DWR-980
Wireless AC1200 4G LTE Router with VDSL2 Support,
Gigabit Ethernet Ports, and 2 FXS Ports
User Manual
Configuring via Web-based Interface
Parameter
Description
LEC
Line Echo Cancellation.
Move the switch to the right to enable the function.
NLP
Nonlinear Processing.
Move the switch to the right to enable the function.
Echo Tail
Maximum echo tail length (in milliseconds). Select the needed value
from the drop-down list.
iLBC mode
Internet Low Bitrate Codec.
The value of the field specifies the operation mode of the codec.
Select the needed value from the drop-down list.
•
mode 20ms
– the speech signal transfer rate is 15.20Kbps
for 20ms frames.
•
mode 30ms
– the speech signal transfer rate is 13.33Kbps
for 30ms frames.
SPEEX bitrate
A speech signal compression codec for VoIP traffic transmission.
Select the needed value from the drop-down list.
Volume Settings
Speaker
Specify the earphone volume for the phone connected to the FXS
port of the router.
Microphone
Specify the microphone sensitivity for the phone connected to the
FXS port of the router.
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