Intel 537EX manual Command Default Description

Page 84

IS-101 Voice Mode AT Commands

Table 25. Voice Mode Command Descriptions (Continued)

Command

Default

 

Description

 

 

 

 

 

DTMF and Tone Generation: (cont.)

 

 

3. Single DTMF tones or hook flashes are sent enclosed in braces “{ }”. A duration must be included,

 

 

as the duration set in +VTD=m does not apply.

 

 

Use the following format:

 

 

AT+VTS={<DTMF or !>,<duration>}

 

 

For example: AT+VTS={2,30}

 

 

This command sends DTMF tone 2 with a duration of 300 ms.

 

 

For example: AT+VTS={!,50}

 

 

This command sends a hook flash with a duration of 500 ms.

 

 

Send multiple DTMF signals and tones by combining elements in a given +VTS=m command

 

 

string.

 

 

 

For example:

 

 

AT+VTS={!,30}, 1, 2, [1000,1300,50], !, {*,6}, [1000], 9

+VTS=m

none

This command line programs the following events:

(cont.)

1. Hook-flash with a duration of 300 ms.

 

 

 

2.

Send DTMF 1 for the duration specified by +VTD command.

 

 

3.

Send DTMF 2 for the duration specified by +VTD command.

 

 

4.

Send tone pair 1000 Hz and 1300 Hz for a duration of 500 ms.

 

 

5.

Hook-flash with a duration specified by +VTD command.

 

 

6.

Send DTMF * for a duration of 60 ms.

 

 

7.

Send tone 1000 Hz for a duration specified by the +VTD command.

 

 

8.

Send DTMF 9 for the duration specified by +VTD command.

 

 

For example:

 

 

AT+VTS=1, [, ,50], 2, [ ], 9

 

 

This command line programs the following events:

 

 

1.

Send DTMF 1 for the duration specified by +VTD command.

 

 

2.

Play silence for a duration of 500 ms.

 

 

3.

Send DTMF 2 for the duration specified by +VTD command.

 

 

4.

Play silence for a duration specified by +VTD command.

 

 

5.

Send DTMF 9 for the duration specified by +VTD command.

 

 

 

 

 

Play Mode: This command causes the modem to start voice transmission (playback mode) and play

 

 

back a previously recorded voice message.

 

 

Upon receiving the AT+VTX command, the modem responds to the DTE with a ‘CONNECT’ message

 

 

at the current DTE-to-modem rate. It is important that the UARTs DTE-to-modem rate be equal to or

 

 

higher than the compression-scheme-required UART data rate (for example, CL1 at 4800 samples/

 

 

second requires 57,600 bps). If the DTE-to-modem data rate is lower than the compression-scheme-

 

 

required UART data rate, then data may be lost or the playback message may be garbled. After

 

 

receiving the ‘CONNECT’ message, the DTE then sends the voice file to the modem. To ensure that

 

 

data is not overwritten, the modem provides both hardware or software flow control with AT+FLO=m.

 

 

The modem also buffers the data to ensure steady voice delivery, even though the voice data may be

 

 

transferred from the DTE in bursts.

+VTX

none

Playing mode is terminated when the data is exhausted and the modem receives the two terminating

characters <DLE><ETX> from the DTE. Upon detecting <DLE><ETX>, the modem issues an ‘OK’ result

 

 

 

 

code. After the modem’s internal buffer is empty, it returns to the command mode.

 

 

To abort playback mode immediately without waiting for the modem to empty its internal buffer, send

 

 

<DLE><CAN><DLE><ETX>.The modem aborts playback mode immediately in two other situations:

 

 

during a AT+VIT=m time-out or a DTR toggle. The modem immediately aborts playback mode if

 

 

+VIT≠0 and the modem has not received any data or if the modem receives a <DLE><NUL> code

 

 

before the +VIT timer time-out. The modem then hangs up the line and switches to data mode

 

 

(+FCLASS=0). If the UART DTR signal is toggled from on-off-on, then the modem follows the &Dn

 

 

setting. If configured for &D2 or &D3, then the modem immediately aborts playback mode, hangs up

 

 

the line, and switches to data mode (+FCLASS=0).

 

 

NOTE: The voice sampling rate and sampling mode must be the same values used during record

 

 

mode.

 

 

 

 

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

 

 

 

 

84

536EX Chipset Developer’s Manual

Intel Confidential

Page 83 Page 85
Image 84
Page 83 Page 85
Contents 537EX Chipset Developer’s ManualIntel Confidential Contents Figures Tables Revision History Date Revision Description001 Initial release Introduction Controllerless Modem Driver OverviewWindows 95 and Windows V.90/V.92 and V.34 Data Modes TapiUnimodem Intelsdb.VXDModem Connection Overview AT Commands Overview DTE-to-DCE Data Rates for Each ModeDCE-to-DCE Data Rates for Each Mode DCE-to-ISP Data Rates for V.90 ModeSending Commands Delayed CallDTE-Modem Data Rate Response Codes Numeric TextCommand Function AT Escape SequencesDial Modifier Dialing digitsData Mode Command Summary Command Function Default Range Reported By &VnIntel Confidential Intel Confidential Intel Confidential +EB +ESA+ESR +ETBM44/V.42/V.42 bis MNP Command Summary Processes flow control characters and passes to local Fax Identity Command Summary Fax Class 1 Command SummaryIS-101 Voice Command Summary Voice DTE→DCE Character PairsResponse Hex Code Function Voice DTE →DCE Character Pairs Voice DTE←DCE Character PairsDEL ESCRegister Function Default Range Units Reported by &Vn Dial ModifiersRegister Summary AsciiRegister Function Default Range Units Using AT Commands to Access the S-Registers Sn?, Sn=x, ? Modem Responses and Command Echo En, Vn, Xn, Wn, QnModem Setup Host Modem Response Command Disable Enable Data Reporting Wn MappingDTE Resets and then configures the modem to Nvram user profile AT Commands Product Information Establishing a Modem Connection A, D, DS = n, S0Product Identification Information Online Command Mode Escape Codes, On Hanging Up Hn, S10, Zn, &D2Modem-to-Modem Connection Data Rates Intel Confidential Modem-on-Hold Incoming Voice Call in Data Mode Modem-on-Hold Initiating a Voice Call in Data Mode Intel Confidential Supported Modulation Types Carrier DescriptionDiagnostic Testing S18, &Tn Local Analog Loopback AT&T1Local Analog Loopback With Self-Test AT&T8 Local Modem or Test ModemAT Escape Sequences Time-Independent Escape SequenceLicensing Requirements for Hayes Escape Sequence Example Data Mode Command Descriptions Command Default DescriptionHayes* Escape Sequence Previously stored in the Nvram with the AT&Zn=x command Host in either online or off-line command modeEcho disabled Echo enabledATI2 DTESn=x Command Modem dials a telephone number touch tone dialingNumeric or verbose form Numeric formDisconnecting Subsequent commands to be ignoredResets the modem and recalls user profile DCD or Rlsd signalAT&V0 Active ProfileStored Profile Telephone NumbersS-register configurations into the Nvram user profile ‘n’ Command to see the stored telephone numberSelect profile = 0-9 a B C D # * T P R W @Command Default Indication Definition+EB CRC generation and checking disabled Nrzi encoding and decoding disabledSecondary channel operation, and vice versa 12/V.34+ESR +ETBM+GMR +GSN+IFC +ILRR=m+MS command description +MA? will display a list of enabled alternative modulations= carrier,carrier,…carrier If +MS = ,0,, no alternative modulations will be availableCarrier Description BELL103BELL212 +MS=m See ‘m’+PHSW= +PMHFValue Description +PMHRConjunction with the +PSS command Enable Short Phase 1 and Short PhaseEnable Short Phase Disable short Phase 1 and Short PhaseMode Features Operating Modes44/V.42/V.42 bis and MNP Data Modem Command Descriptions +ES Settings Answer ModemResulting +ES Connection Types +ES=1, 0 +ES=4, 4 +ES=3, 0 +ES=3, 2\Bn \Kn +DR=m Direction+DS=m Max string3768 +EFCS=mDisplay messages when +ER = Decimal value and the format is as follows+ER=m +ER LapmSetting is ignored if origrqst=6 Control during non-error control operationNon-error control operation +ES=mFax Identity Commands Fax Class 1 CommandsFax Identity Command Descriptions +FMFR?/+FMIMod Selection Table Value Modulation Speed bps30 Hdlc Frame Format Class 1 DTE-Generated Hdlc Frame Information AT+FTH=modFax Mode Command Descriptions +FCLASS?+FCLASS +FRH=m +FRS=m+FTH=m IS-101 Voice Mode AT Commands Voice Mode Command Descriptions Dtmf Detection ReportingRelay Control +FLO=m Enable report Function +VDR=m See ‘m’Defaults = ‘C’, BB860980, BFE63883, BB863EE0 Caller ID report Command Reserved Distinctive ringing AllEvent Description +VEM=m See ‘m’EIGHT-DIGIT HEX Code B B 8 6 3 E E EX Value BIT Value EventHEX Digit Location Local telephone, or speaker 128 Nominal transmit level+VIP Preassigned Voice I/O Labels Label+VLS=m Voice I/O Primitive Codes Relay/Playback ControlPrimitive Code Description +VRX +VSD=m See ‘m’+VSM=? command to obtain supported sampling rates 141 AD3 3-bit Adaptive differential pulse code modulation+VSM=m Range 4800, 7200, 8000, and 11025 samples/second Cml Serial Hard Disk CompressionFactory default is ‘0’ 100 Default value 1 second100 Range 5-255 units of 0.01 secondsDual tones may be sent using the following format +VTS=m NoneSpecified by +VTD=m This sends a 500 ms period of silenceCommand Default Description Register Command Descriptions S10 Range Seconds Default 0 seconds Escape sequencesS16 S21 S22 118S25 S30Modem exits sleep mode whenever the host reads or writes to Modem or when a ring signal is detectedSleep mode is disabled by setting S33 to ‘0’ Inactive state whenCaller ID Tags for Formatted Reporting Tag DescriptionRing Uart Emulation in the Controllerless Modem Uart Emulation in Intelsdb.VxDUart THRRBR Parallel Host Interface Uart Register Bit Assignments Uart Register Definitions Scratch Register SCRModem Status Register MSR Bit Framing error OE Overrun Error-Not supportedLine Status Register LSR StackIER Interrupt Enable register Procedure is as followsModem Control Register MCR Line Control Register LCRFifo Control Register FCR BitInterrupt Identity Register IIR Interrupt Control FunctionsID1 ID0 Interrupt Enable Register IER ID bit 2 for Fifo modeTransmitter Holding Register THR Dlab =Receiver Buffer Register RBR Divisor Latch Registers DLM and DLLProgrammable Data Rates Data Rate Divisor Number Divisor Latch HexFifo Interrupt Mode Operation Fifo Polled Mode Operation16C550A Uart Fifo Operation 102536EX Chipset Developer’s Manual 103
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