Draytek vigorphone 300 - Phone; Dsp

55
3
3
.
.
4
4
P
P
h
h
o
o
n
n
e
e
3
3
.
.
4
4
.
.
1
1
D
D
S
S
P
P
In this page, you can configure voice codec, input/output volume and so on.