Polycom SIP 3.0.2 Administrator's Manual page 159

Attribute
voice.aec.hf.erlTab_0_300
voice.aec.hf.erlTab_300_600
voice.aec.hf.erlTab_600_1500
voice.aec.hf.erlTab_1500_3500
voice.aec.hf.erlTab_3500_7000
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
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
-6
-6
-6
-6
-6
Default
0
7
0
0
1
7
7
6
6
5
4
4
3
2
10
9
8
A - 41