“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.
Gridare.com provides businesses with hosted PBX solutions complete with time based routing, flexible call rules and competitive call rates. We also offer cost effective 1300 and 1800 numbers.