“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.
Dialdigit lets you use your Internet connection to make and receive phone calls using our VoIP network. We offer a business measured plan, monthly packages calling along with high quality Internet phones and VoIP devices.