“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.
We at Jaguar Communications Inc. are dedicated to servicing our customers by eliminating the many levels of service providers that must be contacted to accomplish the most ordinary changes to your telecommunications infrastructure.