Linksys SPA9000 Administration Guide

Linksys Voice System Administration Guide 18
Deployment Scenarios
Getting Started
Deploying the LVS with ITSP Service, PSTN Access and Local Voice Mail
In this scenario, the customer wants to use ITSP service for reduced long distance fees but
needs to support legacy local telephone numbers (for example, to receive calls over the
original legacy telephone number, or to route local telephone calls). This customer also prefers
local voice mail service. The LVS is deployed with the SPA9000 IP PBX, VoIP service, one SPA400
unit for voice mail service, another SPA400 units for PSTN access with four FXO ports, and up to
16 SPA900 series 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

Linksys SPA9000 Specifications

Physical Interfaces

Ethernet ports	2 10/100BaseT RJ-45
Phone ports	2 RJ-11 FXS
Ring voltage	40-55 VRMS
Ring frequency	10 Hz - 40 Hz
Maximum ringer load	3 REN

Power

On-hook voltage	-50 V NOMINAL
Off-hook current	25 mA min
Terminating impedance	Configurable, including 600 ohms