VoIP

Asterisk

Asterisk is an open source PBX software that can be installed in any linux based server. Asterisk is most widely used open source PBX throughout the world as it is cost effective with good quality of services.

Since asterisk is an open source system it is compatible with all VoIP servers, CPEs & other equipment available in the market. 

Asterisk server can be accessed remotely using free 3rd party tools so that remote support can be provided.