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 |
| 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 | The ptime (packetization interval) value for a codec determines the |
override | 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 of the |
| codecs supported by FLX, the default ptime value is 20 ms/packet. |
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