Intel 536EX manual IS-101Voice Mode AT Commands, Intel Confidential

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IS-101 Voice Mode AT Commands

IS-101 Voice Mode AT Commands

IS-101 Voice Mode AT Commands

6

The 536EX chipsets implement a voice mode AT command set that allows a DTE to record and play back voice messages. This product is compatible with the EIA/TIA IS-101 voice command set. This section lists supported commands and a detailed description of each command (see Table 25 on page 71). When multiple commands are placed on a line, a semicolon (;) must be placed after each voice (and fax) command.

Note: To originate a call, to answer, and to hang up, use the ATD, AT+VLS≠0, and AT+VLS=0 commands, respectively.

Each command may be used as follows:

+V<command>?

Read

current setting

+V<command> = ?

Read

permissible settings

+V<command> = <parameter> Set parameter

For example, AT+FCLASS? determines whether the modem is configured for data (or fax) mode or voice mode. AT+FCLASS=? determines which data/fax/voice modes are supported by the modem. AT+FCLASS=m switches between voice mode and data mode.

The modem exchanges streams of data with the DTE while executing the commands for voice playback (AT+VTX) and record (AT+VRX) and while in voice command mode (with either the modem being off-hook or using the local phone—AT+VLS=m). In these modes, the DCE searches for DTMF, calling tone, and dial tones and reports them to the DTE whenever they are detected. Detection information and data stream terminators are passed between the DTE and DCE by first sending an ASCII <DLE> character ($10h) followed by a special character. Special characters in the data stream are used as follows:

any data ... <DLE><ETX>

end of

data stream

 

any data ... <DLE><DLE>

single

10h<DLE> in

data stream

any

data ... <DLE><X>

X is a

special character,

delete both <DLE> and X from

 

 

 

the

data stream

 

 

 

When the DTE transfers data to the modem during playback mode (AT+VTX command), the DTE must insert a <DLE> for each <DLE> in the original data stream. When data is no longer available, the DTE must add the stream terminator <DLE><ETX> to the end of the data stream. If the modem detects the two terminating characters <DLE><ETX> within the data stream, it transmits the data immediately to the remote modem without waiting for the buffer to fill up. To abort playback mode without waiting for the modem to empty the internal modem buffer, send <DLE><CAN><DLE><ETX>. Immediately aborting the playback mode eliminates long delays between receiving a DTMF tone or keyboard abort and starting a new function such as playing back or recording a new message.

When the modem transfers data to the DTE during record mode (AT+VRX command), the DTE must filter the data stream by removing all character pairs beginning with <DLE>. The DTE also must recognize <DLE><ETX> as the stream terminator. Upon detecting <DLE><DLE>, the DTE must reinsert a single <DLE> in its place. The modem buffers up to 512 bytes of voice data received from the SAFE analog-to-digital converters if the DTE cannot read the data immediately.

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536EX Chipset Developer’s Manual

