This tutorial describes how the client applications can retrieve the call and line information from the telephony API for applications.
The telephony application for application can be used to retrieve the information about different types of lines like voice, data and fax. The methods of the CTelephony class are used to retrieve the information. The client applications can get simple line status for data and fax calls and for voice calls more detailed information is available. This tutorial describes the different types of information that can be retrieved by the client applications.