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Session Timer
DND (Do Not Disturb)
mode
CLIR (hide caller ID)
Codecs
Check the box to enable the function. In the limited time
that you set in this field, if there is no response, the
connecting call will be closed automatically.
Set a period of peace time without disturbing by VoIP
phone call. During the period, the one who dial in will
listen busy tone, yet the local user will not listen any ring
tone.
Index (1-15) in Schedule - Enter the index of schedule
profiles to control the DND mode according to the
preconfigured schedules. Refer to section Applications>>
Schedule for detailed configuration.
Check this box to hide the caller ID on the display panel
of the phone set.
Prefer Codec - Select one of five codecs as the default for
your VoIP calls. The codec used for each call will be
negotiated with the peer party before each session, and so
may not be your default choice. The default codec is
G.729A/B; it occupies little bandwidth while maintaining
good voice quality.
If your upstream speed is only 64Kbps, do not use G.711
codec. It is better for you to have at least 256Kbps
upstream if you would like to use G.711.
Single Codec – If the box is checked, only the selected
Codec will be applied.
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.
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VigorIPPBX 2820 Series User's Guide
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