s may up to 40 characters long and include the 0– 9, *, #, , B, C, and D characters, and the L, P, T, V, W, S, comma (,), semicolon (;), !, @, ^ and $ dial string modifiers. Dial string modifiers: L Redial last number. (Must be placed immediately after ATD.) P Pulse-dial following numbers in command.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: In Information Request n = 0–5, 9, 11 None I0 Display default speed and controller firmware version. I1 Calculate and display ROM checksum (e.g., 12AB). I2 Check ROM and verify the checksum, displaying OK or ERROR. I3 Display default speed and controller firmware version. I4 Display firmware version for data pump (e.g., 94).
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: Sr=n Set Register Value r = S-register number; n varies None Set value of register Sr to value of n, where n is entered in decimal format (e.g., S0=1). Command: Values: Default: Description: Sr? Read Register Value r = S-register number None Read value of register Sr and display it in 3-digit decimal form (e.g., S2? gives the response 043).
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: &Cn Data Carrier Detect (DCD) Control n = 0, 1, 2 1 &C0 Forces the DCD circuit to be always ON. &C1 DCD goes ON when the remote modem’s carrier signal is detected, and goes OFF when the carrier signal is not detected. &C2 DCD turns OFF upon disconnect for time set by S18. It then goes high again (for some PBX phone systems).
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Defaults: Description: &Ln Leased Line Operation n = 0, 1, or 2 0 &L0 The modem is set for standard dial-up operation. &L1 The modem is set for leased line operation in originate mode. &L2 The modem is set for leased line operation in answer mode. Note: For &L1 and &L2, there is a 30-second window between power up and the starting of the leased line handshake. During this time, you can turn off the command, if desired.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Description: &V Command: Values: Default: Description: &Wn Command: Values: &Zy=x Store Dialing Command y = 0–2 (0–1SMI-Parallel {internal}) x = Dialing command None Stores dialing command x in memory location y. Dial the stored number using the command ATDS=y. See Also the #CBS command, a callback security command. Default: Description: Display Current Settings N/A Displays the active modem settings.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: \Kn Break Control n = 0–5 5 Controls the modem's response to a break received from: computer, remote modem, or \B command. Response is different for each of three different states. Data mode. Modem receives the break from the computer: \K0 Enter online command mode, no break sent to the remote modem. \K1 Clear data buffers and send break to the remote modem. \K2 Same as \K0.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: \Vn Protocol Result Code n = 0, 1, or 2 1 \V0 Disables the appending of the protocol result code to the DCE speed. \V1 Enables the appending of the protocol result code to the DCE speed. \V2 Same as \V1. Command: Values: Default: Description: \Xn XON/XOFF Pass-Through n = 0 or 1 0 \X0 Modem responds to and discards XON/XOFF characters. \X1 Modem responds to and passes XON/XOFF characters.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: %En Fallback and Fall Forward Control n = 0, 1, or 2 2 %E0 Disable fallback and fall forward. %E1 Enable fallback, disable fall forward. %E2 Enable fallback and fall forward. Command: Values: Default: Description: %Hn Direct Connect Enable n = 0, 1 0 %H0 Sets callback security to normal operation.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: $RPn Command: Values: Default: $SBn Description: Command: Values: Default: Description: Ring Priority vs. AT Command Priority n = 0 or 1 1 $RP0 The AT command will have priority over the ring. S1 will be reset to 0 if an AT command is received. This command is storable to memory. $RP1 The ring will have priority over the AT command.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: #CBAn Callback Attempts n = 1–255 4 Sets the number of callback attempts that are allowed after passwords have been exchanged between modems. Command: Values: Default: Description: #CBDn Callback Delay n = 0–255 15 Sets the length of time (in seconds) that the modem waits before calling back the remote modem.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: #CBRy Callback Security Reset y = 0–29 None Clears the password and phone number in the y memory location. Command: Values: Default: Description: #CBSn Callback Enable/Disable n = 0, 1, 2, or 3 0 #CBS0 Disables callback security. #CBS1 Enables local and remote callback security. #CBS2 Enables remote callback security only. #CBS3 Disables callback security until local hang-up or reset.
Chapter 1 – AT Commands, S-Registers and Result Codes Escape AT Commands Command: Values: Description: +++AT Escape Sequence N/A Puts the modem in command mode (and optionally issues a command) while remaining online. Type +++AT and up to six optional command characters; then press ENTER. Used mostly to issue the hang-up command: +++ATH. Command: Values: Description: %%%ATMTSMODEM Remote Configuration Escape Sequence N/A Initiates remote configuration mode while online with remote modem.
Chapter 1 – AT Commands, S-Registers and Result Codes V.92 Commands Command: Values: Defaults: Description: +MS= Modulation Selection See description. See description. This extended-format command selects modulation, enables or disables automode, and specifies the highest downstream and upstream connection rates using one to four subparameters. The command syntax is +MS=[mod][,[automode][,[0][,[max_rate][,[0][,[max_rx_rate]]]]]] Subparameters that are not entered retain their current value.
Chapter 1 – AT Commands, S-Registers and Result Codes max_rate An optional number that specifies the highest rate at which the modem may establish an upstream (transmit) connection. The value is decimal coded in units of bps, for example, 33600 specifies the highest rate to be 33600 bps. 0 Maximum rate determined by the modulation selected in mod (default). 300–33600 Maximum rate value limited by the modulation selected in mod. For valid max_rate values for each mod value, see the following table.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: +PMHF V.92 Modem Hook Flash N/A N/A Causes the DCE to go on-hook for a specified period of time, and then return off-hook for at least a specified period of time. The specified period of time is normally one-half second, but may be governed by national regulations. “ERROR” is returned if MOH is not enabled.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: +PQC=n Quick Connect Control n = 0, 1, 2, or 3 3 Controls V.92 shortened Phase 1 and Phase 2 startup procedures (Quick Connect). When line conditions are stable, quick connect results in shortened connect times; however, significant fluctuation in line conditions from call to call can cause longer connect times; thus, it may be advisable to disable quick connect.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: #CBAn Callback Attempts n = 1–255 4 Sets the number of callback attempts that are allowed after passwords have been exchanged between modems. Command: Values: Default: Description: #CBDn Callback Delay n = 0–255 15 Sets the length of time (in seconds) that the modem waits before calling back the remote modem.
