Lucent Technologies Host-Based Controller Modem AT S21 24/General Bit Mapped Options Status, S28

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0, 5—65 10
V.34 Modulation Enable/Disable

Host-Based Controller Modem

Data Addendum

AT Command Set

June 15, 1998

 

 

AT Commands Reference S-Registers (continued)

 

S21

V.24/General Bit Mapped Options Status

 

Indicates the status of command options. Only bits 3, 4 and 5 are used, read-only.

 

 

Bits 3-4

DTR behavior (&Dn)

 

 

0

= &D0 selected

 

 

1

= &D1 selected

 

 

2

= &D2 selected (Default)

 

 

3

= &D3 selected

 

 

Bit 5

DCD behavior (&Cn)

 

 

0

= &C0 selected

 

 

1

= &C1 selected (Default)

 

 

Default:

48 (00110000b)

 

S22

Results Bit Mapped Options Status

 

Indicates the status of command options. Only bits 4, 5 and 6 are used, read only.

 

 

Bits 4-6

result codes (Xn)

 

 

0

= X0 selected

 

 

4

= X1 selected

 

 

5

= X2 selected

 

 

6

= X3 selected

 

 

7

= X4 selected (Default)

 

 

Bit 7

Pulse dial make/break ratio (&Pn)

 

 

0

= 33/67 make/break ratio (&P1, &P2) (Default)

 

 

1

= 39/61 make/break ratio (&P0)

 

 

Default:

112 (01110000b)

 

S24

Timer to Control Sleep Mode

 

This command displays the number of seconds of inactivity (no characters sent from the DTE, no RING) in the off-line command state before the modem places itself into standby mode. A value of zero prevents standby mode. S24 is an alias for S89.

Note: If a number between 1 and 4 is entered for this register, it will set the value to 5, and the inactivity before standby will be 5 seconds. This is done for compatibility with previous products which allowed time-outs down to 1 s.

Range:

Default:

S28

This register enables/disables V.34 modulation. 0 = disabled, 1 = enabled

Range:

0 —1

Default:

1

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Lucent Technologies Inc.

