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A1 VoIP Requirements
Does only a single router provide access to the IP network?
In a dual network, 2 routers provide access to the IP network as shown in the diagram below.
However, the VoIP Gateway Card cannot take the advantage of having 2 routers as access points to
the IP network.
For example, if router A, whose IP address is assigned as the default gateway IP address of the card,
fails, VoIP communications are no longer possible; the card is not able to switch its default gateway
from router A to router B to access the IP network. For more details about the default gateway setting,
refer to "2.2.1 Network Parameters" of the VoIP Gateway Card Programming Guide.
50
Getting Started
IP Network
Router A
Router B
Default gateway
of the card:
Router A
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