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1-12 About Vanguard 7300
Vanguard 7300 Applications
Large Networking
Solution Using
Multiple Vanguard
7300’s
Figure 1-7 illustrates multiple Vanguard 7300 devices in very large networks. In
this example, traffic is distributed across a numbers of Vanguard 7300’s for
load-balancing and redundancy. Network connections are made via multiple T1/E1
interfaces.
The example shows redundant Vanguard 7330s, each connected to multiple
applications. Note that each Vanguard 7330 has a voice connection to the PBX and
an Ethernet connection to the host server.
Figure 1-7. Large Network Solution With Redundant Vanguard 7330s
Small-to-Medium
Alternate Carriers
Voice Gateways
Figure 1-8 shows an application in which a Vanguard 7300 Series router is used in
large alternate carriers and small central office (CO) environments. The Vanguard
7330 router, equipped with T1/E1/PRI cards with Voice Server PMCs, supports
Public Switched Telephone Network (PSTN) voice applications.
Figure 1-8. Small-to-Medium Alternate Carriers Voice Gateways