Draytek Vigor IPPBX 2820n, User Manual

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VigorIPPBX 2820 Series User’s Guide 85
Packet Size - The amount of data contained in a single
packet. The default value is 20 ms, which means the data
packet will contain 20 ms voice information.
Voice Active Detector - This function can detect if the
voice on both sides is active or not. If not, the router will do
something to save the bandwidth for other using. Click On
to invoke this function; click off to close the function.
After finishing all the settings here, please click OK to save the configuration.
In addition, you can press the Advanced button to configure tone settings, volume gain,
MISC, DTMF mode and MSN number. Advanced setting is provided for fitting the
telecommunication custom for the local area of the router installed. Wrong tone settings
might cause inconvenience for users. To set the sound pattern of the phone set, simply
choose a proper region to let the system find out the preset tone settings and caller ID type
automatically. Or you can adjust tone settings manually if you choose User Defined. TOn1,
TOff1, TOn2 and TOff2 mean the cadence of the tone pattern. TOn1 and TOn2 represent
sound-on; TOff1 and TOff2 represent the sound-off.
Available settings are explained as follows: