Panasonic KX-NCP500, Networking Manual

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For example, if you wish to use only 10 of the available 16 virtual VoIP channels (i.e., disable 6 channels), set
ports 8, 7, and 6 to
OUS as shown below:
In this case, the equation for bandwidth calculation, based on the previous example, will change as follows:
Required Bandwidth
= (No. of Fax Machines
´
Required Bandwidth for the G.711 codec) +
[( 10 - No. of Fax Machines)
´
Required Bandwidth for Voice Communication]
= (2
´
87.2) + [( 10 - 2)
´
31.2]
= 424 (kbps)
16 IP Networking Guide Document Version 2010-08
2.1.1 Bandwidth Assessment