Device Access

The main concepts and operations for basic and supplemental device control are covered in Microsoft Telephony Programming Model under Device Control, with the exception of Phone Devices, which is covered later in this portion of the SDK.

Please note that the operation listings in the overview mentioned in the previous paragraph specifically address TAPI 2.2 (TAPI/C) functions. These functions match to TSPI operations with a prefix of "TSPI_". For example, if a TAPI 2.2 application calls lineGetDevCaps, TAPI invokes the TSP's implementation of TSPI_lineGetDevCaps.

The following material addresses device control aspects that are specific to authoring a TSP.