“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.
Dean Connect Delivers High quality SIP termination, number porting, Dutch area codes, SIP trunks, T38 FAX support and hosted PBX in retail and white-label model.