Destination
Leading No. IP Address
2 200.45.11.35
3 199.176.64.1
: :
[Explanation]
Calls are routed to the IP address of each V-IPGW/IP-GW card based on the leading number dialed.
Gateway Groups
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]
PBX-1
V-IPGW
Private IP
Network
PBX-2
IP-GW(1)
IP-GW(2)
PBX-3
IP-GW(3)
IP-GW(4)
Gateway Settings List
1. IP-GW(1): GW Group-1
2. IP-GW(2): GW Group-1
3. IP-GW(3): GW Group-2
4. IP-GW(4): GW Group-2
Office A (GW Group-1)
Dials "123XXX"
Office B (GW Group-2)
Busy
Rerouted
Leading Number
List
1. 1xx: GW Group-1
2. 2xx: GW Group-2
When "123XXX" is dialed, the
call is routed to GW Group-1. However the lowest-numbered device (IP-GW(1))
is busy or not available, so the call is rerouted to IP-GW(2).
Note
For information about assigning groups when using the
IP-GW card, refer to the Programming Guide of
the VoIP Gateway Card.
Document Version 2013-05 Feature Manual 283
13.1.26 Private Network Features—VoIP (Voice over Internet Protocol)
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