AT Command Reference Guide for EDGE Wireless ... - wless.ru

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Chapter 17 – Audio Commands 17.10 AT^SNFD Set Audio Parameters to Manufacturer Default Values Description: AT^SNFD sets the active audio parameters to manufacturer defined default values. The restored values are: AT^SNFA: AT^SNFI: , AT^SNFO: , [0 to 4], AT^SAIC: , , AT^SNFS: Test Command Syntax: AT^SNFD= Response: OK Exec Command Syntax: AT^SNFD Response: OK Note: Remember that the factory set audio mode 1 is fixed to =4. Consequently, AT^SNFD restores together with =4, but does not affect the values of currently selected in audio modes 2 - 6. This means, if =1, the read commands AT^SNFO, AT^SNFV and AT+CLVL will always deliver =4. In all other modes the value is retained until explicitly changed. 17.11 AT^SNFI Set Microphone Path Parameters Description: AT^SNFI controls the microphone path amplification. Read and write options of this command refer to the active audio mode. The write command works only in audio modes 2 to 6. Test Command Syntax: AT^SNFI= Response: ^SNFI: (list of supported s) , (list of supported s) OK Read Command Syntax: AT^SNFI Response: ^SNFI: , OK Write Command Syntax: AT^SNFI=, Response: OK Parameter Descriptions: ADC gain adjustable in eight 6 dB steps from 0 dB to 42 dB (0=0dB, 7=42dB, 8 steps of 6 dB). 0...7 Multiplication factor for input samples. Formula to calculate the negative gain (attenuation) of the input signal: Gain in dB = 20 * log (inCalibrate / 32768) 0...32767 Notes: • The range of is up to 65535 but will be suppressed to 32767. Values above = 65535 will cause a failure. • The parameter of AT^SNFI is identical with of AT^SNFA. • For use after restart, changed values can be stored with AT^SNFW. • Attention! When you adjust audio parameters avoid exceeding the maximum allowed level. Bear in mind that exposure to excessive levels of noise can cause physical damage to users! Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 218
Chapter 17 – Audio Commands 17.12 AT^SNFM Set Microphone Audio Path Description: The read command returns the microphone mute and supply voltage status. The write command can be used to switch the microphone’s audio path (muted/ not muted) . The microphone can be muted or activated by changing in all audio modes (1 to 6) and during a voice call only. As an alternative, you can use the AT+CMUT command to mute the microphone. Test Command Syntax: AT^SNFM= Response: ^SNFM: (list of supported s) OK Read Command Syntax: AT^SNFM Response: ^SNFM: OK Write Command Syntax: AT^SNFM=[] Response: OK Parameter Description: Microphone mute control parameter. Evaluated during voice calls and if is omitted only (e.g., AT^SNFM=1). Command does not depend on audio mode. 0 Mutes the microphone. 1 Activates the microphone. Default. Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 219
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Wireless EDGE Modems MultiModem ®
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Table of Contents Table of Contents
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Table of Contents 8.8.1 AT^MONI Res
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Table of Contents 16.5 AT+CPBW Writ
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3.2 AT+CIND Indicator control Descr
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5.4 AT+CLCK Facility Lock Chapter 4
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Chapter 6 - Identification Commands
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Chapter 10 - Internet Service Comma
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Write Command Syntax: Response: AT^
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11.3 AT+CGATT GPRS Attach or Detach
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11.10 AT+CGQMIN Quality of Service
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