“Extension” - is the extension of the telephone line (PBX) or the Centrex system. It works as an association and allows calling to certain telephone sets without the necessity of dialing the telephone number, but only by dialing a short combination of digits, reaching the desired subscriber.
Orca Communications (OrcaCom) delivers national & international VoIP telecommunications to small, medium and large businesses. We provide VoIP calls, connections and the hosted PBX system so you only have to deal with one phone company.