Table 6: Audio Configuration - D-Link GLV-540 User Manual

Table 6: Audio Configuration

Audio Configuration : Codec Settings
Select the audio codec's to be used and their priority while
establishing the call G.711Mu or G.711A gives best voice
quality but consumes highest bandwidth. G.723 consumes
least bandwidth with some compromise on quality. G.729 is
compromise between both.
It uses significantly less bandwidth as compared to G.711
Codec
and gives better quality as compared to
Preference
Value Range :<G711A> <G7111Mu> <G722> <G723>
<G726-16> <G726-24> <G726-32> <G726-40> <G729>
<iLBC-20> <iLBC-30>
Default Value: < G711Mu >, < G729 >, < G723>
This size indicates the number of Voice Payload frames per
packet. The frame size would depend on the codec and it is
Voice 10ms for G.711.
Payload Size
Value Range: 1, 2, 3
Default Value: 1
Selects mode in which DTMF to be transmitted on the
network.
Value
<SIP_INFO>, <AUTO>
DTMF Mode
Default Value: <AUTO>
Enter the payload type to use for out of band DTMF packets.
DTMF
Payload
Value Range: 96 to 127
Type
Default Value: 101
Audio Configuration : Voice Activity Settings
When this is enabled, Phone detects silence interval and
uses silence compression to save on bandwidth. This feature
works irrespective of the codec selected.
VAD
Value Range: <Enable>, <Disable>
Default Value: <Enable>
This specifies the type of algorithm to be used for VAD while
using G711 codec.
Algorithm Value Range: < Proprietary>, <G711 Appendix II>
Default Value :< G711 Appendix II>
Audio Configuration : Jitter Buffer Settings
The jitter buffer automatically determines the network jitter, maintains the
desired packet loss rate, subject to the limit of the maximum allowed jitter
delay.
Range :< IN
Selecting IN_BAND, DTMF are sent as IN Band packets
with voice.
Selecting OUT_OF_BAND,
RFC2833.
Selecting SIP_INFO, DTMF packets are sent as SIP_INFO
packets.
Selecting AUTO, the DTMF transmission negotiated as the
remote party's capability.
GLV-540 User Manual
G.723.
BAND>, <OUT_OF_BAND>,
DTMF are sent as per
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