4.3.2.1 Gateway Groups
Description
It is possible to automatically reroute outgoing VoIP calls according to preassigned gateway groups.
A gateway device can be assigned a gateway group number based on its IP Address. When a call is made
using a leading number allocated to a gateway group, it is routed to the lowest-numbered available device
within that group. In other words, if the lowest-numbered device is busy or not available, the call slides to the
next available device.
[Example]
When "123XXX" is dialled, the call is routed to GW Group-1. However the lowest-numbered device
(V-IPGW(1)) is busy or not available, so the call is rerouted to V-IPGW(2).
386 Feature Guide
4.3.2 Voice over Internet Protocol (VoIP) Network