“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.
IVR Guru conceiving a great CLOUD TELEPHONY in India. It is a technology that manages business service, sales, support, public or social rapport and online industry exercise exhausted control over their client communications.