on this selection, to ensure that it can properly communicate with all types of
SIP equipment. Two options are available:
Inband DTMF – allows the device to send the actual sound that represents
the DTMF selection.
Outband DTMF – allows the device to send the DTMF signal that represents
the DTMF selection.
In provider infrastructures the usual selection is Outband DTMF since it is
more reliable and greatly reduces the misfiring of the DTFM detecting
engines.
Jitter Range
This is the Jitter range in milliseconds. High jitter values allow devices to
communicate better in high latency networks. Low jitter values are used in
low latency networks for improved voice quality. The default value of this
filed is: 30-300
Enable Echo Cancel
Checking this option will enable the Echo Cancel of the device. This is
required to reduce acoustic echo.
Enable VAD
This option will allow activation of the Voice Activated Detection (VAD)
functionality which will enhance the overall bandwidth performance of the
device reducing the consumed bandwidth with at least 25% percent.
Packet Size
This is the packet size in milliseconds. Packets Sizes vary in different when
using different codecs and connect to different gateway servers. The default
value is 30 ms packet size.
RTP Media Port Range
This is the port range for the RTP media. RTP is the stream that carries the
encoded voice. Default values are: 16000-63000
RTP TOS
This is the RTP media Type-of-Service (TOS) packet setting. The default
value is: 0x10
TV BOX - ITC KM250/KM320
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ITC Global Media
