XONTEL XT-800FXO, Руководство пользователя

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Figure 4-8 Codecs
If you want to use codec G729, we recommend buying a license key and input it here.
4) Qos
QoS (Quality of Service) is a major issue in VoIP implementations. The issue is how
to guarantee that packet traffic for a voice or other media connection will not be
delayed or dropped due interference from other lower priority traffic. When the
network capacity is insufficient, QoS could provide priority to users by setting the
value.
Figure 4-9 QOS
Note: It’s recommended that you configure the QoS in your router or switch instead of
XT-800FXO Gateway side.
5) Response Code
You can change the response code on XT-800FXO Gateway to the one you want
before sending it to the VoIP server. It helps the VoIP server understands better the
exact call status, like busy, no response and others.
Figure 4-10 Response Code
Note:
we don’t’ recommend configuring this if you are not familiar with the code of call
status from the VoIP server.
6) Advanced Settings