Core Components of the SPA9000
•SIP Proxy and Registrar Server
–Accepts registration from client stations and proxies SIP messages.
•Media Proxy Server
–Proxies RTP packets between client stations and proxies SIP messages.
•Configuration Server
–Serves configuration files to client stations and auto configures
•Application Server
–Supports advanced features such as; Call Park/Pickup, Directory, Directed Call Pickup and Group Paging.
•Music on Hold Server
–Streams Audio Files to User’s Phones (Both
–Optionally: An External Server May be Used for Music on Hold
•Web Server
–Used for Configuration and Monitoring System Settings
•ATA with 2 FXS Ports
–Each FXS port can be connected to analog phone or fax machine.
–The two FXS ports can only register to the internal proxy server.
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