Revolabs FLX2 VoIP Advanced - Manual (Page 69)

69
Differentiated Services Code Point (DSCP) in the IP header is set
to 24 (0x18). For layer 2, IEEE 802.1p tagging is supported. This
option is unchecked by default.
Media Settings
Use the Media page to specify the preferred audio codecs and other audio stream
processing preferences as shown in the illustration below. After changing any of these
settings, the phone must be restarted for the changes to take effect.
Media Settings
Codec 1, 2, 3, 4
Use the four codec fields to specify the preferred audio codecs to
use, listed in priority order. The supported codecs are: G.722,
G.711 µ-law (PCMU), G.711 -law (PCMA), and G.726-32kbps. If
fewer than four codecs are desired, choose “Disabled” for the
unused codec options. Please note that at least one Codec has to
be provided as Codec 1 does not offer the option “Disabled”. The
default precedence order is as shown in the list above.
Audio Quality The Audio Quality setting determines which audio resampling
method to use. A higher number uses a more sophisticated
resampling method (ranging from a large filter to smaller filters
down to a linear method). More sophisticated resampling requires
more CPU processing, but delivers better audio quality. Audio
Quality can be set to values between 1 and 10, with 6 being the
default.
Codec ptime
override The ptime (packetization interval) value for a codec determines
the length of time in milliseconds represented by the media in an
RTP packet which is used to transmit audio traffic. The valid range
is 10-1000. Leave the field blank to use the default value. For all