Chapter 1 – AT Commands, S-Registers and Result Codes Command: Values: Default: Description: #CBSn Callback Enable/Disable n = 0, 1, 2, or 3 0 #CBS0 Disables callback security. #CBS1 Enables local and remote callback security. #CBS2 Enables remote callback security only. #CBS3 Disables callback security until local hang-up or reset. Command: Values: Default: Description: #Pn Set 11-bit Parity n = 0 or 1 2 #P0No parity. #P1Odd parity. #P2Even parity.
Chapter 1 – AT Commands, S-Registers and Result Codes S-Registers Certain modem values, or parameters, are stored in memory locations called S-Registers. Use the S command to read or to alter the contents of S-Registers (see previous section). Register Unit S0 1 ring Range 0, 1–255 Default 1 Description Sets the number of rings until the modem answers. ATS0=0 disables auto answer completely. S1 1 ring 0–255 0 Counts the rings that have occurred.
Chapter 1 – AT Commands, S-Registers and Result Codes S37 decimal 0–19 0 Sets the maximum V.34 “upstream” speed at which the modem attempts to connect. 0 = maximum speed 1 = reserved 2 = 1200/75 bps 3 = 300 bps 4 = reserved 5 = 1200 bps 6 = 2400 bps 7 = 4800 bps 8 = 7200 bps 9 = 9600 bps 10 = 12000 bps 11 = 14400 bps 12 = 16800 bps 13 = 19200 bps 14 = 21600 bps 15 = 24000 bps 16 = 26400 bps 17 = 28800 bps 18 = 31200 bps 19 = 33600 bps S38 decimal 0–23 1 Sets “downstream” data rate where V.
Chapter 1 – AT Commands, S-Registers and Result Codes S48 decimal 7 or 128 7 Enables (7) or disables (128) LAPM negotiation. The following table lists the S36 and S48 configuration settings for certain types of connections.
Chapter 1 – AT Commands, S-Registers and Result Codes Result Codes In command mode your modem can send responses called Result Codes to your computer. Result codes are used by communications programs and can also appear on your monitor.
Chapter 1 – AT Commands, S-Registers and Result Codes 112 CONNECT 50666 Connected at 50666 bps 113 114 115 116 CONNECT 53333 CONNECT 54666 CONNECT 25333 CONNECT 26666 Connected at 53333 bps Connected at 54666 bps Connected at 25333 bps Connected at 26666 bps * EC is added to these result codes when the extended result codes configuration option is enabled. EC is replaced by one of the following codes, depending on the type of error control connection: V42bis – V.42 error control (LAP-M) and V.
Chapter 2 – Fax Class 1 and 1.0 Commands Chapter 2 – Fax Class 1 and Class 1.0 Commands Fax I/O Processing The fax I/O interface supports asynchronous serial and parallel interfaces. The character format is 8 bit data, no parity, and 1 stop bit. Start and stop elements are removed from the transmit data and added to the receive data. Both transmit and receive data are buffered. Flow control using XON/XOFF or RTS/CTS is provided.
Chapter 2 – Fax Class 1 and 1.0 Commands Fax Mode Selection Fax Class 1 and Fax Class 1.0 commands are identified in Table 3-1. Table 3-1. Fax Class 1 and Fax Class 1.0 Commands Command/Parameter +FCLASS= +FAA= +FAE= +FTS=
Chapter 2 – Fax Class 1 and 1.0 Commands If no more data is in the transmit buffer and the final bit was a 1 (bit 4 of the second byte received from the DTE), the modem generates the OK result code and returns to the command mode. If the final bit was a 0, the modem generates the CONNECT message and waits for further data from the DTE while transmitting HDLC flags. If no more data is received before 5 seconds elapse, the modem drops carrier, goes on-hook, and generates the ERROR result code.
Chapter 2 – Fax Class 1 and 1.0 Commands Fax Data Transmission Fax data transmission is initiated by the AT+FTM= command. After this command is issued, the modem generates the CONNECT message and transmits carrier in the modulation scheme specified by the parameter n. The modem then transmits constant 1 bits for a minimum of one second and continues to transmit constant 1 bits until it receives a character from the DTE.
Chapter 2 – Fax Class 1 and 1.0 Commands Commands and Parameters Mode Entry Commands +FCLASS=1 Select Facsimile Class 1 Mode +FCLASS=1 selects the Fax Class 1 Mode. The Fax Class 1 Mode commands and responses described in this section are applicable when command +FCLASS=1 as shown in Table 3-1. +FCLASS=1.0 - Select Facsimile Class 1.0 Mode +FCLASS=1.0 selects the Fax Class 1.0. The Fax Class 1.0 Mode commands and responses described in this section are applicable when command +FCLASS=1.
Chapter 2 – Fax Class 1 and 1.0 Commands Command: +FRS Receive Silence Description: This command causes the modem to listen and report an OK result code when silence has been detected on the line for the specified period of time. This command will terminate when the required period of silence is detected or when the DTE sends the modem another character other than XON or XOFF, which is discarded. In either event, the OK result code is returned.
Chapter 2 – Fax Class 1 and 1.0 Commands Result Codes: CONNECT – Reported when the modem begins the training sequence after receipt of a valid value. ERROR – If the modem transmit buffer becomes empty and the last transmitted character is NUL (00), the modem continues to transmit NULs until the DTE sends more data or five seconds elapses.
Chapter 2 – Fax Class 1 and 1.0 Commands Command: FTH Transmit Data with HDLC Framing Description: This command causes the modem to transmit data using HDLC protocol and the modulation defined below. Defined Values: Decimal number corresponding to the selected modulation mode and data rates shown in Table 3-2. Result Codes: CONNECT Reported for either of two conditions: 1. At the beginning of transmission of the training pattern for the selected modulation. 2. If the Final Frame bit is 0.
