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Why Change the Default Outgoing Bandwidth?
To make a call, the bandwidth of the calling VIU-323 must match that of the called
endpoint. When default settings do not match, you can force a change in the bandwidth of
the calling VIU-323.
There are three instances when this is necessary:
!
When the bandwidth of the receiving unit differs from the bandwidth of the calling
VIU-323.
!
When the bandwidths of the two units are the same, but to get through the gateway, the
bandwidth must be changed.
!
When you are calling another VIU-323 and high bandwidth is not available—during
peak calling hours, for example.
Note: When dialing from one VIU-323 to another, you can change the incoming bandwidth
of the VIU-323 that is receiving your call by adding a dialing suffix
How to Change the Bandwidth
Add the prefix before the dialing stream to force a change in the bandwidth of the VIU-323
that is calling.
The following table displays the prefixes that you dial to force a change in the outgoing
bandwidth (note the difference between prefixes for non-restricted and restricted
bandwidths):
To Force Calling
Bandwidth to:
2 x 64 Kbps (2B)
128 Kbps
256 Kbps
384 Kbps
768 Kbps
2 x 56 Kbps (2B) (restricted)
112 Kbps (restricted)
224 Kbps (restricted)
336 Kbps (restricted)
672 Kbps (restricted)
Changing Outgoing Bandwidth
Use Prefix:
#00
#10
#20
#30
#70
#01
#11
#21
#31
#71
6-5
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