Intel Confidential

Page 69 Page 71
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Page 69 Page 71
Contents Developer’s Manual 536EX ChipsetJanuary Intel Confidential 536EX Chipset Developer’s ManualContents ContentsFigures Tables Revision Revision HistoryDate DescriptionIntroduction 1.1Controllerless Modem Driver OverviewUser applications Figure 1. WDM Driver Block Diagram1.1.2Windows 95 and Windows Kernel - ring0Figure 2. VxD Mini Port Driver Block Diagram 1.2V.90/V.92 and V.34 Data Modes1.3Modem Connection Overview Table 2. DCE-to-DCEData Rates for Each Mode Table 1. DTE-to-DCEData Rates for Each ModeTable 3. DCE-to-ISPData Rates for V.90 Mode 1.4.1Sending Commands Table 4. DTE-ModemData Rate Response Codes1.4.2AT Escape Sequences 1.4.3Dial ModifierAT Command Summary Tables AT Command Summary TablesTable 5. Data Mode Command Summary Table 5. Data Mode Command Summary Continued Result code type Intel Confidential Generate data mode calling tone Table 6. V.44/V.42/V.42 bis MNP Command Summary connect state, transmits Table 7. Fax Identity Command Summary Table 8. Fax Class 1 Command SummaryTable 9. IS-101Voice Command Summary Table 10. Voice DTE→DCE Character PairsTable 10. Voice DTE→DCE Character Pairs Continued Table 11. Voice DTE←DCE Character PairsTable 12. Dial Modifiers Table 11. Voice DTE←DCE Character Pairs ContinuedTable 13. S-RegisterSummary Table 13. S-RegisterSummary Continued Data Mode AT COMMANDS Data Mode AT COMMANDSATW0 Table 14. Data Reporting Wn MappingFigure 3. Example of a Remote Connection •ATW2Intel Confidential +FMFR?, +FMDL?, +FREV? 3.7Hanging Up Hn, S10, Zn, &D2 3.6Online Command Mode Escape Codes, On3.8Modem-to-ModemConnection Data Rates Intel Confidential +VCID=1 +PMH=0+PCW=0 +++ATIntel Confidential hook to connect the call. Now you can answer the phone and talk. After completing your voice conversation, the modem will issue another +PMHF and ATO command to initiate a Quick Connect. If the server rejects the request to go on hold, the user can stay on line ATO command issued or disconnect from his initial data connection ATH command issued Table 16. Supported Modulation Types 3.9Diagnostic Testing S18, &Tn 3.9.1Local Analog Loopback AT&T1Figure 6. Local Analog Loopback Test 3.9.2Local Analog Loopback With Self-TestAT&T8LOCAL MODEM Local Modem or Test Modem3.10.1Time-IndependentEscape Sequence Licensing Requirements for Hayes Escape SequenceFormat <char1><char2><char3><AT command><contents of S3>char1 = char2 = char3 = escape character S2 Table 18. Data Mode Command Descriptions 3.10.2Hayes* Escape SequenceIntel Confidential Sn=x Intel Confidential Data Mode AT COMMANDS536EX Chipset Developer’s Manual Intel Confidential AT&V0 Intel Confidential Indication Command DefaultDefinition 1, 0, Intel Confidential +ETBM +ESR1, 1, +IFC +GMR+GSN +ILRR=mmodulations +MS=m <carrier>Description see ‘m’<value> +PHSW=+PMHF +PMHRIntel Confidential Error Correction and Data Compression Error Correction and Data Compression4Table 19. Operating Modes Table 20. Resulting +ES Connection Types NOTESIntel Confidential Error Correction and Data Compression536EX Chipset Developer’s Manual Intel Confidential +DS=m +DR=mdirection <max string>3768 +EFCS=m+ER=m +ES=m 5.2Fax Class 1 Commands Fax Class 1 AT Commands5.1Fax Identity Commands Fax Class 1 AT CommandsTable 23. <mod> Selection Table Figure 8. T.30 HDLC Frame Format Table 24. Fax Mode Command Descriptions Refer to Table 23 on page Table 24. Fax Mode Command Descriptions Continued+FRH=m shown in Table 23 on page+FTH=m IS-101Voice Mode AT Commands IS-101Voice Mode AT Commands6.1DTMF Detection Reporting Table 25. Voice Mode Command Descriptions6.2Relay Control +FLO=m m = <deassert>, <assert>m=<enable>, <report> +VDR=mm = <mask> +VEM=mIntel Confidential +VIP Preassigned Voice I/O Labels +VLS=mVoice I/O Primitive Codes Relay/Playback Control: contm = <sds>, <sdi> +VRX+VSD=m +VSM=m m= <cml>, <vsr>, <scs>, <sel>Transmission: Range: Compression Method Selection: cont +VSP=mfactory default is ‘0’ +VTS=m noneDescription CommandDefault DTMF and Tone Generation: contTable 26. S-RegisterCommand Descriptions S-RegistersS-Registers S-Registers Intel Confidential536EX Chipset Developer’s Manual S-Registers Intel Confidential536EX Chipset Developer’s Manual S-Registers Intel Confidential536EX Chipset Developer’s Manual S-Registers Caller ID Caller IDTable 27. Caller ID Tags for Formatted Reporting <DLE> R RING DATE = TIME = NMBR = NAME = DOE JOHN MESG =RING RING NMBR =Parallel Host Interface 16C450/16C550A UART Parallel Host Interface 16C450/16C550AUART Figure 11. UART Emulation in Intelsdb.VxDUART Transmitter Flow Diagram UART Receiver Flow DiagramADDRESS REGISTERBIT NUMBER NAMEFigure 14. Scratch Register SCR 9.2.1Scratch Register SCR9.2.2Modem Status Register MSR Figure 15. Modem Status Register MSR9.2.3Line Status Register LSR Figure 16. Line Status Register LSRFigure 17. Modem Control Register MCR 9.2.4Modem Control Register MCR9.2.5Line Control Register LCR Figure 18. Line Control Register LCRRegister 9.2.6FIFO Control Register FCRFigure 19. FIFO Control Register FCR Figure 20. Interrupt Identity Register IIR 9.2.7Interrupt Identity Register IIRTable 28. Interrupt Control Functions 9.2.9Transmitter Holding Register THR 9.2.8Interrupt Enable Register IERFigure 21. Interrupt Enable Register IER Figure 22. Transmitter Holding Register THRFigure 23. Receiver Buffer Register RBR 9.2.10Receiver Buffer Register RBR9.2.11Divisor Latch Registers DLM and DLL Figure 24. Divisor Latch Registers DLM and DLL9.3.1FIFO Interrupt Mode Operation 9.316C550A UART FIFO Operation9.3.2FIFO Polled Mode Operation Parallel Host Interface 16C450/16C550A UART Intel Confidential536EX Chipset Developer’s Manual
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