Chapter 2 – Fax Class 1 and 1.0 Commands Service Class 1 Commands Command: +FAR Adaptive Reception Control Description: If Adaptive Reception is enabled, the modem adaptively detects the selected message carrier or V.21 control messages. If the expected carrier is detected, the modem operates as specified in the respective +FRM=
Chapter 2 – Fax Class 1 and 1.0 Commands Command: +FDD Double Escape Character Replacement Description: This parameter conditions the use of the ˜DLE˜˜˜SUB˜ pair to encode consecutive <1/0 <1/0 in data. This may be used to prevent unbound expansion of data that contains many <1/0 patterns. Defined Values: Decimal number corresponding to the selected option.
Chapter 2 – Fax Class 1 and 1.0 Commands Command: +FPR Fixed DTE Rate Description: This numeric extended-format parameter specifies the data rate at which the modem will accept commands during on-line operation. It may be used to select operation at rates at which the modem is not capable of automatically detecting the data rate being used by the DTE. Specifying a value of 0 disables the function and allows operation only at rates automatically detectable by the modem.
Chapter 2 – Fax Class 1 and 1.0 Commands Command: +FLO Flow Control Description: This parameter allows the DTE to identify and select the type of flow control used. Syntax: +FLO= Defined Values: Decimal number corresponding to the selected option. 0 XON/XOFF and RTS/CTS flow control turned off. 1 Use XON/XOFF flow control in either direction. 2 Use RTS for flow control of the modem by the DTE; use CTS for flow control of the DTE by the modem.
Chapter 2 – Fax Class 1 and 1.0 Commands Examples Examples of calling (transmitting) and answering (receiving) one page using Fax Class 1 commands are shown in Table 3-4 and Table 3-5, respectively. The examples show the interchange between the DTE and the modem for various cases. Comments are included to explain how to handle various situations. Commands and responses are in upper case and comments are in lower case. All streams of data denoted by <..frame> are terminated by the characters.
Chapter 2 – Fax Class 1 and 1.0 Commands DTE Commands AT+FRH=3 AT+FRH=3 Modem Responses NO CARRIER CONNECT OK ATH0 OK Local Modem Action detect loss-of-carrier send V.21 carrier send flags send DNC frame send FCS drop carrier hang up Remote Station Action drop carrier Notes detect carrier detect flags receive DC|NC final frame hang up Table 2-5.
Chapter 2 – Fax Class 1 and 1.0 Commands DTE Commands AT+FRH=3 AT+FRH=3 Modem Responses NO CARRIER CONNECT Local Modem Action detect loss-of-carrier send V.21 carrier send flags get MCF frame send FCS accept FCS Remote Station Action drop carrier detect carrier detect flags receive MCF frame detect carrier detect flags receive DCN receive FCS accept FCS detect loss-of-carrier hang up send V.
Chapter 3 – Fax Class 2 Commands Chapter 3 – Fax Class 2 and 2.0/2.1 Commands Introduction This chapter summarizes the fax Service Class 2 and Service Class 2.0/2.1 command sets as implemented in Multi-Tech Systems, Inc. modems. The Service Class 2.0 command set applies to facsimile communications at speeds up to 14 400 bits per second (bps). The Service Class 2.1 command set is a modification of the Class 2.0 command set for facsimile communications at V.
Chapter 3 – Fax Class 2 Commands AT Command Implementation The best way to get an understanding of how Class 2.1 commands or responses are used is to present an example of the transmission and reception of a one-page fax using Class 2.1. Below are the commands and responses given to and returned from the transmitting and receiving modems. Commands are shown in upper case, responses in lower case.
Chapter 3 – Fax Class 2 Commands Transmitting Modem Receiving Modem Line # Command/response Comments Line # Command/response Comments T14 Send T.4 formatted page data R16 Receive T.
Chapter 3 – Fax Class 2 Commands Parameter command types. There are three types of parameter commands: set a parameter, read a parameter, and read the valid values for a parameter. Note: When receiving fax responses from the modem, the state of the regular AT parameter V is important. If verbose mode is enabled (set by issuing the ATV1 command), and then all responses will be preceded and followed by a combination.
Chapter 3 – Fax Class 2 Commands The following table illustrates how each of the parameter types is set or read, with typical responses.
Chapter 3 – Fax Class 2 Commands The baud rate between the host and the fax modem should be at least 20 percent faster than the negotiated baud rate at which the page is transmitted between fax modems. This is because the link between the fax modems is synchronous and the link between the host and the fax modem is asynchronous. Thus, when a fax page is transmitted, fewer bits are going out of the fax modem than are coming in (8 bits per character versus 10 bits per character).
Chapter 3 – Fax Class 2 Commands If you are using Class 2 format, this information is provided through the use of the AT+FDT command with its optional parameters.
Chapter 3 – Fax Class 2 Commands Commands and Responses Overview This chapter describes three kinds of commands and responses: Action commands. Action commands initiate a sequence of events that do not execute instantaneously, and therefore change command mode to command execution mode. An action command must be the last command in a command string. Responses. Responses are result code messages sent to the host by the modem.
Chapter 3 – Fax Class 2 Commands Modem Responses Class 2.
Chapter 3 – Fax Class 2 Commands Parameters for Mandatory Services Class 2.
Chapter 3 – Fax Class 2 Commands Parameters for Optional Services Class 2.
Chapter 3 – Fax Class 2 Commands Identification Commands Service Class Indication A MultiModem modem will report its Service Class capabilities, both the current setting and the range of services available. This is provided by the +FCLASS parameter. Currently-defined values for the +FCLASS parameter are: Parameter Service Class 0 Data modem 1 Fax Service Class 1 (TIA-578, ITU-T.31) 1.0 Fax Service Class 1.0 (ITU-T T.31, Amendment 1) 2 Fax Service Class 2 (EIA 29.2) 2.0 Fax Service Class 2.
