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Linksys Voice System Administration Guide
19
Deployment Scenarios
Getting Started
ITSP Service, PSTN and ISDN Access and Local Voice Mail
In this scenario, the customer takes full advantage of the LVS solution, with the SPA9000 IP PBX,
VoIP service, one SPA400 unit for voice mail service, another SPA400 for PSTN access with four
FXO ports, one ISDN Gateway for ISDN BRI access with four BRI ports, and up to 16 SPA9xx IP
phones. Optionally, analog phones or fax machines (not illustrated) can be connected to the
two phone ports on the SPA9000.
SPA9xx IP Phones
SLM224P Switch
SPA9000 IP PBX
WRV200 Router
Internet
Integrated
Access Device
Analog
Phone Lines
SPA400
for Voice Mail
SPA400
for PSTN Access
Mediatrix® 4402
BRI Gateway
ISDN
Phone Lines