Lucent Technologies Host-Based Controller Modem AT specifications Lapm

Page 9

Data Addendum

Host-Based Controller Modem

June 15, 1998

AT Command Set

 

 

AT Command Reference (continued)

 

The ATI11 result has two pages; the user must hit a key to get the second page. See the following example: ati11

 

Description

 

K56flex connection

V.90 Connection

 

---------------

 

------------------

---------------

1

Last Connection

 

56K

V.90

2

Initial Transmit Carrier Rate

28800

28800

3

Initial Receive Carrier Rate

50000

49333

4

Final

Transmit Carrier Rate

28800

28800

5

Final

Receive Carrier Rate

50000

49333

6

Protocol Negotiation Result

LAPM

LAPM

7

Data Compression Result

 

V42bis

V42bis

8

Estimated Noise Level

 

152

152

9

Receive Signal Power Level (-dBm) 25

25

10

Transmit Signal Power Level (-dBm) 16

16

11

Round Trip Delay

(msec) 4

4

Press any key to continue; ESC to quit.

 

 

12

Near Echo Level

(-dBm)

NA

NA

13

Far Echo Level

(-dBm)

NA

NA

14

Transmit Frame Count

 

3

3

15

Transmit Frame Error Count

0

0

16

Receive Frame Count

 

0

0

17

Receive Frame Error Count

0

0

18

Retrain by Local Modem

 

0

0

19

Retrain by Remote Modem

0

0

20

Call Termination Cause

 

0

0

21

Robbed-Bit Signaling

 

00

00

22

Digital Loss

(dB)

6

6

23

Remote Server ID

 

4342C3

NA

OK

The ATI11 command may be issued from on-line command mode or after the end of a call. After a call, some of the values are no longer valid; it's useful to know which ones.

Each of the line items in the ATI11 result is explained next:

1.V.90, 56K, V.34, or V.32 depending on the type of connection negotiated.

2.Initial upstream rate

3.Initial downstream rate

4.Current or final upstream rate

5.Current or final downstream rate

6.LAPM or MNP or None, depending on V.42 negotiation

7.V42bis or MNP or None, depending on V.42 negotiation

8.Mean-square error of received downstream signal. Difference between received constellation point and reference decision point. This is a dimensionless decimal number, only valid during a call. Higher numbers are worse. There's no absolute threshold of godness; it depends on the downstream data rate. The number varies during a call, so it can be useful to sample it a few times.

9.The received signal power, although labeled -dBm, is only a relative measure for comparing calls to/from different locations. Only valid during a call.

10.Upstream transmit signal power.

11.Round-trip delay in milliseconds.

12.Echo levels are valid for V.34 only.

13.Echo levels are valid for V.34 only.

14.Number of LAPM frames sent upstream during this call. Count wraps around at 65535.

15.Number of REJ frames received at the analog client modem.

16.Number of LAPM frames received by client during this call. Count wraps around at 65535.

17.Number of frames received in error by the client.

18.Number of retrains or rate renegotiations requested by this modem.

19.Number of retrains or rate renegotiations requested by remote modem.

Version 1.0

Lucent Technologies Inc.

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Contents Introduction ContentsAT Command Set Summary Description AT Command SummaryAT Testing and Debugging Command Set Summary Description S-Register Summary Default Description#UD Result Code Summary NoEC-No error control protocol AT Commands Reference Echo Command Online Data Character Echo CommandDnDial Otherwise Hook Control Request ID InformationMars Lapm Monitor Speaker Volume Monitor Speaker ModeModulation Handshake Select Pulse Dialing Return On-line to Data ModeResult Code Control VnDCE Response FormatResult Code Selection and Call Progress Monitoring Result Code OptionExt. Result Code Dial Tone Detect Busy Tone Detect Extended Result CodesLong Space Disconnect OK ErrorRecall Stored Profile Auto RetrainDn DTR Control Fn Load Factory SettingsGn V.22bis Guard Tone Control Auxiliary Relay optionQn Asynchronous Communications Mode Asynchronous Communications ModeLocal Flow Control Selection Pulse Dial Make-to-Break Ratio SelectionSelf-Test Commands Connect ErrorData Set Ready DSR Option SSE View Active Configuration and Stored ProfileYnSelect Stored Profile for Hard Reset Store Current ConfigurationZn=x Store Telephone Number \AnBits/s Rate Adjusted \Nn Error Control Mode Selection\Kn Break Control \N3 \Vn Protocol Result Code \Tn Inactivity Timer\Xn XON/XOFF Pass Through Data Calling ToneView Numbers in Blacklist Cn Data Compression Control En Enable/Disable Auto-Retrain and Fallback/Fall ForwardTest and Debug AT Commands AT#UD Last Call Status Report Format DiagGstnModulationSchemeActive from 3.7.2/V.58 Call Setup Result CodesCompressionActive from 3.2.2/V.58 Value Description ErrorControl Active from 3.5.2/V.58 Value DescriptionCallCleared codes from 3.6.4/V.58-1994 Value Description ImplementedDteHangupCommand S3Command Line Termination Character user defined AT Commands Reference S-RegistersAuto Answer Ring Number AT Escape Character user definedCommand Line Editing Character user defined Response Formatting Character user definedConnection Completion Time-Out S10 Comma Dial Modifier TimeS11 S12 Escape Guard TimeS21 24/General Bit Mapped Options Status S24 Timer to Control Sleep ModeS22 Results Bit Mapped Options Status S28S32 Synthetic Ring Volume S30 Inactivity TimerS33 Synthetic Ring Frequency S35S38 K56flex Downstream Rate S42 Auto Rate default 1, range 0 ¾1S48 Lapm Error Control and Feature Negotiation default S43 Auto Mode default 1, range 0¾1S48 S48 = S89AT FAX Command Set Class 1 FAX AT FAX Command Set SummaryCommand Description AT FAX Commands Reference Command Option Modulation Speed bits/s +FTM=m Transmit FAX Data with m Carrier+FRM=m Receive FAX Data with m Carrier +FRH=m Receive Hdlc Data with m Carrier +FTH=m Transmit Hdlc Data with m CarrierFPR Manufacturer Identification +FMI +FAA Adaptive answerResult 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+VGR=gain AT+VIT = Timer DTE/DCE Inactivity TimerAT+VEM=mask Event Reporting and Masking AT+VNH = Hook Automatic Hang-up ControlAT+VTD=dur AT+VLS=label Analog Source/Destination SelectionAT+VTS=string Start voice transmission and reception processAT+VSD=sds, sdi Silence Detection Quiet and Silence AT+VSM?AT+VSM=? AT+VRN=interval Ringback Never Appeared Timer AT+VRA=interval Ringback Goes Away TimerAT+VPR=rate Select DTE/DCE Interface Rate Events Reported to the DTEAT+VTS= ATD DLE HAT+VLS=7 AT+VLS=5ATH Example # 2 Initiating a stored number speakerphone call Ring Example # 3 Answering a speakerphone callAT+FCLASS=1 ATAAT+FCLASS=0 Example # 6 Switching from speakerphone mode to TAD modeConnect 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 AT Commands +ES?+ES=? +ESA=? Idle,,,crctype,nrzien+ITF= off, on +ITF=?AT Commands for Homologation Testing and Debugging Version USA Country Codes CountryCode in HEXAT%T21,par#,paramvalue Pulse dial make time 255 ATD , ATX ATA, ATDATB ATH1Par # Parameter Description Range Reference Homologation ParametersVersion 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 Norway Spain Par. # Netherlands Italy150 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 ATZ OK ATZ OK ATS11? 085 OKXX-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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