VoIP
676 ◆Features Aspire Software Manual
CODEC Filter Configuration
Program Item Input Data Default How to Adjust
81-07-01 CODEC Filter Setup for Analog
Trunk Port 0: No Filter
1: 0dB Loss
2: 4dB Loss
3: 8dB Loss
4. Specified Data
2 Setting this data depends on the
loss of the analog line. This will
reduce the echo from the analog
hybrid circuit caused by the mis-
match of the impedance.
• When the signal loss is low
(ex. behind PBX connection),
set to 1.
• When the signal loss is high
(large distance from the cen-
tral office), set to 3.
• When the echo from the ana-
log line is too much, setting 4
(specified data) may help
improve the condition.
• Input data 1-4 is equivalent to
Types 1-4 in the Analog Port
CODEC Filter Setup table
below.
82-07-01 CODEC Filter Setup for Analog
Station Port 0: No Filter
1: 0dB Loss
2: 4dB Loss
3: 8dB Loss
4: Specified Data
1 Setting this data depends on the
loss of the analog line. This will
reduce the echo from the analog
hybrid circuit caused by the mis-
match of the impedance.
• When the signal loss is low
(ex. behind PBX connection),
set to 1.
• When the signal loss is high
(large distance from the cen-
tral office), set to 3.
• When the echo from the ana-
log line is too much, setting 4
(specified data) may help
improve the condition.
• Input data 1-4 is equivalent to
Types 1-4 in the Analog Port
CODEC Filter Setup table
below.