Intel 537EX manual How the modem should dial the telephone number, Dial Modifiers, Echo disabled

Page 41

Data Mode AT COMMANDS

Table 18. Data Mode Command Descriptions (Continued)

Command

Default

 

Description

 

 

 

 

 

Dial Command: This command causes the modem to immediately go off-hook as an originating modem

 

 

and dial a telephone number with corresponding dial modifiers. Dial modifiers are parameters that define

 

 

how the modem should dial the telephone number.

 

 

Dial Modifiers

 

 

0–9

Dialing Digits

 

 

A, B, C,

Tone Dial Characters

 

 

D, *, #

 

 

 

P

Pulse Dial—configures the modem to use pulse dialing to dial a telephone number.

 

 

R

Reverse Originate Mode—places the modem in answer mode. This modifier should be the

 

 

 

last character in the dialing string (for example, ATDT 12345678R). After dialing the

 

 

 

telephone number, the modem goes into data modem answer mode instead of originate

 

 

 

mode.

 

 

S = n

Dial NVRAM Telephone Number—causes the modem to dial a telephone number

D

none

 

previously stored in the NVRAM with the AT&Zn=x command.

T

Tone Dial—configures the modem to use DTMF tones to dial a telephone number.

 

 

 

 

W

Wait for Dial Tone—causes the modem to look for dial tone for a specified amount of time.

 

 

 

If dial tone or the amount of time specified by the S-register, S6, times out, the modem

 

 

 

processes the next command in the dial string. If a busy signal is detected, the modem

 

 

 

responds to the DTE with a busy response code and then goes into off-line command

 

 

 

mode.

 

 

,

Pause—causes the modem to pause or delay implementing the next parameter in the dial

 

 

 

string by the time specified in S-register S8.

 

 

!

Flash Hook—causes the modem to go on-hook for 0.75 seconds.

 

 

@

Wait for Quiet Answer—causes the modem to wait for specified amount of time (S-register

 

 

 

S7) followed by 5 seconds of silence before processing the next dial modifier.

 

 

;

Return to Idle State—causes the modem to enter online command mode without initiating a

 

 

 

data modem handshake (used for phone directory auto-dialers).

 

 

<space> - ( ) Ignored by Modem—these four characters are ignored by the modem. Spaces also may be

 

 

 

included in the dial string to separate area codes and numbers.

 

 

 

 

 

Command Mode Echo: This command selects whether the modem echoes AT commands back to the

En

1

host in either online or off-line command mode.

n = 0

Echo disabled

 

 

 

 

n = 1*

Echo enabled

 

 

 

 

 

Switch Hook Control: This command controls the telephone line relay (OHREL*) and causes the

Hn

0

modem to either hang up or pick up the telephone line.

n = 0*

Hang up telephone line (go on-hook)

 

 

 

 

n = 1

Pick up telephone line (go off-hook)

 

 

 

 

NOTE: An asterisk (*) denotes the factory-default setting.

