Directory assistance charges occur when someone calls the telephone company to obtain an unknown telephone number.
The telephone company has a charge for this service, and ITD will pass that charge on to the customer. The charge may vary based on the number in question: in-state or out-of-state.
Voice services include dial tone and telephone support as well as consulting, design, and engineering of voice technologies and applications.
Telephones are used to communicate between distant points. Today's desktop, mobile, and soft phones are equipped with a multitude of functionality to promote communication and collaboration.