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VISION 5000 Videoconferencing System
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Advanced use
Default Call Type
Default Call Type selects the number of channels to be used, by default, when placing a call. The Vision
5000 will by default try to make a 6B channel BONDING call. This feature can be bypassed by prefixing the
dialled number as shown in the following listing.The format is #n*yyy, where n is the number of channels to
dial and yyy is a call prefix you can use, e.g. 0 to access external line.
Prefix Call type Prefix Call type
#12* 12B call (BONDING) #2* 2B call (H.221)
#8* 8B call (BONDING) #1* 1B call (H.221)
#6* 6B call (BONDING) #92* 2B call (BONDING)
#5* 5B call (BONDING) #91* 1B call (BONDING)
#4* 4B call (BONDING) #0* Telephone call
#3* 3B call (BONDING) #81* 1xH0 channel call (PRI only)
Example: #12*10288 specifies an 12 channel call and the prefix 10288 to the number.
MSN (Multi Subscriber Number)
The use of MSN (Multi Subscriber Number) enables you to attach different ISDN terminals, with different
numbers, to the same physical ISDN telephone line. If Validate Numbers is set to On only calls to those numbers
specified in the Line Setup menus will be answered. This service can be ordered from your telephone company.
Parallel dial
If set to On, channels will be dialled and connected in parallel when setting up a BONDING call. If set to
Off, channels will be dialled one by one which may increase the dialling time.
Downspeed
Downspeed enables your unit to automatically adjust to the maximum available bandwidth even if this is
only a telephone call. The downspeed ability is always active when dialling without a prefix. If however, a
prefix is used and downspeed is Off, a connection will not be possible unless the requested number of
channels are available. We recommend that downspeed is set to On.
Fallback to telephony
Fallback to telephony enables fallback from video calls to telephony/speech calls.
Send Own Numbers
If set to On, this unit will send its own numbers to the remote unit. If set to Off, the network may still send
your numbers to the remote unit.