PROMETHEUS PRODUCTS, INC. ========================= PC CYBERPORT PRO 288EV (PC288EV) MAC CYBERPORT PRO 288EV (M288EV) Card Type Fax, Modem (synchronous/asynchronous), Voice Chip Set Unidentified I/O Options Speakerphone, Voice-mail Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus External Fax Class Class I & II Data Modulation Bell 103A/212A Protocol ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29, Protocol V.33 Error MNP5, V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |------------------------------------------------------------| | Line out | CN1 | RS-232/422 | CN5 | |----------------------------+---------+--------------+------| | Line in | CN2 | DC power | CN6 | |----------------------------+---------+--------------+------| | Speaker out | CN3 | Power switch | SW1 | |----------------------------+---------+--------------+------| | Microphone in | CN4 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |-----+-------+----------+-----------------------------------| | AA | Red | On | Auto-answer enabled | |-----+-------+----------+-----------------------------------| | AA | Red | Off | Auto-answer disabled | |-----+-------+----------+-----------------------------------| | AA | Red | Blinking | Phone is ringing | |-----+-------+----------+-----------------------------------| | CD | Red | On | Carrier signal detected | |-----+-------+----------+-----------------------------------| | CD | Red | Off | Carrier signal not detected | |-----+-------+----------+-----------------------------------| | OH | Red | On | Modem is off-hook | |-----+-------+----------+-----------------------------------| | OH | Red | Off | Modem is on-hook | |-----+-------+----------+-----------------------------------| | IO | Red | On | Modem is transmitting or | | | | | receiving data | |-----+-------+----------+-----------------------------------| | IO | Red | Off | Modem is not transmitting or | | | | | receiving data | |-----+-------+----------+-----------------------------------| | MR | Red | On | Power is on | |-----+-------+----------+-----------------------------------| | MR | Red | Off | Power is off | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | ASYNCHRONOUS - CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Description: | Sets the type of connection used for | | | asynchronous operation | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \N0 | Wire mode enabled | |--------------+---------------------------------------------| | \N1 | Direct V.14 asynchronous mode enabled | |--------------+---------------------------------------------| | \N2 | MNP reliable mode enabled | |--------------+---------------------------------------------| | \N3 | Auto-reliable mode enabled | |--------------+---------------------------------------------| | \N4 | V.42 reliable mode enabled | |--------------+---------------------------------------------| | \N5 | V.42 auto-reliable mode or MNP mode enabled | |--------------+---------------------------------------------| | \N6 | V.13 - simulated controlled carrier mode | | | enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-FALLBACK/FALL-FORWARD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &An [cmds] | |--------------+---------------------------------------------| | Description: | Selects auto-fallback/fall-forward | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &A0 | Auto-fallback/fall-forward disabled | |--------------+---------------------------------------------| | &A1 | Auto-fallback/fall-forward enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %An [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used as the | | | auto-reliable fallback character; %A0 will | | | disable this function. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK TYPE | |------------------------------------------------------------| | Type: | Configuration | |---------------+--------------------------------------------| | Format: | AT [cmds] \Kn [cmds] | |---------------+--------------------------------------------| | Description: | Configures action of break signal | |------------------------------------------------------------| | Command | Function | |-----------+------------------------------------------------| | \K0 | Break sent to remote modem and buffered | | | cleared | |-----------+------------------------------------------------| | \K1 | Break sent to remote modem and buffered saved | |-----------+------------------------------------------------| | \K2 | Timed break to remote modem and buffered saved | |-----------+------------------------------------------------| | \K3 | Break ignored | |-----------+------------------------------------------------| | \K4 | Timed break until no break character and | | | buffered saved | |-----------+------------------------------------------------| | \K5 | Timed break until no break character and | | | buffered saved | +------------------------------------------------------------+ +------------------------------------------------------------+ | BUSY OUT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Bn [cmds] | |--------------+---------------------------------------------| | Description: | Sends busy signal when modem is in a test | | | mode. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | %B0 | Do not send busy signal when modem is in | | | test mode | |---------------+--------------------------------------------| | %B1 | Send busy signal on loss of DTR | |---------------+--------------------------------------------| | %B2 | Send busy signal when modem is in analog | | | loopback | |---------------+--------------------------------------------| | %B3 | Send busy signal when modem is in analog | | | loopback or on loss of RTS or DTR | |---------------+--------------------------------------------| | %B4 | Send busy signal on loss of RTS | +------------------------------------------------------------+ +------------------------------------------------------------+ | CHARACTER ABORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Kn [cmds] | |--------------+---------------------------------------------| | Description: | Controls character abort | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | %K0 | 2 second delay until character abort | |----------------+-------------------------------------------| | %K1 | Character abort disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | CHARACTER LENGTH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |--------------+---------------------------------------------| | Description: | Controls character length | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | \B0 | 6N1 | |---------------+--------------------------------------------| | \B1 | 7N1 | |---------------+--------------------------------------------| | \B2 | 7P1, control is set by \P command for | | | parity type | |---------------+--------------------------------------------| | \B3 | 8N1 | |---------------+--------------------------------------------| | \B4 | 7P2, control is set by \P command for | | | parity type | |---------------+--------------------------------------------| | \B5 | 8P1, control is set by \P command for | | | parity type | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Cn [cmds] | |--------------+---------------------------------------------| | Description: | Selects data compression | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %C0 | Data compression disabled | |--------------+---------------------------------------------| | %C1 | Transmit and receive path enabled | |--------------+---------------------------------------------| | %C2 | Transmit path enabled in V.42bis | |--------------+---------------------------------------------| | %C3 | Receive path enabled in V.42bis | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MESSAGE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Vn [cmds] | |--------------+---------------------------------------------| | Description: | Selects connect message type reporting | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \V0 | CONNECT reported as VF speed upon data | | | mode, link message after link negotiation | |--------------+---------------------------------------------| | \V1 | CONNECT reported as DTE speed after link | | | negotiation | |--------------+---------------------------------------------| | \V2 | CONNECT reported as VF speed after link and | | | MNP negotiation | |--------------+---------------------------------------------| | \V3 | CONNECT reported as DTE speed after | | | protocol negotiation | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA CARRIER DETECT (DCD) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Cn [cmds] | |--------------+---------------------------------------------| | Description: | Selects the DCD options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &C0 | DCD enabled | |--------------+---------------------------------------------| | &C1 | Real mode enabled; follow modem energy | | | detection. | |--------------+---------------------------------------------| | &C2 | DCD enabled after carrier signal detected | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA SET READY (DSR) - TEST MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Dn [cmds] | |--------------+---------------------------------------------| | Description: | Selects DSR options in test mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %D0 | DSR forced high during analog loopback | |--------------+---------------------------------------------| | %D1 | DSR low during this test | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |--------------+---------------------------------------------| | ! or & | Flash function initiated. Modem commanded | | | to go off-hook for 1/2 second before | | | returning on-hook. | |--------------+---------------------------------------------| | , or < | Dialing paused for amount of time specified | | | in S8 register | |--------------+---------------------------------------------| | :n | Redial for n times until data mode is | | | established | |--------------+---------------------------------------------| | ; | Modem returned to Command state after | | | dialing. The semicolon can only be placed | | | at the end of the dial command. | |--------------+---------------------------------------------| | @ | Wait for Quite Answer function enabled. | | | Modem waits until a "quiet answer," a | | | ring-back signal followed by silence up to | | | the time specified in S7, is received prior | | | to executing the rest of the dial string. | |--------------+---------------------------------------------| | Ln | Link to cell n when modem cannot establish | | | data mode | |--------------+---------------------------------------------| | P | Pulse dialing enabled | |--------------+---------------------------------------------| | R | Answer mode enabled; originate mode | | | disabled following handshake initiation. | |--------------+---------------------------------------------| | S | Dial stored telephone number | |--------------+---------------------------------------------| | T | Tone dialing enabled/Pulse dialing disabled | |--------------+---------------------------------------------| | W | Dialing resumed following dial tone | | | detection; for amount of time specified in | | | S6 register | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTE INTERFACE-CONTROLLED TEST | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %En [cmds] | |--------------+---------------------------------------------| | Description: | Controls DTE interface-controlled tests | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | %E0 | Tests controlled by DTE interface pins | | | disabled | |----------------+-------------------------------------------| | %E1 | Tests controlled by DTE interface pins | | | enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTE SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format | AT [cmds] \Tn [cmds] | |--------------+---------------------------------------------| | Description: | Sets the maximum allowable DTE speed | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \T0 | Autobaud | |--------------+---------------------------------------------| | \T1 | Last AT speed | |--------------+---------------------------------------------| | \T2 | 300bps | |--------------+---------------------------------------------| | \T3 | 1200bps | |--------------+---------------------------------------------| | \T4 | 2400bps | |--------------+---------------------------------------------| | \T5 | 4800bps | |--------------+---------------------------------------------| | \T6 | 