“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.
AJP''''''''''''''''s Fully Internet based Telecommunication Voice (FIT Voice) service comes with the mission to extend affordable telephony through advanced technology to under-served populations in developed & developing countries.