All you do is call the access number, follow the prompt and enter the full (including 00 and the country code) number you wish to call and that is it your connected! Need more detail then click here.
Nagcomm telephone services are provided by Just-dial.
Calls are charged per your current telephone providers' policy - with BT that is per second billing with a 5p minimum call charge. Calls are charged from the time of connection to the Just-dial service. For full details of the terms and conditions please click here.