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http://wiki.sipfoundry.org/display/oldxx/Architecture+Diagramhttp://wiki.sipfoundry.org/display/oldxx/Architecture+Diagram

The sipXecs System Architecture Diagram

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Highlights

  • Modular: 12 different server components that can coexist on one server HW or be distributed to different systems
  • Resilient: Offers HA redundancy between call control components
  • Scalability: Load balancing using the DNS SRV system
  • SIP Proxy based: sipXecs is not based on a B2BUA but implements a true SIP proxy architecture
  • B2BUA server (sipXbridge) for connecting to Internet Telephony Service Providers (ITSPs)
  • Conference bridge included in package
  • Freeswitch based Auto Attendant and Voicemail integrated *
  • Better Voice Quality: Media goes direct point-to-point between the end points and never through the call control system
  • Standard SIP: sipXecs is all about a standards compliant implementation
  • Plug & Play Management: Phones are managed plug & play from within the system
  • IT Integration: LDAP, SOAP, and database integration. System looks like and operates like an IT application
  • No Special HW: sipXecs does not require any special HW. A standard Intel server will do

 

 

Given its architecture, the sipXecs system is designed to interoperate with other third party feature servers. In addition, as we accomplished our objective of a truly distributed system, several instances of every component can be run on dedicated hardware and in different geographical locations to render a very scalable system. The sipXecs Configuration Server provides plug & play management for core components, all feature servers, as well as connected peripherals such as phones and gateways. An XML-based plug-in framework allows easy inclusion of additional components, both feature servers as well as additional peripherals. Documentation exists about how to add support for additional [phones] and [xecsuser:gateways].

While the different components of the sipXecs system could be used stand-alone, the focus of the project has been to provide a complete sipXecs IP PBX system out-of-the-box. On Fedora, Red Hat, Debian and Gentoo distributions, the sipXecs system can be installed easily using the distributions's respective package management system from our repository.

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