“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.
Aianna and AiannaOne is a Global provider of telephony services, that was established at the vision of one man who was tired of the lack of service and quality that carriers were giving to their clients in the telecommunications industry.