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Asterisk Architecture. Architecture APIs Defined for loadable modules Facilitates hardware and...
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APIs Defined for loadable modules Facilitates hardware and protocol abstraction The Asterisk core does not have to worry about details of how a caller is connecting, what codecs are in use, etc.
Transcript of Asterisk Architecture. Architecture APIs Defined for loadable modules Facilitates hardware and...
Asterisk Architecture
Architecture
APIs Defined for loadable modules
Facilitates hardware and protocol abstraction
The Asterisk core does not have to worry about details of how a caller is connecting, what codecs are in use, etc.
Channel API Handles the type of connection a caller is
arriving on VoIP connection ISDN PRI…
Dynamic modules loaded to handle the lower details of these connections
Application API Allows various task modules to be run to
perform various functions Conferencing Paging Directory Listing Voicemail…
Codec Translator API Loads codec modules to support various
audio encoding and decoding formats GSM µ-law/A-law G.729 MP3…
File Format API Handles the reading and writing of various file
formats for the storage of data in the filesystem GSMsf .wav H.263…
Asterisk’s core (1) PBX Switching
Connects calls together between various users and automated tasks
Connects callers arriving on various hardware and software interfaces
Application Launcher Launches applications which perform services
Asterisk’s core (2) Codec Translator
Uses codec modules for the encoding and decoding of various audio compression formats
Different codecs available to suit diverse needs
Scheduler and I/O Manager Handles low-level task scheduling and system
management for optimal performance under all load conditions
