Polycom SOUNDPOINT SIP 2.2.0 - Manual (Page 155)

Configuration Files
A - 43
Automatic Gain Control <agc/>
These settings control the performance of the transmit automatic gain control
feature.
Receive Equalization <rxEq/>
These settings control the performance of the receive equalization feature.
Note Automatic Gain Control will be implemented in a future release.
Polycom recommends that you do not change these values.
Attribute Default
voice.agc.hs.enable 0
voice.agc.hd.enable 0
voice.agc.hf.enable 0
Polycom recommends that you do not change these values.
Attribute Default
voice.rxEq.hs.IP_330.preFilter.enable 1
voice.rxEq.hs.IP_430.preFilter.enable 1
voice.rxEq.hs.IP_500.preFilter.enable 1
voice.rxEq.hs.IP_600.preFilter.enable 1
voice.rxEq.hs.IP_601.preFilter.enable 1
voice.rxEq.hs.IP_650.preFilter.enable 1
voice.rxEq.hs.IP_330.postFilter.enable 0
voice.rxEq.hs.IP_430.postFilter.enable 0
voice.rxEq.hs.IP_500.postFilter.enable 0
voice.rxEq.hs.IP_600.postFilter.enable 0
voice.rxEq.hs.IP_601.postFilter.enable 0