Asterisk is open source telephony software that provides fully featured phone system / PBX functionality for business use. It allows a business take advantage of the features and cost savings of VoIP while also being able to connect to traditional telecom services in order to maintain reliability of voice services as well as emergency services. Asterisk works seamlessly with most industry standard IP phones and gateways.
In order to make Asterisk more user friendly and feature rich, a variety of business phone systems have been developed using Asterisk at their core. These products can help you take advantage of the cost savings of open source telephony and VoIP without having to be a programmer.
