ZyXEL Communications IES-1248-51A - Page 552

Chapter 68 VoIP Commands
IES-1248-51V User’s Guide
552
voip profile dsp set <dsp-
profile>
[codec <codec>[,<codec> ...]]
[echotail <echo-tail>]
[playbuffer <min-delay> <max-
delay>]
[echocancel off|on]
[vad off|on]
[g711vpi <g711-vpi>]
[g723vpi <g723-vpi>]
[g726vpi <g726-vpi>]
[g729vpi <g729-vpi>]
This command creates and configures a DSP
(Digital Signal Processing) profile.
codec: Available codecs are:
G.711a: g711a
G.711mµ: g711mu
G.723: g723
G.726
16 kbps: g726-16
24 kbps: g726-24
32 kbps: g726-32
40 kbps: g726-40
G.729a & b: g729ab
echo-tail: The echo cancellation echo tail
period in milliseconds (8, 16, 32 or 128).
min-delay: The play buffer minimum delay
in milliseconds (10 ~ 500). This value should
be less than or equal to the max-delay.
max-delay: The play buffer maximum delay
in milliseconds (10 ~ 500). This value should
be greater than or equal to the min-delay.
echocancel off|on: Disable or enable echo
cancellation.
vad off|on: Disable or enable Voice Activity
Detection (VAD).
g711-vpi: G.711 voice package interval, 10,
20, 30 or 40 ms.
g723-vpi: G.723 voice package interval, 30
or 60 ms.
g726-vpi: G.726 voice package interval, 10,
20, 30 or 40 ms.
g729-vpi: G.729 voice package interval, 10,
20, 30, 40, 50 or 60 ms.
The default profile “DEFVAL” has the following
settings:
Codec: G.711a, G.711mµ
Min-delay: 30ms
Max-delay: 120ms
Echo tail: 32ms
Echo cancellation: on
vad: off
G.711 VPI: 20 ms
G.723 VPI: 30 ms
G.726 VPI: 20 ms
G.729 VPI: 20 ms
M/
H
voip profile dsp show [name] This command displays the settings of the
specified DSP profile, or displays the names of
all DSP profiles if none is specified.
L/L
Table 212 voip dsp Commands (continued)
COMMAND DESCRIPTION P