ACCESS Product Manual
57
BRIC IP connections (and all IP traffic) use a concept known as ports to
differentiate between different applications on the same computer. A port
is simply a number contained in the IP header, but it can be treated as a
physical opening in and out of your computer. Most firewalls function by
opening the network to traffic with only specific port numbers.
Each IP connection has a source and destination port. Under most cir-
cumstances, the source port is unimportant, but the destination port can
be key. Certain incoming ports can be firewalled to outside traffic, and in
the case of several ACCESS behind a router (sharing a single public IP ad-
dress), the only way for them all to take incoming calls is to assign different
incoming ports to each device.
To transfer audio, ACCESS uses a default source and destination port of
9000. If this is changed, both the outgoing and incoming ACCESS must be
made aware of the change.
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onnectIng
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A
S
PecIFIc
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ort
Figure 29 - Connections Password in the Settings Tab
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