Chapter 3 – Fax Class 2 Commands Service Class Selection Class 2.1 +FCLASS= The Service Class may be set by the host from the above choices using the +FCLASS= command. Once the result code is received from the modem. Class 2 +FCLASS= Same as Class 2, except for the +FPR command.
Chapter 3 – Fax Class 2 Commands Action Commands Action commands transfer data and punctuate sessions. They also release specific T.30 messages. An action command with a terminating carriage return character, , in the syntax specification must be the last command on a command line. Subsequent commands on the same line as one of these action commands will be ignored. All action commands initiate processes.
Chapter 3 – Fax Class 2 Commands Data Transmission Class 2.1 +FDT Syntax: +FDT The FDT command requests the modem to transmit a Phase C page. It is issued at the beginning of each page, either in Phase B or in Phase D. When the modem is ready to accept Phase C data, it issues the negotiation responses and the CONNECT result code to the host. Negotiation responses are controlled by the +FNR subparameters.
Chapter 3 – Fax Class 2 Commands Data Reception Class 2.1 +FDR Syntax: +FDR The +FDR command initiates transition to Phase C data reception. This can occur after answering, after dialing, after a document is received, or after a page is received. The modem may report the negotiated T.30 parameters with the remote ID and NSS frame information, if available. When the modem is ready to commence data transfer, it will issue a CONNECT response code.
Chapter 3 – Fax Class 2 Commands Modem Responses The modem sends information responses to the host as a facsimile session proceeds. Responses convey needed information and indicate the state of the facsimile session. These responses are solicited messages, generated in execution of host action commands described in Action Commands section.
Chapter 3 – Fax Class 2 Commands T.30 Phase B Negotiation Responses The modem will provide the on-line status of several session parameters when they are available in the T.30 handshaking and if enabled via the +FNR subparameters. These include the remote ID string and the DIS/DCS/DTC parameters. Report DIS/DCS/DTC Frame Information Class 2.
Chapter 3 – Fax Class 2 Commands Report Remote ID Class 2.1 +FTI:, +FCI:, +FPI: Syntax: Syntax: Syntax: +FTI:”” Transmit Station ID +FCI:”” Called Station ID +FPI:”” Polling Station ID These responses report the received remote ID string, if any. They are generated in execution of the Originate, Answer, +FDT, and +FDR commands. The modem reports the characters in the ID string in reversed time order from the order received from the remote station.
Chapter 3 – Fax Class 2 Commands Report Addressing or Password Strings Class 2.1 +FSA:, +FPA:, +FPW: Syntax: Syntax: Syntax: +FSA:"" Destination Subaddress +FPA:"" Polling Address +FPW:"" Polling Password These responses report the received Addressing or Password string, if any. Originate, Answer, +FDT or +FDR command execution may generate these responses, if the corresponding frames are received.
Chapter 3 – Fax Class 2 Commands T.30 Phase C Page Reception Responses Receive Page Transfer Status Class 2.1 +FPS: Syntax: +FPS:,,,, The +FPS: response is generated by the modem at the end of Phase C data reception in execution of a +FDR command. The response is generated by the modem; it depends on the modem for T.4 or T.6 error checking capabilities, controlled by the +FCQ parameter. See Table 3.0 for values.
Chapter 3 – Fax Class 2 Commands T.30 Phase D Post Page Responses Post Page Message Class 2.1 +FET: Syntax: +FET: The +FET: response is generated by a receiving facsimile modem at the end of Phase C reception on receipt of the post-page message from the transmitting station. The +FET: response is generated in execution of a +FDR command. The codes correspond to the T.30 post page messages as described in Table 3.1. Table 3.2 Class 2.
Chapter 3 – Fax Class 2 Commands The Class 2 response is the same as the Class 2.1 response except that the hang-up cause is stored in the +FAXERR parameter and the values are decimal codes as described in Table 3.4. Table 3.4. Hang-up Status Codes Class 2.
Chapter 3 – Fax Class 2 Commands Class 2.1 Class 2 71 71 RSPREC error 72 72 COMREC error 73 73 T.30 T2 timeout, expected page not received 74 74 T.
Chapter 3 – Fax Class 2 Commands Parameter Commands All Class 2 parameters can be read, written, and tested for the range of legal values by the modem. The general syntax is described in the AT Command section of this Chapter. T.30 Session Parameters Group 3 fax devices negotiate session parameters in the DIS, DCS and DTC frames. The following parameters are provided to condition the fax modem for the capabilities it will offer, and to report the negotiated session settings. The three primary T.
Chapter 3 – Fax Class 2 Commands Current Sessions Parameters Class 2.1 +FIS= Write Syntax: +FIS=VR,BR,WD,LN,DF,EC,BF,ST,JP Values: See Table 3.5 Default: 1,3,2,2,0,0,0,0,0 The +FIS parameter allows the host to sense and constrain the capabilities used for the current session. The modem uses +FIS to generate DIS or DTC messages directly, and uses +FIS and received DIS messages to generate DCS messages.
Chapter 3 – Fax Class 2 Commands T.30 Session Subparameters Several commands and responses reference T.30 session negotiated parameters. These are described by a set of common subparameters, which are described in Table 3.5. Optional parameter values are marked with an asterisk (*).Unspecified parameter values are reserved for future use. The +FCC [+FDCC], +FIS [+FDIS], and +FCS [+FDCS] compound parameters, described in Parameter Commands sections, use these session subparameters.
Chapter 3 – Fax Class 2 Commands Table 3.5. T.30 Session Subparameter Codes Note: Class 2.0/2.1 is shown in hexadecimal values. Class 2 is shown is decimal values. Label Function Class 2.0/2.1 VR Vertical resolution 00h 01h *02h *04h *08h *10h *20h *40h *Class 2.1 only 0 1 0h 1h 2h 3h 4h 5h 0 1 2 3 (Note 1) BR V.34 bit rate (Class 2.1 only) Description R8 × 3.85 l/mm, (98 dpi) Normal R8 × 7.7 l/mm, (196 dpi) Fine R8 × 15.4 l/mm R16 × 15.4 l/mm 200 dpi × 100 l/25.4 mm 200 dpi × 200 l/25.
