| Sent to | PHONEEVENT | 
| Parameters | HTAPIPHONE    htPhone Specifies the TAPI DLL's opaque object handle to the phone device. | 
| DWORD    dwMsg The value PHONE_DEVSPECIFIC | |
| DWORD    dwParam1 Device specific. | |
| DWORD    dwParam2 Device specific. | |
| DWORD    dwParam3 Device specific. | |
| Comments | The TAPI DLL sends the PHONE_DEVSPECIFIC message to applications in response to receiving this message from a Service Provider. The htPhone is translated to the appropriate hPhone as the hDevice parameter at the TAPI level. The dwParam1, dwParam2, and dwParam3 paramters are passed through unmodified. | 
| See Also | Functions: TSPI_phoneDevSpecific |