The priority of codec is declined from up to down. Codecs define the
method of relaying voice data. Different codecs have different
characteristics, such as data compression and voice quality. For Example,
G723 is a codec that uses compression, therefore, it is good for use where
the bandwidth is limited but its voice quality is not good as other codecs,
such as the G711. If you specify none of the codecs, using the default
value showed in the above figure, the DSL router chooses the codec
automatically.
Table 32 – SIP settings table
After entering your VoIP settings press the Apply button. Select Management > Save/Reboot and press the Reboot button.
Once the router restarts if there is a valid internet connection and the VoIP account settings are valid the VoIP service will
start.