Chapter 3 – Fax Class 2 Commands Label Function JP JPEG for color and B&W (Note 2) Class 2.0/2.1 00 01 02 04 08 10 20 40 Class 2 Description Disable JPEG coding Enable JPEG coding (T.
Chapter 3 – Fax Class 2 Commands Local ID String Class 2.1 Write syntax: Values: Mandatory values: Default: +FLI +FLI=”” 20-character printable ASCII string 20-character string, Table 3/T.30 Null String The modem generates a TSI or CSI frame if FLI is not a Null String. Table 3/T.30 includes digits 0–9, the + character, and the space character. The modem transmits ID string characters to the remote station in reversed time order from the order in the command line.
Chapter 3 – Fax Class 2 Commands Non-standard Frame FIF Octet String Class 2.1 +FNS Write syntax: Values: Default: +FNS="< hexadecimal-coded octet string>" up to 90 octets Null String If +FNS is not a Null String, the modem sends the corresponding non-standard facilities frame. The type of frame is determined by the type of negotiation frame to be sent: NSF sent with DIS; NSS sent with DCS; NSC sent with DTC. The modem only delivers the data; the host must determine the content.
Chapter 3 – Fax Class 2 Commands Capability to Receive Class 2.1 +FCR Write syntax: Values: Default: +FCR= 0, 1 0 +FCR=0 The modem will not receive message data; also, the modem will not be able to poll a remote device. This can be used when the host has insufficient storage, or if the modem does not have a Phase C (V.27ter, V.29) demodulator. The modem can send and can be polled for a file. +FCR=1 The modem can receive message data. +FCR is sampled in ITU T.30 Phase B and Phase D.
Chapter 3 – Fax Class 2 Commands Negotiation Reporting Class 2.1 +FNR Write syntax: Values: Default: +FNR=,,, 0, 1 for each subparameter 0,0,0,0 +FNR is a compound parameter, used to control the reporting of messages generated during T.30 Phase B negotiations. There are four switches, for four types of reports: Setting Reference Description rpr=0 rpr=1 2.4.2.1 Receiver parameters are not reported; +FIS: and +FTC: reports are suppressed.
Chapter 3 – Fax Class 2 Commands Addressing & Polling Frames Class 2.1 +FSA, +FPA, +FPW Write syntax: +FSA="" +FPA="" +FPW="" 20 digit numeric ASCII string: digits 0-9, *, # and space only Null String The modem sends the numeric string contained in +FSA, +FPA or +FPW at the times specified in Recommendation T.30, if the corresponding parameter is not a Null String.
Chapter 3 – Fax Class 2 Commands T.30 Procedure Control Parameters The fax modem makes decisions at several nodes in the T.30 procedure. These parameters allow a host to sense or determine fax modem policy for these procedure decisions. Page Transfer Status Class 2.1 +FPS Write syntax: Values: Default: + FPS= 1, 2, 3 1 The +FPS parameter contains a value representing the post page response, including copy quality and related end-of-page status.
Chapter 3 – Fax Class 2 Commands Copy Quality Checking Class 2.1 +FCQ Write syntax: Values: +FCQ=, 0, 1 for 0 for 1 for 0 for Other values for and are not supported in the Multi-Tech implementation. The +FCQ parameter controls copy quality checking and correction by a facsimile modem.
Chapter 3 – Fax Class 2 Commands Receive Quality Thresholds Class 2.1 +FRQ Write syntax: Values: +FRQ=, 0 to 64h for 0 to FFh for 0,0 This compound parameter replaces the +BADMUL and +FBADLIN parameters used in Class 2. The modem may use it to make the "Copy Quality OK" decision in the T.30 flow chart (Figure A.7/T.30). If it is used, the modem shall judge copy quality unacceptable if either the percentage of good lines is too low or too many consecutive lines contain errors.
Chapter 3 – Fax Class 2 Commands Adaptive Answer Class 2.1 +FAA Write syntax: Valid values: Default value: +FAA= 0, 1 0 +FAA=0 The modem shall answer only as a Class 2.1 facsimile device. No automatic switching of service class shall occur based on the calling device type. +FAA=1 The modem can answer and automatically determine whether to answer as a facsimile modem or as a data modem. If the modem automatically switches, it resets the +FCLASS parameter to 0.
Chapter 3 – Fax Class 2 Commands T.30 Session Error Report, +FAXERR Class 2.0/2.1 not supported Class 2 +FAXERR Read syntax: > +FAXERR=
, read only Valid values: 0–255; see Table 3.5 for meaning This read only parameter indicates the cause of a hang-up. Table 3.5 shows the valid values for this parameter as well as the meaning of each value. +FAXERR is set by the modem at the conclusion of a fax session. The modem will reset this to 0 at the beginning of Phase A off-hook time.Chapter 3 – Fax Class 2 Commands Phase C Data Format Parameters Data Bit Order: +FBO and +FBOR Class 2.0/2.1 +FBO Write syntax: +FBO= Valid values: 0, 1 Default value: 0 This parameter controls the mapping between PSTN facsimile data and the hostmodem link. There are two choices: +FBO=0 Direct bit order for both Phase C data. The first bit transferred of each byte on the host-modem link is the first bit transferred on the PSTN data carrier. +FBO=1 Reversed bit order for Phase C data.
Chapter 3 – Fax Class 2 Commands Format conversion, +FFC Class 2.0/2.1 Write syntax: +FFC=,,, Valid values: see table below Default values: manufacturer’s option Mandatory values: 0,0,0,0 This compound parameter determines the modem response to mismatches between the Phase C data delivered after the +FDT command and the data format parameters negotiated for the facsimile session.
