Sample Sessions, 125 | Multi-Tech Systems MT5634SMI V.34 manual

Chapter 4 – Voice Commands

Sample Sessions

This section provides voice mode Send/Receive handshaking examples.

Sample Rate Selection and Suggested Compression Method

Command	Response
AT+VSM=?	The PC inquires about the compression methods and bits-per-sample options.
	The modem reports two compression methods:

1)PCM, twelve bits per sample, timing marks, sampling rates of 7200-8000 and 11025, three levels of silence compression sensitivity, and silence clip to 0.5 seconds;

2)The same as 1 above, but without silence compression; 3) ADPCM, two bits per sample, timing marks, sampling rate of 7200, no silence compression, and no silence clip.

128, "SIGNED PCM", 12, 40, (7200-8000, 11025), (127-129), (0-50) 129, "SIGNED PCM", 12, 0, (7200-8000, 11025), (0), (0)

132, "ADPCM/AQ", 2, 40, (7200), (0), (0)

AT+VSM=128	The PC selects the first compression method with the intent of queuing the event
	detection capabilities of the modem.
OK	The modem agrees.
AT+VEM=?	Checks the modem event detection capability for the first compression
	method.
"C"	The modem reports Service Level C.
0A000100
0E601800
1A803840
OK
AT+VSM=132	Selects the second compression method with the intent of querying the event
	detection capabilities of the modem.
OK	The modem agrees.
AT+VEM=?	Checks the modem event detection capability for the second compression
	method.
"B"	The modem reports Service Level B.
0A000100
04600000
1A803040
OK
AT+VLS?	The modem inquires about what analog source and destinations are available.
	The modem reports that a microphone and speaker are available:
	0, " ", 0A000100, 0E601800, 1A803840
	1, " T", 0A000100, 0E601800, 1A803840
	4, " S", 0A000100, 0E601800, 1A803840
	6, " M", 0A000100, 0E601800, 1A803840
	OK
AT+VSD=?	The modem inquires about what end-of-voice receive silence detection
	capabilities are available.

(127–129), (50–200)The modem reports that three levels of sensitivity and a time interval between 5.0 and 20.0 seconds.

Some time later, the PC wants to transmit or receive a voice message. The PC selects 1) the first compression method at 7200 sampling rate, enable silence compression with nominal silence sensitivity, and no silence clipping; 2) report all modem-supported event detection; 3) set end of receive silence detection at nominal silence sensitivity setting and for 5.0 seconds:

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

125 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.

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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, MT5634SMI V.92 manual Sample Sessions, Command Response, 125

Models: MT5634SMI V.34 MT5634SMI V.92

Sample Sessions

Sample Rate Selection and Suggested Compression Method

Command

Response

AT+VSM=?

AT+VEM=?

AT+VLS?

AT+VSD=?

125

MT5634SMI V.34, MT5634SMI V.92 specifications