ADNOS, the Advanced Dynamic Number Overlay System is designed to allow for the easy substitution of one phone number for another. Due to the detailed level of reporting it is used by serveral online directory services so that call statistics can be tracked and provided to customers. It can also be used to gain an insight into the success of advertising campaigns by providing different numbers for the same destination under different circumstances or simply to allow people to call a different type of number (for example, providing a geographic 01 or 02 number to point to an 0800 for mobile users).
This document explains how ADNOS can be used. To learn how to make specific requests, please refer to the technical documentation.