03-06-2003 11:29 AM - edited 03-12-2019 10:57 PM
We have a 7960 IP phone using the Skinny Protocol, is there away to turn on/off VAD on the phone. I've seen how you can do it if the phone is running SIP but not skinny. Thanks
03-06-2003 03:54 PM
I've seen "Enable VAD" on SIP phones also? What does it do and when should it be enabled or disabled?
F C Wood
03-07-2003 01:10 PM
VAD is "Voice Activity Detect" which is basicaly the same as Silence Supression. The idea behind it is to reduce RTP traffic when there is no conversation between the parties.
03-08-2003 06:16 AM
Since the idea is to reduce RTP traffic, is disabling Voice Activity Detect (VAD) undertaken mostly to free up bandwidth?
F C Wood
03-06-2003 08:50 PM
when using skinny VAD is controlled from the Callmanager
03-06-2003 09:00 PM
To disable VAD on Cisco CallManager, ensure that the following parameters in the CallManager are set to False (F):
SilenceSuppresionSystemWide
SilenceSuppresionWithGateways
09-15-2003 12:43 PM
Here is a funny thing. We have a CCM installed, in the main dial-peer of our voice gateway we have VAD disable (no vad) and both parameters: SilenceSuppresionSystemWide
SilenceSuppresionWithGateways
are set to false. Even though, the silence supresion is enable on outgoing calls only, for incoming calls everything is working fine, it only happends for outgoing calls.
Any idea?
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