Version 1.0

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Contents Contents IntroductionAT Command Summary AT Command Set Summary Description#UD AT Testing and Debugging Command Set Summary DescriptionS-Register Summary Default Description Result Code Summary NoEC-No error control protocol AT Commands Reference DnDial Echo CommandOnline Data Character Echo Command Mars Otherwise Hook ControlRequest ID Information Lapm Modulation Handshake Monitor Speaker VolumeMonitor Speaker Mode Return On-line to Data Mode Select Pulse DialingResult Code Control VnDCE Response FormatResult Code Option Result Code Selection and Call Progress MonitoringExt. Result Code Dial Tone Detect Busy Tone Detect Extended Result CodesOK Error Long Space DisconnectRecall Stored Profile Auto RetrainFn Load Factory Settings Dn DTR ControlGn V.22bis Guard Tone Control Auxiliary Relay optionAsynchronous Communications Mode Qn Asynchronous Communications ModeLocal Flow Control Selection Pulse Dial Make-to-Break Ratio SelectionData Set Ready DSR Option Self-Test CommandsConnect Error View Active Configuration and Stored Profile SSEStore Current Configuration YnSelect Stored Profile for Hard ResetZn=x Store Telephone Number \An\Kn Break Control Bits/s Rate Adjusted\Nn Error Control Mode Selection \N3 \Tn Inactivity Timer \Vn Protocol Result Code\Xn XON/XOFF Pass Through Data Calling ToneView Numbers in Blacklist En Enable/Disable Auto-Retrain and Fallback/Fall Forward Cn Data Compression ControlTest and Debug AT Commands Diag AT#UD Last Call Status Report FormatCall Setup Result Codes GstnModulationSchemeActive from 3.7.2/V.58ErrorControl Active from 3.5.2/V.58 Value Description CompressionActive from 3.2.2/V.58 Value DescriptionCallCleared codes from 3.6.4/V.58-1994 Value Description ImplementedDteHangupCommand AT Commands Reference S-Registers S3Command Line Termination Character user definedAuto Answer Ring Number AT Escape Character user definedConnection Completion Time-Out Command Line Editing Character user definedResponse Formatting Character user defined Comma Dial Modifier Time S10S11 S12 Escape Guard TimeS24 Timer to Control Sleep Mode S21 24/General Bit Mapped Options StatusS22 Results Bit Mapped Options Status S28S30 Inactivity Timer S32 Synthetic Ring VolumeS33 Synthetic Ring Frequency S35S42 Auto Rate default 1, range 0 ¾1 S38 K56flex Downstream RateS43 Auto Mode default 1, range 0¾1 S48 Lapm Error Control and Feature Negotiation defaultS48 S48 = S89Command Description AT FAX Command Set Class 1 FAXAT FAX Command Set Summary AT FAX Commands Reference +FRM=m Receive FAX Data with m Carrier Command Option Modulation Speed bits/s+FTM=m Transmit FAX Data with m Carrier +FTH=m Transmit Hdlc Data with m Carrier +FRH=m Receive Hdlc Data with m CarrierFPR +FAA Adaptive answer Manufacturer Identification +FMIResult Lucent Data/Fax Product Identification +FMMAT Voice Command Set AT Voice Command SetVoice Commands AT Voice Command Set Not Defined In IS-101 SpecificationAT Voice Commands Reference AT+VIT = Timer DTE/DCE Inactivity Timer AT+VGR=gainAT+VEM=mask Event Reporting and Masking AT+VNH = Hook Automatic Hang-up ControlAT+VLS=label Analog Source/Destination Selection AT+VTD=durAT+VTS=string Start voice transmission and reception processAT+VSM=? AT+VSD=sds, sdi Silence Detection Quiet and SilenceAT+VSM? AT+VRA=interval Ringback Goes Away Timer AT+VRN=interval Ringback Never Appeared TimerAT+VPR=rate Select DTE/DCE Interface Rate Events Reported to the DTEAT+VTS= DLE H ATDATH AT+VLS=7AT+VLS=5 Example # 2 Initiating a stored number speakerphone call Example # 3 Answering a speakerphone call RingAT+FCLASS=1 ATAExample # 6 Switching from speakerphone mode to TAD mode AT+FCLASS=0Connect AT+VLS=1DLE-R Modem answers call AT Dsvd Commands 25ter AT Commands 25ter AT CommandsManufacturer Identification +GMI? Version / Revision Information +GMR?V8o, v8a, and v8cf +ES=? AT Commands+ES? Idle,,,crctype,nrzien +ESA=?+ITF= off, on +ITF=?AT Commands for Homologation Testing and Debugging Version Country Codes CountryCode in HEX USAAT%T21,par#,paramvalue Pulse dial make time 255 ATA, ATD ATD , ATXATB ATH1Homologation Parameters Par # Parameter Description Range ReferenceVersion 150 255 100 120 255 0x00 0x12 0x10 0x88 0x80 0x06 0x0c 0x6b 0xaa Par. # Australia Belgium Denmark Finland France Germany 120 100 255 0x10 0x12 Par. # Netherlands Italy Norway Spain150 100 250 255 0x12 0x10 0x00 0x88 0x06 0x0c 0x80 Par. # Austria Japan China Korea Malaysia Singapore 150 250 255 Portugal Hong Kong 150 255 Version Par. # Canada Mexico India Vietnam Philippines 000 004 002 050 140 S10 020 S11 095 090 S30 S35 001 000 003 002 004 035 050 S10 020 S11 095 090 S30 S35 001 OK ATZ OK ATS11? 085 OK ATZXX-XXXDMOD

Host-Based Controller Modem AT specifications

Lucent Technologies Host-Based Controller Modem AT represents a significant advancement in modem technology, particularly in the realm of telecommunications and data transmission. This modem, renowned for its efficiency and versatility, is characterized by a host-based architecture, which differentiates it from traditional modems that rely heavily on dedicated hardware.

One of the main features of the Lucent Technologies Host-Based Controller Modem AT is its ability to leverage the processing power of the host computer. By utilizing the host's CPU for data encoding and decoding tasks, the modem can reduce the need for specialized hardware components, allowing for a more cost-effective solution. This design not only facilitates lower manufacturing costs but also enhances the overall performance due to the utilization of the host's computational capabilities.

Another notable characteristic is its compliance with the AT command set, which standardizes communications between the modem and the host system. This ensures compatibility with a wide range of software applications and operating systems. The AT command set allows users to control modem functions easily, making it simpler to configure settings, initiate connections, and manage data transfer processes.

The modem also supports various communication protocols, such as V.90 and V.92, enabling high-speed data transmission over traditional telephone lines. With download speeds of up to 56 Kbps and upload speeds of up to 48 Kbps, the Lucent Technologies Host-Based Controller Modem AT is particularly suitable for Internet browsing, email, and other online activities demanding robust data throughput.

Additionally, the modem features built-in error correction and data compression protocols, such as V.42 and V.44, further enhancing the quality and speed of data transmission. These protocols help minimize the impact of line noise and ensure efficient use of bandwidth, leading to improved connection stability and data integrity.

In terms of connectivity, the Lucent Technologies Host-Based Controller Modem AT typically interfaces via a standard serial or USB port, making it compatible with most modern computers. Its compact design and ease of installation make it an appealing choice for both personal and professional use.

Overall, the Lucent Technologies Host-Based Controller Modem AT showcases significant innovation in modem technology, offering users a reliable and efficient solution for high-speed data communications. Its host-based architecture, adherence to the AT command set, and support for advanced communication protocols position it as a vital tool in the ever-evolving landscape of digital connectivity.
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