Chapter 3 – Fax Class 2 Commands Vertical Resolution Format Conversion +FVRFC Class 2.0/2.1 Not Applicable Class 2 Write syntax: +FVRFC= Valid values: 0, 1, 2 Default value: 0 This parameter determines the modem response to a mismatch between the vertical resolution negotiated for the facsimile session, reported by the +FCS:VR subparameter, and the Phase C data desired by the host, indicated by the optional +FDT:VR subparameter, or the +FIS=VR subparameter for +FDR operation.
Chapter 3 – Fax Class 2 Commands Page Width Format Conversion, +FWDFC Class 2.0/2.1 Not Applicable Class 2 Write syntax: +FWDFC= Valid values: 0, 1, 2 Default value: 0 This parameter determines the modem’s response to a mismatch between the page width negotiated for the facsimile session, reported by the +FCS:WD subparameter, and the Phase C data desired by the host, indicated by the optional +FDT:WD subparameter, or the +FIS=WD subparameter for +FDR operation.
Chapter 3 – Fax Class 2 Commands Set Current Time and Date, AT+FTD The AT+FTD command is used to set the current date and time. The current time and date will be tracked automatically by the modem once the time and date are set. However, these boards do not have a real time clock. So, the accuracy of the time and date is not guaranteed. It is recommended that the current time and date be set before each FAX transmit session.
Chapter 3 – Fax Class 2 Commands An escape sequence is a “%” followed by an optional width, which may include a leading left-justification signifier, and then by the escape character itself. It is of the form %[numbers][-]character. The dash (“-“) denotes left justification. When the dash is absent, right justification is used. If the width specification starts with a zero, then, when the escape sequence is expanded, the value will be left-padded with zeroes. Otherwise, it will be left-padded with spaces.
Chapter 3 – Fax Class 2 Commands Session Message Report Responses The modem may be commanded to report the T.30 Phase B and Phase D HDLC control frames as they are sent and received. This service supports session diagnostics and the debugging of host software. It is enabled by the +FBU parameter described in the Parameter Commands section of this chapter.
Chapter 3 – Fax Class 2 Commands Sample Modem Control Sessions Send two pages, 1-D data, no errors (Class 2) Host Commands AT+FCLASS=2 AT+FLID=”” ATD Modem Responses OK OK +FCON [+FCSI:” CONNECT <1st page data> AT+FET=0 AT+FDT Local Modem Action Set Class 2 Set local ID off hook, dial, send CNG detect flags [get CSI] get DIS Remote Station Action answer, send ([CED], V.
Chapter 3 – Fax Class 2 Commands Receive two pages, 1-D data, no errors (Class 2) Host Commands AT+FCR=1 AT+FLID=”” Modem Responses Local Modem Action OK OK Enable Reception Set local ID RING <- Detect ring
Chapter 3 – Fax Class 2 Commands Send two pages, 1-D data, no errors (Class 2.0) Square bracketed [ ] responses are conditional on the remote station actions; curly bracketed { } responses are conditional on switches set by the host. For this example, all reports are enabled: +FNR=1,1,1,1. Square bracketed [ ] commas are optional for the host. Remote Station Action Host Commands Modem Responses Local Modem Action AT+FCLASS=2.
Chapter 3 – Fax Class 2 Commands Receive two pages, 1-D data, no errors (Class 2.0) In this example, the remote station sends NSS, SUB, PWD and TSI. The local modem has +FNR=1,1,1,1 and +FAP=1,1,1.
Chapter 3 – Fax Class 2 Commands Originate and send a two page facsimile with V.34 half-duplex (Class 2.1) Optional T.30 frames are omitted. +FNR=1,1,, +FIS and +FCS subparameters other than BR and EC are not shown. Host Commands Modem Responses Local Modem Action AT+FCLASS=2.1 OK Set class 2 AT+FIS=,B,,,,3,,, OK Set for Rec. V.34, Annex A/T.30, Annex C/T.30 or Annex F/T.
Chapter 3 – Fax Class 2 Commands Answer and receive a two-page facsimile with V.34 half-duplex (Class 2.1) Host Commands Modem Responses Local Modem Action Remote Station Action AT+FCLASS=2.1 OK Set class 2 AT+FIS=,D,,,,3, ,,, OK Set for Rec. V.34, Annex A/T.30, Annex C/T.30 or Annex F/T.30 RING detect ringing off-hook, dial +FCO answer detect CNG send ANSam get CM send JM get CJ negotiate Rec. V.34 begin control channel send DIS send CNG detect ANSam send CM get JM send CJ negotiate Rec. V.
Chapter 3 – Fax Class 2 Commands Alphabetic List of Commands and Responses Name Description A Answer command D Originate command +FAA= Auto Answer Mode parameter +FAXERR= Fax Error Value parameter +FBADLIN= Number of Consecutive Bad Lines for a Bad Page parameter +FBADMUL= Error Threshold Multiplier +FBO= Phase C Data Bit Order parameter +FBS? Buffer Size, read-only parameter +FBU= Session Message Reporting parameter +FPI: Report Remote ID response, CIG +FCFR Confirmation to
Chapter 3 – Fax Class 2 Commands Name Description +FMI? Request modem Manufacturer +FMS= Minimum Phase C Speed parameter +FNC: Report NSC Frame response +FNF: Report NSF Frame response +FNS: Report NSS Frame response +FCT= Phase C Timeout parameter +FPO Remote Polling Indication +FPS: TX Page Transfer Status response +FPS= Page Transfer Status parameter +FMR? Request modem Revision +FEA= Phase C EOL Alignment parameter +FSP= Enable Polling parameter +FTI: Report Remote ID response
Chapter 3 – Fax Class 2 Commands ASCII Conversion Chart CTRL CODE @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ HEX DEC CODE HEX DEC CODE HEX DEC CODE HEX DEC NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 SP ! " # $ % & ' ( ) * + , .
Chapter 4 – Voice Commands Chapter 4 – Voice Commands Introduction This chapter describes +V command support. The +V Command standard IS-101 Voice Control Interim Standard for Asynchronous DCE (prepared by the TIA Technical Subcommittee TR29.2 on Facsimile Digital Interface) defines the commands that a PC user may issue to configure and control a voice/fax/data modem and the responses (result codes) that the voice/fax/data modem may issue in response to those commands.
