Highlighted features of Elastix (VoIP/IP telephony) and some of the highlighted features
Elastix has features and services available like: IP Telephony, Mail Server, Fax Server, Conferences, Instant Messaging Server, among others. Elastix has a repository of external modules. Modules can also be develop for unique business needs
Interactive voice response
Voice conferencing with conference room
Follow-me, Ring group
Click to dial
Paging and Intercom
Calendar integration for voice notification
Support for any SIP/IAX Phones
Such list of features can complete with any advanced IP PABX and communications system as the end user experience goes. Can be deployed and replace any Advance provisory PABX system and provide much more.
Elastix PABX/Unified Communication System being Open source and Open standard makes this offering even better as any integration and additional feature is always a module away.