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Advanced Topics in SPA9000 Administration
SPA9000 Architecture
SPA9000 Voice System Administration Guide 171
A
Architectural Component Function
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 un-provisioned client
stations.
Application server Supports advanced features such as call
park/pickup, directory, directed call pickup
and group paging, hunt groups, and shared
line appearances.
Internal music source Streams audio files to client stations (both
on-net and off-net).
The FXS1 and FXS2 can optionally be
connected to an external music source to
act as a streaming audio server (SAS).
When working in this mode, each FXS port
can handle up to 10 concurrent calls.
Administration web server Allows configuration and monitoring of the
SPA9000.
ATA with 2 FXS ports Each FXS port can be connected to analog
phones, fax machine, or an external music
source. Each port can support up to two
calls simultaneously. The FXS ports can only
register to the internal proxy server.
Call park The call park is used to maintain calls that
are parked and can handle up to 10 calls
simultaneously
Auto-Attendant AA is a scriptable auto-attendant
application that can handle up to 10 calls
simultaneously