7200bps | |--------------+---------------------------------------------| | \T7 | 9600bps | |--------------+---------------------------------------------| | \T8 | 12.0Kbps | |--------------+---------------------------------------------| | \T9 | 14.4Kbps | |--------------+---------------------------------------------| | \T10 | 16.8Kbps | |--------------+---------------------------------------------| | \T11 | 19.2Kbps | |--------------+---------------------------------------------| | \T12 | 21.6Kbps | |--------------+---------------------------------------------| | \T13 | 24Kbps | |--------------+---------------------------------------------| | \T14 | 26.4Kbps | |--------------+---------------------------------------------| | \T15 | 28.8Kbps | |--------------+---------------------------------------------| | \T16 | 38.4Kbps | |--------------+---------------------------------------------| | \T17 | 57.6Kbps | |--------------+---------------------------------------------| | \T18 | 76.8Kbps | |--------------+---------------------------------------------| | \T19 | 115.2Kbps | |--------------+---------------------------------------------| | \T20 | 128Kbps | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR DIALING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Zn [cmds] | |--------------+---------------------------------------------| | Description: | Controls DTR dialing | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | %Z0 | DTR is ignored | |----------------+-------------------------------------------| | %Z1=n | Dial from cell n | |----------------+-------------------------------------------| | %Z2 | Go off-hook and attempt to handshake | +------------------------------------------------------------+ +------------------------------------------------------------+ | FIXED PROFILES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Fn [cmds] | |--------------+---------------------------------------------| | Description: | Controls active profile to values found in | | | fixed profile | |------------------------------------------------------------| | Command | Function | |-------------------+----------------------------------------| | &F0 | PSTN, asynchronous, V.42, V.42bis | |-------------------+----------------------------------------| | &F1 | PSTN, synchronous | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Gn [cmds] | |--------------+---------------------------------------------| | Description: | Selects modem port flow control | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \G0 | Flow control disabled | |--------------+---------------------------------------------| | \G1 | XON/XOFF signals trapped by local modem | |--------------+---------------------------------------------| | \G2 | Flow control enabled in transmit path | |--------------+---------------------------------------------| | \G3 | Transmit and receive path enabled with | | | pass-through | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Qn [cmds] | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \Q0 | Flow control disabled | |--------------+---------------------------------------------| | \Q1 | Bi-directional XON/XOFF flow control | | | enabled | |--------------+---------------------------------------------| | \Q2 | CTS flow control by DCE enabled | |--------------+---------------------------------------------| | \Q3 | Bi-directional RTS/CTS flow control enabled | |--------------+---------------------------------------------| | \Q4 | Unidirectional XON/XOFF flow control by DCE | | | enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | HANDSHAKE MODE - PSTN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Hn [cmds] | |--------------+---------------------------------------------| | Description: | Set the handshake mode when originating | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | &H0 | GDC fast auto (28.8Kbps - 300bps) | |----------------+-------------------------------------------| | &H1 | GDC fast only (28.8Kbps - 9600bps) | |----------------+-------------------------------------------| | &H2 | V.32bis automatic (14.4Kbps - 300bps) | |----------------+-------------------------------------------| | &H3 | V.32bis only (14.4Kbps - 4800bps) | |----------------+-------------------------------------------| | &H4 | V.32 automatic (9600bps - 300bps) | |----------------+-------------------------------------------| | &H5 | V.32 only (9600bps - 4800bps) | |----------------+-------------------------------------------| | &H6 | V.22bis only (2400bps - 1200bps) | |----------------+-------------------------------------------| | &H7 | V.22 only (1200bps) | |----------------+-------------------------------------------| | &H8 | Bell 212A only (1200bps) | |----------------+-------------------------------------------| | &H9 | Bell 103 only (300bps) | |----------------+-------------------------------------------| | &H10 | V.21 only (300bps) | +------------------------------------------------------------+ +------------------------------------------------------------+ | MESSAGE RESPONSE SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format | AT [cmds] %Rn [cmds] | |--------------+---------------------------------------------| | Description: | Sets the maximum allowable message speed | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %R0 | Autobaud | |--------------+---------------------------------------------| | %R1 | Speed of last connection | |--------------+---------------------------------------------| | %R2 | 300bps | |--------------+---------------------------------------------| | %R3 | 1200bps | |--------------+---------------------------------------------| | %R4 | 2400bps | |--------------+---------------------------------------------| | %R5 | 4800bps | |--------------+---------------------------------------------| | %R6 | 7200bps | |--------------+---------------------------------------------| | %R7 | 9600bps | |--------------+---------------------------------------------| | %R8 | 12.0Kbps | |--------------+---------------------------------------------| | %R9 | 14.4Kbps | |--------------+---------------------------------------------| | %R10 | 16.8Kbps | |--------------+---------------------------------------------| | %R11 | 19.2Kbps | |--------------+---------------------------------------------| | %R12 | 