536EX Chipset Developer’s Manual

41

Intel Confidential

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Contents Developer’s Manual 537EX ChipsetIntel Confidential Contents Figures Tables 001 Initial release Revision HistoryDate Revision Description Controllerless Modem Driver Overview IntroductionWindows 95 and Windows Tapi V.90/V.92 and V.34 Data ModesUnimodem Intelsdb.VXDModem Connection Overview DTE-to-DCE Data Rates for Each Mode AT Commands OverviewDCE-to-DCE Data Rates for Each Mode DCE-to-ISP Data Rates for V.90 ModeDelayed Call Sending CommandsDTE-Modem Data Rate Response Codes Numeric TextAT Escape Sequences Command FunctionDial Modifier Dialing digitsCommand Function Default Range Reported By &Vn Data Mode Command SummaryIntel Confidential Intel Confidential Intel Confidential +ESA +EB+ESR +ETBM44/V.42/V.42 bis MNP Command Summary Processes flow control characters and passes to local Fax Class 1 Command Summary Fax Identity Command SummaryResponse Hex Code Function IS-101 Voice Command SummaryVoice DTE→DCE Character Pairs Voice DTE←DCE Character Pairs Voice DTE →DCE Character PairsDEL ESCDial Modifiers Register Function Default Range Units Reported by &VnRegister Summary AsciiRegister Function Default Range Units Modem Setup Host Modem Response Command Using AT Commands to Access the S-Registers Sn?, Sn=x, ?Modem Responses and Command Echo En, Vn, Xn, Wn, Qn DTE Disable EnableData Reporting Wn Mapping Resets and then configures the modem to Nvram user profile Product Identification Information AT Commands Product InformationEstablishing a Modem Connection A, D, DS = n, S0 Modem-to-Modem Connection Data Rates Online Command Mode Escape Codes, OnHanging Up Hn, S10, Zn, &D2 Intel Confidential Modem-on-Hold Incoming Voice Call in Data Mode Modem-on-Hold Initiating a Voice Call in Data Mode Intel Confidential Carrier Description Supported Modulation TypesLocal Analog Loopback AT&T1 Diagnostic Testing S18, &TnLocal Modem or Test Modem Local Analog Loopback With Self-Test AT&T8 Licensing Requirements for Hayes Escape Sequence AT Escape Sequences Time-Independent Escape Sequence Example Hayes* Escape Sequence Data Mode Command DescriptionsCommand Default Description Host in either online or off-line command mode Previously stored in the Nvram with the AT&Zn=x commandEcho disabled Echo enabledSn=x ATI2DTE Modem dials a telephone number touch tone dialing CommandNumeric or verbose form Numeric formSubsequent commands to be ignored DisconnectingResets the modem and recalls user profile DCD or Rlsd signalActive Profile AT&V0Stored Profile Telephone NumbersCommand to see the stored telephone number S-register configurations into the Nvram user profile ‘n’Select profile = 0-9 a B C D # * T P R W @Indication Definition Command Default+EB Nrzi encoding and decoding disabled CRC generation and checking disabledSecondary channel operation, and vice versa 12/V.34+ETBM +ESR+GSN +GMR+IFC +ILRR=m+MA? will display a list of enabled alternative modulations +MS command description= carrier,carrier,…carrier If +MS = ,0,, no alternative modulations will be availableBELL103 Carrier DescriptionBELL212 +MS=m See ‘m’+PMHF +PHSW=Value Description +PMHREnable Short Phase 1 and Short Phase Conjunction with the +PSS commandEnable Short Phase Disable short Phase 1 and Short PhaseOperating Modes Mode Features+ES Settings Answer Modem 44/V.42/V.42 bis and MNP Data Modem Command DescriptionsResulting +ES Connection Types +ES=1, 0 +ES=4, 4 +ES=3, 0 +ES=3, 2\Bn \Kn Direction +DR=m+DS=m Max string+EFCS=m 3768Decimal value and the format is as follows Display messages when +ER =+ER=m +ER LapmControl during non-error control operation Setting is ignored if origrqst=6Non-error control operation +ES=mFax Class 1 Commands Fax Identity CommandsFax Identity Command Descriptions +FMFR?/+FMIValue Modulation Speed bps Mod Selection TableClass 1 DTE-Generated Hdlc Frame Information AT+FTH=mod 30 Hdlc Frame Format+FCLASS Fax Mode Command Descriptions+FCLASS? +FRS=m +FRH=m+FTH=m IS-101 Voice Mode AT Commands Relay Control Voice Mode Command DescriptionsDtmf Detection Reporting +FLO=m +VDR=m See ‘m’ Enable report FunctionCaller ID report Command Reserved Distinctive ringing All Defaults = ‘C’, BB860980, BFE63883, BB863EE0Event Description +VEM=m See ‘m’HEX Digit Location EIGHT-DIGIT HEX Code B B 8 6 3 E EEX Value BIT Value Event +VIP Local telephone, or speaker128 Nominal transmit level +VLS=m Preassigned Voice I/O LabelsLabel Primitive Code Description Voice I/O Primitive CodesRelay/Playback Control +VSD=m See ‘m’ +VRX141 AD3 3-bit Adaptive differential pulse code modulation +VSM=? command to obtain supported sampling rates+VSM=m Range 4800, 7200, 8000, and 11025 samples/secondSerial CmlHard Disk Compression100 Default value 1 second Factory default is ‘0’100 Range 5-255 units of 0.01 seconds+VTS=m None Dual tones may be sent using the following formatSpecified by +VTD=m This sends a 500 ms period of silenceCommand Default Description Register Command Descriptions S10 S16 Range Seconds Default 0 secondsEscape sequences S22 118 S21S25 S30Modem or when a ring signal is detected Modem exits sleep mode whenever the host reads or writes toSleep mode is disabled by setting S33 to ‘0’ Inactive state whenTag Description Caller ID Tags for Formatted ReportingRing Uart Emulation in Intelsdb.VxD Uart Emulation in the Controllerless ModemRBR UartTHR Parallel Host Interface Uart Register Bit Assignments Modem Status Register MSR Uart Register DefinitionsScratch Register SCR OE Overrun Error-Not supported Bit Framing errorLine Status Register LSR StackProcedure is as follows IER Interrupt Enable registerModem Control Register MCR Line Control Register LCRBit Fifo Control Register FCRID1 ID0 Interrupt Identity Register IIRInterrupt Control Functions ID bit 2 for Fifo mode Interrupt Enable Register IERTransmitter Holding Register THR Dlab =Divisor Latch Registers DLM and DLL Receiver Buffer Register RBRProgrammable Data Rates Data Rate Divisor Number Divisor Latch HexFifo Polled Mode Operation Fifo Interrupt Mode Operation16C550A Uart Fifo Operation 102536EX Chipset Developer’s Manual 103
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