Chapter 4 – Voice Commands Voice S-Register Summary Voice mode S-Register changes are outlined below. S-Register S0 S7 S10 Description Automatic answer is disallowed in Voice mode. Wait for Carrier After Dial. Default is 60 seconds. In Voice mode, S7 contains the maximum amount of time that the modem will wait during Call Origination, all the time detecting for ring backs, before assuming that the remote station will not go off hook. Automatic disconnect is disallowed in Voice mode.
Chapter 4 – Voice Commands Voice +V Commands Summary These commands support Voice mode.
Chapter 4 – Voice Commands Command: Values: Description: +FCLASS=8 DTMF Detect Detect and Control DTMF 8 characters, case sensitive The +FCLASS=8 is used to detect and control DTMF using the procedure below: 1. Enter the command AT+FCLASS=8 to the modem. 2. Call into modem with phone. A ¾r (incoming ring indication) is displayed, followed by OK. The modem is now in Online Voice Command mode, allowing DTMF characters to be passed through from the remote phone.
Chapter 4 – Voice Commands Command: Values: Result Codes: Description: +VNH= Automatic Hang-Up Control 0, 1, 2, 3 through 255 OK if command accepted; ERROR if parameter out of range.
Chapter 4 – Voice Commands Command: +VRX Enter Voice Receive State Values: 0, 1, 2–127, 128–255 Result Codes: Values (above) if the modem accepts the command; ERROR if the modem is not connected to an off-hook Telco line, or one non-Telco input device. Description: +VRX causes the modem to start the voice reception process. The modem starts the process by returning the CONNECT result code to the PC. The modem then sends shielded voice data to the PC, in the format previously selected by the +VSM command.
Chapter 4 – Voice Commands Missing parameters are assumed to be the default value. Unspecified values always default to 0 for frequencies, DTMF * for DTMF tones, and +VTD for duration. The omission of commas (and associated subparameters) is valid. The quantity in the square brackets consists of a three-element list. The first element is the first frequency, the second element is the second frequency, and the third element is the duration, in 0.01second intervals. A list may contain null elements.
Chapter 4 – Voice Commands Command: +VTX Start Voice Transmission Process Result Codes: OK on completion of transmission; CONNECT if the modem accepts the command; ERROR if the modem is not connected to at least one off-hook Telco line, or one nonTelco device. Description: The +VTX command causes the modem to start the voice transmission process. The PC sends the data in the format of the previously entered +VSM command, using the flow control method selected by the +FLO command.
Chapter 4 – Voice Commands Command: +VLS=
Chapter 4 – Voice Commands 15 Command: HT External microphone and speaker combination (headset or handset) connected to modem. Modem is off hook, and connected to Telco. Local phone provided with power to detect hook condition.
Chapter 4 – Voice Commands Command: +VSD=, Set Silence Detection Sensitivity Values: 0–256 (in 0.1 second intervals) Result Codes: OK if modem accepts the command; ERROR if one or more of the following apply: 1) the or parameter entered is out of range, or 2) either of the two parameters is missing from the command string. If an error occurs, modem retains the previous and parameter values.
Chapter 4 – Voice Commands Command Values: Default: Result Codes: Description: +VSM=,,, Select Voice Compression Method (see individual parameter descriptions) (see individual parameter descriptions) OK if the modem accepts the command; ERROR if one or more of the following apply: 1) the any parameter entered is out of range, or 2) any of the four parameters are missing from the command string. If an error occurs, the modem retains the previous and parameter values.
Chapter 4 – Voice Commands Command: +VSM=? Report Voice Compression Method Result Codes: OK Description: The +VSM=? command reports several compression method identifiers in one of two ways: either 1) a compression method (for PCM coding) from the table below, or 2) a cooperative identifier (non-PCM coding) used with other manufacturer's equipment. Example: The following shows an inquiry about the modem support of compression and other data.
Chapter 4 – Voice Commands Command: +VDR=, Enable/Disable Distinctive Ring (Ring Cadence Reporting) Values: See the Description Result Codes: OK if the modem accepts the command; ERROR if the parameter is out of range. Description: The +VDR command causes the modem to enable or disable reporting of the ring cadence information, and to control the timing of the Ring event code report if ring cadence reporting is enabled.
Chapter 4 – Voice Commands Command: +VDT=, Control Tone Cadence Reporting Result Codes: OK if the modem accepts the command; ERROR if the parameter is out of range. Description: The +VDT command causes the modem to enable or disable reporting of the control tone cadence information in the frequency band used by the Ring Back/Remote Ring, Busy, and Reorder/Fast Busy tones (usually in the 300 - 600 Hz range).
Chapter 4 – Voice Commands Command: Description: +VEM=? Report Event Reporting and Masking Capabilities The +VEM=? command returns four lines of modem event reporting/masking capability information, followed by the OK result code. The first line indicates the Service Level supported by the modem (though the modem may support more than the capabilities displayed). The next three lines report the capability of the Voice Transmit mode, Voice Receive mode, and the Voice Command mode, respectively.
Chapter 4 – Voice Commands Interface Configuration Commands The commands in this section are used to define the interface between the PC and the modem. Command: Values: +VBT=, Set Modem Flow Control Assert and Deassert Points and are buffer offsets from the start of the buffer. The buffer's first position is 0. The offset units are octets.
Chapter 4 – Voice Commands Command: Values: Result Codes: Description: +VPR= Select DTE/DCE Interface Rate (Turn Off Autobaud) 0, 1, 2, 3, 4, 5, 6, 7, 8 OK if the modem accepts the command; ERROR if the value is out of range. The +VPR= command causes the modem to select between various fixed modem-to-PC interface rates and autobauding.
Chapter 4 – Voice Commands Flow Control XON/XOFF flow control is used by the SocketModem to match the PC-to-modem data rate to the line-signaling rate, as well as to the requirements of analog conversion of the voice signals and voice data. In-band, uni-directional XON/XOFF flow control is mandatory. RTS/CTS (V.24 circuits 106 and 133) flow control is optional per the IS-101 standard.
