Cisco SPA1112 Provisioning Manual page 142

Voice Parameters
<FXS_Port_Impedance>
<FXS_Port_Input_Gain>
<FXS_Port_Output_Gain>
<DTMF_Playback_Level>
<DTMF_Playback_Length>
<Detect_ABCD>
<Playback_ABCD>
Provisioning Guide for Cisco SPA100 and SPA200 Series Analog Telephone Adapters
Sets the electrical impedance of the PHONE port. Choices
are:
600, 900, 600+2. 1 6uF, 900+2. 1 6uF, 270+750||150nF,
220+850||120nF, 220+820||115nF, or 200+600||100nF.
Default setting: 600.
NOTE For New Zealand impedance (370+620||310nF), use
270+750||150nF.
Input gain in dB, up to three decimal places. The range is
6.000 to -12.000.
Default setting: -3.
Output gain in dB, up to three decimal places. The range is
6.000 to -12.000. The Call Progress Tones and DTMF playback
level are not affected by the FXS Port Output Gain parameter.
Default setting: -3.
Local DTMF playback level in dBm, up to one decimal place.
Default setting: -16.0.
Local DTMF playback duration in milliseconds.
Default setting: . 1 .
To enable local detection of DTMF ABCD, select yes.
Otherwise, select no.
Default setting: yes
This setting has no effect if DTMF Tx Method is INFO; ABCD is
always sent OOB regardless in this setting.
To enable local playback of OOB DTMF ABCD, select yes.
Otherwise, select no.
Default setting: yes
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