8
D-Link DPH-18MS User Manual
Section - Installation
Voice Setting
Codec (Priority 1-3):
RTP Packet Length:
VAD:
DTMF Method:
Payload Type:
Decide and make the codec priority with the supported
audio codec such as G.711 μ-law, G.711 a-law, and
G.729A. The codec at first priority is highly probable to
be used for conversation.
Select the
RTP Packet Length
in milliseconds from
the options for each audio codec. It will increase the
network traffic load if a shorter packet length is selected;
however, it may reduce the voice quality if a longer length
is selected.
Enable or disable the
VAD
(short for Voice Activity
Detection) function for silence suppression. When VAD
is ON, the CNG (Comfort Noise Generation) function
will also be activated.
The VoIP phone supports three kinds of method to
generate DTMF tones such as
Out Band
(i.e. RFC
2833),
In Band
and
SIP INFO
.
When
Out Band
is selected, please also decide and enter the value of
Payload Type
in the blank. Please contact
your service provider for a suitable type.
Click
Submit
to save and activate the changes, or
Reset
to restore the configurations.
Summary of Contents for DPH-128MS - VoiceCenter VoIP Phone
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