21.6Kbps | |--------------+---------------------------------------------| | %R13 | 24Kbps | |--------------+---------------------------------------------| | %R14 | 26.4Kbps | |--------------+---------------------------------------------| | %R15 | 28.8Kbps | |--------------+---------------------------------------------| | %R16 | 38.4Kbps | |--------------+---------------------------------------------| | %R17 | 57.6Kbps | |--------------+---------------------------------------------| | %R18 | 76.8Kbps | |--------------+---------------------------------------------| | %R19 | 115.2Kbps | |--------------+---------------------------------------------| | %R20 | 128Kbps | +------------------------------------------------------------+ +------------------------------------------------------------+ | OVERSPEED CORRECTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \An [cmds] | |--------------+---------------------------------------------| | Description: | Controls overspeed correction | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \A0 | 1.25% asynchronous overspeed correction | | | enabled | |--------------+---------------------------------------------| | \A1 | 2.5% overspeed correction enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | PARITY CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Pn [cmds] | |--------------+---------------------------------------------| | Description: | Controls Parity | |------------------------------------------------------------| | Command | Function | |----------------+-------------------------------------------| | \P0 | Parity even | |----------------+-------------------------------------------| | \P1 | Space Parity | |----------------+-------------------------------------------| | \P2 | Parity odd | |----------------+-------------------------------------------| | \P3 | Mark Parity | |----------------+-------------------------------------------| | \P4 | Last AT command (automatic) | +------------------------------------------------------------+ +------------------------------------------------------------+ | PRE-LINK DATA BUFFER/FALLBACK CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Cn [cmds] | |--------------+---------------------------------------------| | Description: | Sets the handling of pre-link data buffer | | | and fallback | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \C0 | Time-out and fallback, speed buffer, no | | | data buffer | |--------------+---------------------------------------------| | \C1 | Time-out and fallback, speed buffer, buffer | | | received data | |--------------+---------------------------------------------| | \C2 | Auto-reliable, fallback with fallback | | | character speed buffer, no receive data | | | buffer | |--------------+---------------------------------------------| | \C3 | Time-out and fallback, V.14, buffer | | | received data | |--------------+---------------------------------------------| | \C4 | Time-out or fallback with fallback | | | character, V.14, no data buffer | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT INFORMATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] In [cmds] | |--------------+---------------------------------------------| | Description: | Displays information requested | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | I0 | Reports product code | |--------------+---------------------------------------------| | I1 | Reports ROM checksum | |--------------+---------------------------------------------| | I2 | Tests and reports ROM checksum | |--------------+---------------------------------------------| | I3 | Reports firmware revision level (A-) | |--------------+---------------------------------------------| | I4 | Displays settings of all S-registers | +------------------------------------------------------------+ +------------------------------------------------------------+ | REQUEST STORED NUMBERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] &V [cmds] | |--------------+---------------------------------------------| | Description: | Displays the list of stored numbers; only 4 | | | can be stored. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETRAIN - LINE SIGNAL QUALITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Qn [cmds] | |--------------+---------------------------------------------| | Description: | Controls retrain function if poor line | | | quality is detected | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | %Q0 | Retrain disabled | |---------------+--------------------------------------------| | %Q1 | 3 retraining attempts enabled, hang-up if | | | not successful | |---------------+--------------------------------------------| | %Q2 | Retrain enabled until line quality is good | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETRANSMISSION COUNTER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S70=n [cmds] | |--------------+---------------------------------------------| | Default: | 100 | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | Unidentified | |--------------+---------------------------------------------| | Description: | Counts the number of retries to make a | | | connection | +------------------------------------------------------------+ +------------------------------------------------------------+ | SIMULATED CONTROLLED CARRIER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Description: | Controls simulated controlled carrier | | | (ITU-T V.13) | |------------------------------------------------------------| | Command | Function | |-----------------+------------------------------------------| | &E0 | Transmit and receive path enabled | |-----------------+------------------------------------------| | &E1 | Transmit path enabled | |-----------------+------------------------------------------| | &E2 | Receive path enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | SYNCHRONOUS - CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Description: | Sets the type of protocol used for | | | synchronous operation | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \M0 | Normal synchronous mode enabled | |--------------+---------------------------------------------| | \M1 | V.13 synchronous mode enabled, simulated | | | controlled carrier | +------------------------------------------------------------+