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

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 13