“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.
Windstream Supply, Inc., formerly Alltel Supply, Inc., is an innovative distributor of Telecommunications products & services. We offer solutions to the technical, logistic, and financial challenges facing today's communications providers.