Polycom SIP 2.2.0 Administrator's Manual page 153

Attribute
voice.aes.hs.enable
voice.aes.hs.duplexBalance
voice.aes.hd.enable
voice.aes.hd.duplexBalance
voice.aes.hf.enable
voice.aes.hf.duplexBalance.0
voice.aes.hf.duplexBalance.1
voice.aes.hf.duplexBalance.2
voice.aes.hf.duplexBalance.3
voice.aes.hf.duplexBalance.4
voice.aes.hf.duplexBalance.5
voice.aes.hf.duplexBalance.6
voice.aes.hf.duplexBalance.7
voice.aes.hf.duplexBalance.8
voice.aes.hf.duplexBalance.IP_4000.0
voice.aes.hf.duplexBalance.IP_4000.1
voice.aes.hf.duplexBalance.IP_4000.2
voice.aes.hf.duplexBalance.IP_4000.3
voice.aes.hf.duplexBalance.IP_4000.4
voice.aes.hf.duplexBalance.IP_4000.5
voice.aes.hf.duplexBalance.IP_4000.6
voice.aes.hf.duplexBalance.IP_4000.7
voice.aes.hf.duplexBalance.IP_4000.8
Acoustic Echo Suppression <aes/>
These settings control the performance of the speakerphone acoustic echo
suppressor.
Polycom recommends that you do not change these values.
Configuration Files
Default
0
7
0
0
1
7
7
6
6
5
4
4
3
2
10
9
8
7
6
5
4
3
2
A - 41