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Siemens MC35 Atsnfm Mute microphone, Audio programming model, Atsnfm=?, Atsnfm?, Snfm mute OK

Models: MC35

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AT Command Set

8.22 AT^SNFM Mute microphone

Test command

Response

AT^SNFM=?

^SNFM: (list of supported <mute>s) OK

 

Parameter

 

See write command

 

 

Read command

Response

AT^SNFM?

^SNFM: <mute> OK

 

Parameter

 

See write command

 

 

Write command

Response

AT^SNFM=<mute>

TA switches on/off the microphone

 

OK

Parameter

<mute> 0 Mute microphone

1Microphone on

Reference

Note

Siemens

This command can be used in all audio modes and during a voice call

 

only.

 

 

8.23 Audio programming model

The following figure illustrates how the signal path can be adjusted with the AT command parameters described in the Chapters 0 to 8.27

2,65V

 

 

 

 

1k

 

 

 

 

1k

 

 

inCalibrate

 

10uF

 

A

-∞...0dB

 

 

D

 

speechcoder

1k

+0..42dB in

 

 

 

 

6dB-steps

 

 

 

 

 

 

 

1k

inBbcGain

 

 

 

 

 

 

 

 

 

 

sideTone

 

6,8R

 

D

 

speechdecoder

 

 

+

 

 

A

 

6,8R

(0dB; -6db,

 

outCalibrate[n]

 

 

 

n = 0...4

 

-12dB; -18dB)

 

 

 

 

outBbcGain

 

 

 

 

 

 

 

AT parameters

Figure 1: AT audio programming model

MC35_ATC_01_V04.00

Page 197 of 238

02.04.2002

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Image 197
Siemens MC35 manual Atsnfm Mute microphone, Audio programming model, Atsnfm=?, Atsnfm?, Snfm mute OK
Page 196 Page 198

MC35 specifications

The Siemens MC35 is a compact and versatile modem designed primarily for mobile communication, data transmission, and machine-to-machine (M2M) applications. Launched in the early 2000s, it quickly became popular due to its blend of performance, reliability, and ease of integration, making it a solid choice for developers and businesses.

One of the key features of the MC35 is its support for GSM and GPRS technologies. This allows it to connect seamlessly to various networks, enabling users to transmit data at speeds that were impressive for its time. The GPRS capability can offer data rates of up to 171.2 kbps, allowing for efficient data transfer even in areas with limited connectivity.

The MC35 is designed to support both SMS and voice functionalities, making it adaptable for a range of applications. This includes remote monitoring, telemetry, and alarm signaling. The ability to send and receive SMS messages is a significant advantage for applications that require immediate alerts and notifications, enhancing its utility in security systems and industrial automation.

Furthermore, the modem is equipped with a range of interfaces, including serial communication (RS232), which makes it compatible with various hardware devices. This facilitates easy integration into existing systems, whether for industrial machinery or consumer electronics. Additionally, it features a robust software development kit (SDK), which enables developers to create custom applications tailored to their specific requirements.

Power consumption is another notable characteristic of the Siemens MC35. It is engineered to be energy-efficient, which is especially important for battery-operated devices or systems that require a prolonged operation without frequent recharging or maintenance.

In terms of physical characteristics, the MC35 is compact and lightweight, allowing it to fit into various enclosure designs without occupying much space. Its durability ensures it can perform reliably in different environments, making it suitable for outdoor and industrial applications.

To summarize, the Siemens MC35 stands out as a reliable modem with a rich feature set that includes GSM and GPRS support, SMS and voice capabilities, easy integration through various interface options, and energy-efficient operation. Its adaptability makes it a valuable tool for a wide array of communication and data transmission tasks, solidifying its place in the evolution of mobile communications technology.