For some more traditional voice calls and services, the cost of calling is made up of two parts: a Service Charge and a Network Access Charge. The Service Charge amount varies according to which service you are calling, while the Network Access Charge is what your own phone company charges you for calling these numbers.
The Service Charge is the part of the call cost that is passed on to the service provider you are calling and/or their telecoms supplier. It is intended to help cover the cost of the service being provided and organisations can select from a range of different charge rates. The Service Charge should always be clear in any promotional material advertising the service.
In addition to the advertised ‘Service Charge’, you may also be charged your phone company’s Network Access Charge, which is a standard per-minute rate that applies to all calls of this type. Every phone company charges different amounts so you should ask your network about the cost for you.