1modemATAT,,AT,()ASCII“AT”EnterA/(+++)AT,ATATAtaT39(AT)(backspace)ATERRORERROR.ACTIVEATVAT*AT&WnA/AT/,(Enter)+++:+SS2AT=xSxSSATSnx,SOKAT?SSSATSnATA,S7(=50),DTEATBn*ITU-TBell=0ATB01200300bpsITU-TV.22V.21ATB11200300bpsBell212A103ATCn=1ATC1ATDn,ATD,,,360-9ABCD*#LPTR!@W,;^S=n0-9DTMF09A-DDTMFA,B,CD*()##()JMNP10()KMNP10()LPTR,!S29@5wS7,S8,;^()-space,S=nAT&ZnnATE*:1ATE0ATE1ATHn:0ATH0ATH1OKATInI0I1ROMI2ROM,OKERRORI3I4OEMI5I6I7ATLn*:2ATL0ATL1ATL2ATL3ATMn*:1ATM0ATM1ATM2ATM3ATNn*:1ATN0S37,S370,AT(Bell212AITU-TV.221200bps)ATBATN1ATBITU-TATOn:0ATO0,ATO1,ATP*ATQn*:0ATQ0DTEATQ1DTEATSnSnATSn?SSSATSn=xSxSnATT*ATVn*():1ATV0()ATV1()ATWn*:0ATW0A2modemATTW1ATW2CONNECTxxxxDCEATXn*:4ATX0CONNECTATX1CONNECTXXXXATX25NODIALTONECONNECTxxxxATX3,,BUSY,,CONNECTXXXXATX45NODIALTONE,,BUSYCONNECTXXXXATYn*:0ATY0ATY1ATZn:0ATZ00ATZ11AT&An*():1AT&A0,DTRAT&A1.DTE,.AT&Cn*RS232-CDCD:1AT&C0DCDONAT&C1DCDAT&Dn*RS232-CDTR:2DTRDTR:&D0&D1&D2&D3&Q0NONE234&Q11234&Q23333&Q33333&Q41234&Q5NONE234&Q6NONE2341OK2,,OK3OK,DTROFF4(ATZ)AT&Fn:0&F0V.42bis&F1MNP5&F2DIRECT&F3MNP10()AT&Gn*:0AT&G0AT&G1AT&G21800HZAT&Jn*:0AT&J0AT&J1AT&Kn*DTE/:3AT&K0AT&K3RTS/CTSAT&K4XON/XOFFAT&K5XON/XOFFAT&K6RTS/CTSXON/XOFF()AT&Ln*:0AT&L0AT&L1AT&L2AT&Mn*AT&Q0-3AT&Pn*:0AT&P03961@10PPSAT&P13367@10PPSAT&P23961@20PPSAT&P33367@20PPSAT&Qn*:5AT&Q0AT&Q1AT&Q2AT&Q3AT&Q4AT&Q5AT&Q6AT&Rn*RS232-CRTS/CTS:0AT&R0CTSRTS,DTERTSOFFONS2610,CTSONAT&R1RTS,AT&K3,CTSONAT&Sn*RS232-CDSR:0AT&S0DSRONAT&S1DSREIA-232-CAT&Tn*:4()78S18S18OKAT&T0AT&T1AT&T3·,,ERRORAT&T4AT&T5AT&T6,,ERRORT&T7,,ERRORAT&T8AT&VAT&V0AT&V1AT&Wn0AT&W00AT&W11AT&Xn*0AT&X0AT&X1DTEAT&X2AT&Yn*0AT&Y00AT&Y11AT&Zn=x(n=0-3)036(x)(n),(ATDS=n)AT\AnMNP:2AT\A064AT\A1128AT\A2192AT\A3256AT\Bn(n=1-9):3MNP,,n100,MNP,,PDUAT\Gn:0AT\G0(XON/XOFF)AT\G1(XON/XOFF)AT\JnDTE:0AT\J0DTEAT\J1DTEAT\Kn:5DTE,3modemATAT\K0,2,4,AT\K1AT\K3,AT\K5.AT\K0,1AT\K2,3AT\K4,5DTE,AT\K0,1,DTEAT\K2,3,DTEAT\K4,5AT\LnMNP:0AT\L0MNPAT\L1MNPAT\Nn:3AT\N0()AT\N1(&M0,&Q0)AT\N2,AT\N3AT\N4LAPM,LAPMAT\N5MNP,MNPAT\Vn0AT\V0AT\V1ATC*:3AT%C0AT%C1MNP5AT%C2V.42bisAT%C3MNP5V.42bisATEn/2(E1)AT%E0AT%E1AT%E2AT%E3ATL,001=-1dBm002=-2dBm::043=-43dBmAT%On1AT%O0AT%O1AT%Rn()0AT%R0-43dBmAT%R1-33dBm,JP2-33dBM1-2-432-3ATQ(EQM),0127,70DC±10(),ATE1,01560AT#CIDn0AT#CID=0AT#CID=1DTEAT#CID=2DTEAT#CID?AT#CID=?,AT-SDR=n0AT-SDR=0RINGAT-SDR=1AT-SDR=2AT-SDR=3AT-SDR=4AT-SDR=5AT-SDR=6AT-SDR=712420.80.40.8430.40.20.40.20.84AT+MS*336:AT+MS=,,,AT+MS=11,1,300,33600336560:AT+MS=,,,,x_law,rb_signal,maxup_rateAT+MS=12,1,300,56000,33600560AT+MS?DTEAT+MS=?DTE01(bps)0V.213001V.2212002V.22bis240012003V.2312009V.329600480010V.32bis14400,12000,9600,7200480011V.3433600,31200,28800,26400,24000,21600,19200,16800,14400,12000,9600,7200,4800240012V.9056000,54667,53333,52000,50667,49333,48000,46667,45333,42667,41333,40000,38667,37333,36000,34667,33333,32000,30667,29333,28000(560)56K56flex56000,54000,52000,50000,48000,46000,44000,42000,40000,38000,36000,34000,32000(560)64Bell10330069Bell2121200x_law0=u-Law1=A-LawATZx_law0(u-Law)rb_signaling“”“”“”“”0=1=ATZrb_signaling0Maxup_rate:ModemATModemModemCOM1COM1COM3ModemATATZmodemAT&K0AT&K3RTS/CTSAT&W0modem0AT&Y0MODEM0ATDnnATD4modemAT,+++ATA,DTEATH0ATE0ATE1AT&FMODEMATS0=nMODEMMODEMnMODEMAT++++Chr(13)“Enter”HEXATE0————0D0A4145300D0AOKERRORRINGBUSYNOANSWERCONNECT9600NOCARRIERNODIALTONE“ATD”++Chr(13)MODEMMODEMCDCD“CONNECT+”MODEM“NODIALTONE”CD“BUSY”CDMODEMMODEMMODEMMODEMMODEMMODEMAT“+++”MODEM“ATH”+Chr(13)ModemCOM3, “”ModemModem8765046787650454ModemATA“”“”