Chapter 4 – Voice Commands Unsolicited Voice Mode Result Codes The form of the unsolicited result codes for voice mode is different from standard modem Command mode result codes. The +V specification refers to these voice mode result codes as "event detection reports". Event detection reports are provided in simple report format when one character is enough to report an event, such as RING.
Chapter 4 – Voice Commands Voice Mode Shielded Codes These codes can be sent in either Command mode or Data mode. The DCE may return the event detection reports after the OK result code from the +FCLASS command. One or more simple event detection reports may be embedded within the data portion of a complex event detection report. Table 3 describes voice mode shielded codes. The number in the first column is the ASCII equivalent (in hex).
Chapter 4 – Voice Commands J $ (4A) Event Number 11 (SIT Tone). (24) Event Number 12 (Bong Tone). I (6C) Event Number 13 (Loop Current Interruption). Usually indicates a remote hang up. (4C) Event Number 14 (Loop Current Polarity Reversal). May indicate a hang up or a receive, depending on CO implementation. (77) Event Number 15 (Call Waiting/Beep Interrupt). (74) Event Number 17 (TDD Detected - 1400/1800). (72) Event Number 18 (Ring Back). (62) Event Number 19 (BUSY). May be repeatedly sent.
Chapter 4 – Voice Commands Sample Sessions This section provides voice mode Send/Receive handshaking examples. Sample Rate Selection and Suggested Compression Method Command AT+VSM=? Response The PC inquires about the compression methods and bits-per-sample options. The modem reports two compression methods: 1) PCM, twelve bits per sample, timing marks, sampling rates of 7200-8000 and 11025, three levels of silence compression sensitivity, and silence clip to 0.
Chapter 4 – Voice Commands AT+VSM=128, 7200, 128, 0; +VEM=FFFFFFFF8; +VSD=128, 50 OK The modem agrees. AT+VSM=129, 7200, 0, 0 The PC changes its PC/modem interface rate to 38400 bps and selects a compression method with the least sensitive setting, with the goal of playing a message with less distortion, and at 7200 samples per second. (Assume that the PC issued a +VSM=? command earlier.) OK The modem agrees. AT+VLS=4 The modem selects the speaker.
Chapter 4 – Voice Commands OK AT+VIT=0; The DCE agrees. The DTE selects Data mode/Command mode with +VPR=0; autobauding, and disables automatic DCE answering. The +FCLASS=0; DCE waits for a phone call (not necessarily in Data mode). S0=0 AT+FCLASS=8; The DCE switches to Voice mode. The DCE selects a fixed DTE/DCEAT+VIT=60; AT+VPR=16; Interface Rate. The DTE knows from the sample rate selected earlier and the bits per sample that the DTE/DCE Interface Rate should be 38400 baud.
Chapter 4 – Voice Commands DTE/DCE Interface Rates The table below indicates the anticipated modem-to-computer interface rates for both the 7.2 bits-persample rate and the 8 bits-per-sample rate. Projected DTE/DCE Interface Rates for 7.2/8K Hz Sample Rates Bits per Sample 0.5 1 2 3 4 5 6 7 8 9 10 11 12 13 Projected DTE/DCE I/F Rate @ 7.
Chapter 5 – Remote Configuration and Country Code Configuration Chapter 5 – Remote Configuration and Country Code Configuration Remote Configuration Remote configuration is a network management tool that allows you to configure modems anywhere in your network from one location. With password-protected remote configuration, you can issue AT commands to a remote SocketModem for maintenance or troubleshooting as if you were on-site.
Chapter 5 – Remote Configuration and Country Code Configuration Country Code Configuration Different countries have different requirements for how modems must function. Therefore, before you use the modem, you must configure it to match the defaults of the country in which you are using it. You can use one of two configuration methods: Using the Global Wizard and Using AT Commands. Using the Global Wizard Utility The Global Wizard configuration utility is recommended for computers running Windows. 1.
Index Index + +FBO................................................................................87 +FBOR.............................................................................87 +FVRFC – Vertical Resolution Format Conversion.........89 5 56K operation digital loss when used with PBX S108.........................30 A Abort timer - S7 ................................................................28 Action Commands ......................................................55, 61 adaptive answer ......
Index B Backspace character - S5, setting......................................28 Bad Line Threshold parameter..........................................84 Bell 212A mode..................................................................8 Blacklist command ...........................................................16 Break Control command - \K............................................15 Break Signal .....................................................................15 Buffer Size parameters..............
Index +FPA:- Report Addressing or Password Strings ..........67 +FPI – Local Polling ID String ....................................77 +FPI:- Report Remote ID .............................................66 +FPO – Remote Polling Indication ..............................65 +FPS – Page Transfer Status ........................................82 +FPS – Receive Page Transfer Status ..........................68 +FPW – Addressing & Polling Frames ........................
Index AT Command Implementation.....................................49 AT Command Mode.....................................................50 Fax Class 2 Parameter Table.......................................54 Fax Commands +FAA – Auto Answer Enable Class 1.0 .......................37 +FAE – Auto Answer Enable Clas 1 & 1.0..................37 +FAR – Adaptive Reception Control ...........................41 +FCL – Carrier Loss Timeout ......................................
Index Page Transfer Status - +FPS .............................................82 Page Width Format Conversion - +FWDFC.....................90 Parameter Commands .......................................................72 parity, setting ..............................................................20, 27 Pause time for comma - S8, setting...................................28 PCM Upstream Ignore command - +PIG= .......................23 Phase C Data Format - +FBO ...........................................
Index S37 – Maximum Speed ................................................29 S38 – Downstream Data Rate.......................................29 S4 – Line Feed Character .............................................28 S43 – Testing and Debugging ......................................29 S48 – Error Control ......................................................30 S5 – Backspace Character ............................................28 S6 – Wait Time for Dail Tone ......................................
