The Assisted Telephony functions are listed in the following table. Assisted Telephony functions allow any Win32-based application to establish voice calls and media calls. For background information, see the Assisted Telephony overview.
| tapiRequestMakeCall | Submits a request to place a voice call. |
| tapiRequestMediaCall | Obsolete. Do not use. |
| tapiRequestDrop | Obsolete. Do not use. |
| tapiGetLocationInfo | Returns country code and city/area code information. |