Multi-Tech Systems MT2456SMI22 manual Identification, +GCI Country of Installation

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Chapter 4 - V.22bis Commands

2Selects reliable (error-correction) mode. The modem will first attempt a LAPM connection and then an MNP connection. Failure to make a reliable connection results in the modem hanging up. (Forces &Q5, S36=4, and S48=7.)

3Selects auto-reliable mode. This operates the same as \N2 except failure to make a reliable connection results in the modem falling back to the speed buffered normal mode. (Forces &Q5, S36=7, and S48=7.)

4Selects LAPM error-correction mode. Failure to make an LAPM error-correction connection results in the modem hanging up. (Forces &Q5 and S48=0.)

5Selects MNP error-correction mode. Failure to make an MNP error-correction connection results in the modem

hanging up. (Forces &Q5, S36=4, and S48=128.) Result Codes OK <mode> = 0 to 5

ERROR Otherwise

I Identification

This command causes the modem to reports the requested result according to the command parameter. Syntax I<value>

Defined Values

<value> Decimal number corresponding to the selected information.

0Reports product code, e.g., “2400”.

1Reports the least significant byte of the stored checksum in decimal. Reports 255 if the prestored checksum value is FFh.

2Reports "OK".

3Reports identification codes.

RevisionName = masked firmware code version. Example: Patton Modulation = V.22bis Example:

Patton-V22B

4Reports OEM defined identifier string in either Hayes-compatible binary format (default), e.g.: a007040284C6002F bC60000000r10051111510120003000111170000000

5Reports Country Code parameter (see +GCI).

6Reports “OK”.

7Reports “OK”.

Result Codes OK <value> = 0 - 7

ERROR Otherwise

+GCI Country of Installation

This extended syntax command selects and indicates the country of installation for the modem. This parameter selects the settings for any operational parameters that need to be adjusted for national regulations or telephone networks. Additional country profiles can be uploaded and existing ones can be modified by minor firmware upgrade via SRAM patch.

Syntax +GCI=<country_code>

Country Code Japan 00 Argentina 01 Taiwan 02 New Zealand 03 Singapore 04 Australia 09 Euro/NAM B5 International 99 Malaysia 6C South Africa 9F

Default If the modem is specified for use in only one country, that country code is the default. Otherwise, the default is defined by the OEM. Factory default is B5 (United States).

Reporting Current or Selected Values

Command: +GCI?

Response: +GCI: <current country_code>

Example: +GCI: B5 The modem is set for U.S.

Reporting Supported Range of Parameter Values

Command: +GCI=?

Response: +GCI: (<country_code>[,<country_code>[,<country_code].......]]

Example: +GCI: (00,B4,B5) The modem can be set for Japan, United Kingdom, or the United States.

Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide

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Contents SocketModem Country By Email By Phone PN S000281A, Version aContents Product Description Product Description SpecificationsSpeed Conversion Technical SpecificationsMaximum Component Height Physical DimensionsPin Descriptions Pin Configurations3V DC Power 3V and 5V Serial SocketModem Handling PrecautionsInput High Input Low Outputs Output High Output LowDTE/DCE Commands Generic Modem Control CommandsCall Control Commands Modulation Control CommandsSynchronous Access Mode Commands Error Control and Data Compression CommandsFast Connect Command Line Side Device CommandsSoft Reset and Restore Profile 22bis Generic Modem Control CommandsOperating Mode +VCID Caller ID CIDIdentification +GCI Country of InstallationProcedure Restore Factory Configuration ProfileLocal Analog Loopback Test Load to Internal RAMCommand Echo 22bis DTE/DCE-Modem Interface commandsQuiet Result Codes Control Result Code FormExtended Result Codes Connect Ring No Carrier Error No Dial Tone Busy No AnswerRlsd Option Short Form Long Form Value in ATXn CommandResult Codes OK 0 or DTR Option\G Modem-to-Modem Flow Control XON/XOFF RTS/CTS Option+IFC DTE-Modem Local Flow Control Entering and Exiting In Band Active State +IBC In Band CommandsEM Shielding Data Supported DCE-to-DTE Commands Command Hex Codes Description Supported DTE-to-DCE CommandsBand Processing of AT Commands Dial 22bis Call Control CommandsDial Modifiers Result Code Set Pulse Dial Default Set Tone Dial DefaultReturn to On-Line Data Mode Speaker VolumeMSpeaker Control Display Current Configuration and Stored ProfilesSelect Guard Tone Select Pulse Dial Make/Break RatioReport Line Signal Level \V Single Line Connect Message EnableReport Line Signal Quality Display Blacklisted NumbersNO. Phone Number -DELAY Display Delayed NumbersBehavior in Data Mode Syntax *D ExampleReporting Selected Values +PCW Call Waiting Enable+VDR Distinctive Ring Table of +MS Command Supported Rates 22bis Modulation Control Commands+MS Modulation Selection SyntaxITU-T or Bell Enable/Disable Line Quality Monitor and Auto-Retrain+ESR Selective Repeat 22bis Error Control and Data Compression Commands+ETBM Call Termination Buffer Management \B Transmit Break to RemoteBreak Control Result Codes OK 0 to 5 Error Otherwise+ESA Configure Synchronous Access Submode 22bis Synchronous Access Mode CommandsReporting Selected Options +ESA?+ITF? Transmit Flow Control Thresholds$F Fast Connect Control 22bis FastConnect CommandSyntax $Fn Defined Values Threshold Adjustments for Telephony Extension 22bis Line Side Device CommandsTRV Tip and Ring Voltage Measurement ResponseRead/Write S-Parameter 22bis S-ParametersRegister Function Range/Units Default Summary of S-Parameter DefaultsAscii S1 Ring Counter S0 Number of Rings to Auto-AnswerS2 Escape Character S3 Carriage Return CharacterS10 Lost Carrier To Hang Up Delay S8 Pause Time For Dial DelayS12 Escape Prompt Delay EPD S9 Carrier Detect Response TimeS19 Reserved S16 Test Mode Bit Mapped Options StatusS20 Reserved S21 V.24/General Bit Mapped Options StatusS25 Delay To DTR Off S24 Sleep Inactivity TimerS26 RTS to CTS Delay S22 Speaker/Results Bit Mapped Options StatusS27 Bit Mapped Options Status S30 Disconnect Inactivity TimerS28 Bit Mapped Options Status S29 Flash Dial Modifier TimeS36 Lapm Failure Control S38 Delay Before Forced Hang UpS37 Desired Line Connection Speed S39 Flow Control Bit Mapped Options StatusS48 V.42 Negotiation Action S41 General Bit Mapped Options StatusS82 Break Handling Options S86 Call Failure Reason CodeS95 Extended Result Codes Control S91 Pstn Transmit Attenuation LevelTable of Result Code Definitions 22bis Result CodesCode Message Meaning Connect75TX/1200RX Is enabled Figure A-1. Serial Test/Demo Board Block Diagram Block DiagramCountry Certifications Product Safety and EMC ApprovalsCountry Country Code More plannedHardware Considerations Regulatory Design ConsiderationsSafety Qty Name Description SocketModem PlacementMulti-Tech Systems, Inc. Compliance ComplianceTelecom Requirements for the United States Label Physical Characteristics Label Content and FormatLabeling Continuity and Changes Telecommunications Regulations for CanadaOther Label Requirements Industry Canada New Zealand Telecom Warning NoticeInternational Modem Restrictions EMC, Safety, and R&TTE Directive ComplianceSouth African Statement Index Index
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