Chapter 1 – AT Commands, S-Registers and Result Codes

Command:

+PMHF

V.92 Modem Hook Flash

 

 

Values:

 

N/A

 

 

 

Default:

 

N/A

 

 

 

Description:

 

Causes the DCE to go on-hook for a specified period of time, and then return

 

 

off-hook for at least a specified period of time. The specified period of time is

 

 

normally one-half second, but may be governed by national regulations.

 

 

“ERROR” is returned if MOH is not enabled.

Command:

+PMHR=n

Modem on Hold Initiate

 

 

Values:

 

n = 0–13

 

 

 

Default:

 

0

 

 

 

Description:

 

+PMHR is an action command that causes the modem to initiate MOH with

 

 

the central site modem. It returns the following values to indicate what has

 

 

been negotiated. Valid only if MOH is enabled and the modem is off-hook or

 

 

in data mode. Otherwise, ERROR will be returned.

 

 

+PMHR=0

Deny MOH request

 

 

 

 

+PMHR=1

Grant MOH request with 10 second timeout

 

 

+PMHR=2

Grant MOH request with 20 second timeout

 

 

+PMHR=3

Grant MOH request with 30 second timeout

 

 

+PMHR=4

Grant MOH request with 40 second timeout

 

 

+PMHR=5

Grant MOH request with

1 minute timeout

 

 

+PMHR=6

Grant MOH request with

2 minute timeout

 

 

+PMHR=7

Grant MOH request with

3 minute timeout

 

 

+PMHR=8

Grant MOH request with

4 minute timeout

 

 

+PMHR=9

Grant MOH request with

6 minute timeout

 

 

+PMHR=10

Grant MOH request with

8 minute timeout

 

 

+PMHR=11

Grant MOH request with 12 minute timeout

 

 

+PMHR=12

Grant MOH request with 16 minute timeout

 

 

+PMHR=13

Grant MOH request with indefinite timeout

 

 

+PMHR=?

Displays the allowed values

 

 

+PMHR?

Displays the current value

 

Command:

+PMHT=n

Modem on Hold Timer

 

 

Values:

 

n = 0–13

 

 

 

Default:

 

0

 

 

 

Description:

 

Determines if the modem will accept a V.92 Modem on Hold (MOH) request

 

 

and will set the MoH timeout.

 

 

 

 

+PMHT=0

Deny MOH request

 

 

 

 

+PMHT=1

Grant MOH request with 10 second timeout

 

 

+PMHT=2

Grant MOH request with 20 second timeout

 

 

+PMHT=3

Grant MOH request with 30 second timeout

 

 

+PMHT=4

Grant MOH request with 40 second timeout

 

 

+PMHT=5

Grant MOH request with

1 minute timeout

 

 

+PMHT=6

Grant MOH request with

2 minute timeout

 

 

+PMHT=7

Grant MOH request with

3 minute timeout

 

 

+PMHT=8

Grant MOH request with

4 minute timeout

 

 

+PMHT=9

Grant MOH request with

6 minute timeout

 

 

+PMHT=10

Grant MOH request with

8 minute timeout

 

 

+PMHT=11

Grant MOH request with 12 minute timeout

 

 

+PMHT=12

Grant MOH request with 16 minute timeout

 

 

+PMHT=13

Grant MOH request with indefinite timeout

 

 

+PMHT=?

Displays the allowed values

 

 

 

+PMHT?

Displays the current value

 

 

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

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Multi-Tech Systems MT5634SMI V.92, MT5634SMI V.34 manual Modem Hook Flash, Command +PMHR=n Modem on Hold Initiate
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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.
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