Identification Commands

Chapter 3 – Fax Class 2 Commands

Service Class Indication

A MultiModem modem will report its Service Class capabilities, both the current setting and the range of services available. This is provided by the +FCLASS parameter. Currently-defined values for the +FCLASS parameter are:

Parameter	Service Class
0	Data modem

1	Fax Service Class 1 (TIA-578, ITU-T.31)

1.0	Fax Service Class 1.0 (ITU-T T.31, Amendment 1)

2	Fax Service Class 2 (EIA 29.2)

2.0	Fax Service Class 2.0 (ITU-T T.32)

2.1	Fax Service Class 2.1 (ITU-T T.32 Amendment 1)

3-7	Reserved (not supported)

8	Voice modem

9-255	Reserved (not supported)

[None]	Not supported

The +FCLASS factory default setting is +FCLASS=0. When +FCLASS is set to other than 0 and a call is made, but the call fails or the modem is disconnected, the +FCLASS value returns to the default setting (+FCLASS=0).

Class 2.1	+FCLASS?
	A modem’s current Service Class setting is tested by the +FCLASS? command. The
	response is a single value.
Class 2	+FCLASS?
	Same as Class 2.1.

Service Class Capabilities

Class 2.1	+FCLASS=?
	The Service Classes available from a modem are tested by the +FCLASS=?
	command. The response is a string of values separated by commas. A Class 2.1
	MultiModem can respond:
	Example: <CR><LF>0,1,2,1.0,2.0,2.1,8<CR><LF>OK<CR><LF>.

Class 2	+FCLASS=?
	A Class 2 MultiModem responds similarly; however, older Multi-Tech modems that
	do not support Class 2.1 report fewer options.

Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C)

MT5634SMI V.34, MT5634SMI V.92 specifications

The Multi-Tech Systems MT5634SMI is a versatile and robust external modem designed to cater to a variety of communication needs. As a V.92/V.34 standard modem, it provides reliable and efficient data connections for both home and business users. Its unique blend of features and technologies makes it an excellent choice for users looking to achieve optimal performance in their data transmission.

One of the standout features of the MT5634SMI is its support for the V.92 standard, which offers faster throughput and enhanced performance compared to prior standards. With V.92, users can experience download speeds of up to 56 Kbps and upload speeds reaching 48 Kbps. This improved speed is particularly beneficial for users who frequently download large files or engage in data-intensive activities.

The modem also includes the V.34 technology, which further enhances its capabilities by improving connection reliability and data integrity over various line conditions. Utilizing advanced error correction and data compression techniques, the V.34 modem ensures a smoother and faster communication experience. This makes it ideal for users in areas with fluctuating line quality or those who require stable connections for online conferencing or telecommuting.

In terms of form factor, the MT5634SMI is an external modem, which allows for easy installation and portability. Its compact design ensures it can fit into any workspace without taking up much room or adding clutter. The modem connects to computers via standard serial ports, making it compatible with a wide range of devices, both modern and legacy.

Additional features of the MT5634SMI include built-in diagnostics to assist troubleshooting and ensure smooth operation. It supports multiple operating environments, catering to users operating on various systems, providing versatility for both home and office settings. The modem's compatibility with popular operating systems guarantees that users can easily integrate it into their existing setups without a hassle.

In conclusion, the Multi-Tech Systems MT5634SMI V.92/V.34 modem stands out as a reliable choice for anyone needing high-speed internet connectivity. With its strong feature set, enhanced technologies, and user-friendly design, it is an asset for enhancing communication and data transfer capabilities. Whether for personal use or business applications, the MT5634SMI delivers performance and reliability, making it a valuable addition to any technology arsenal.

Multi-Tech Systems MT5634SMI V.34 Identification Commands, Service Class Indication, +Fclass?

Models: MT5634SMI V.34 MT5634SMI V.92