Functions without Unicode Versions
The following functions are provided only in a generic version without an "A" or "W" suffix.| TAPI Function 
 | Comments 
 | 
| lineAccept 
 | The memory pointed to by lpsUserUserInfo is presumed to contain binary data for end-to-end transfer. The application
must provide data in a form ready for transmission. 
 | 
| lineAddToConference
 | |
| lineAgentSpecific
 | The memory pointed to by lpParams is private between the application and agent handler. The application must
provide data in the form specified in the agent handler extension definition. 
 | 
| lineAnswer 
 | The memory pointed to by lpsUserUserInfo is presumed to contain binary data for end-to-end transfer. The application
must provide data in a form ready for transmission. 
 | 
| lineClose
 | |
| lineCompleteCall 
 | |
| lineCompleteTransfer
 | |
| lineConfigProvider
 | |
| lineDeallocateCall 
 | |
| lineDevSpecific 
 | The memory pointed to by lpParams is private between the application and service provider. The application must
provide data in the form specified in the service provider extension
definition. 
 | 
| lineDevSpecificFeature 
 | The memory pointed to by lpParams is private between the application and service provider. The application must
provide data in the form specified in the service provider extension
definition. 
 | 
| lineDrop
 | The memory pointed to by lpsUserUserInfo is presumed to contain binary data for end-to-end transfer. The application
must provide data in a form ready for transmission. 
 | 
| lineGenerateTone 
 | |
| lineGetCallStatus 
 | |
| lineGetConfRelatedCalls
 | |
| lineGetNewCalls
 | |
| lineGetMessage 
 | |
| lineGetNumRings
 | |
| lineGetStatusMessages
 | |
| lineHold 
 | |
| lineMonitorDigits
 | |
| lineMonitorMedia
 | |
| lineMonitorTones
 | |
| lineNegotiateAPIVersion
 | |
| lineNegotiateExtVersion
 | |
| lineProxyMessage 
 | |
| lineProxyResponse 
 | The fields in the LINEPROXYREQUEST structure are always Unicode. 
 | 
| lineRegisterRequestRecipient
 | |
| lineReleaseUserUserInfo
 | |
| lineRemoveFromConference
 | |
| lineRemoveProvider
 | |
| lineSecureCall
 | |
| lineSendUserUserInfo
 | The memory pointed to by lpsUserUserInfo is presumed to contain binary data for end-to-end transfer. The application
must provide data in a form ready for transmission. 
 | 
| lineSetAgentActivity
 | |
| lineSetAgentGroup
 | Note  Group names are ignored. 
 | 
| lineSetAgentState
 | |
| lineSetAppSpecific
 | |
| lineSetCallData
 | The memory pointed to by lpCallData is in a format specified by the application or a group of cooperating
applications. The format of the data is beyond the scope of TAPI and is not converted
by TAPI. 
 | 
| lineSetCallParams
 | |
| lineSetCallPrivilege
 | |
| lineSetCallQualityOfService
 | The format of data in the provider-specific portion of the QOS structure is
beyond the scope of TAPI and is not converted by TAPI. 
 | 
| lineSetCallTreatment
 | |
| lineSetCurrentLocation
 | |
| lineSetLineDevStatus
 | |
| lineSetMediaControl
 | |
| lineSetMediaMode
 | |
| lineSetNumRings
 | |
| lineSetStatusMessages
 | |
| lineSetTerminal
 | |
| lineShutdown
 | |
| lineSwapHold
 | |
| lineUncompleteCall
 | |
| lineUnhold
 | |
| phoneClose
 | |
| phoneDevSpecific
 | The memory pointed to by lpParams is private between the application and service provider. The application must
provide data in the form specified in the service provider extension
definition. 
 | 
| phoneGetData
 | The memory pointed to by lpData is private between the application and service provider. The application must
process data in the form specified in the service provider definition. 
 | 
| phoneGetDisplay
 | The memory pointed to by lpDisplay is private between the application and service provider. The application must
process data in the form specified in the service provider definition. 
 | 
| phoneGetGain
 | |
| phoneGetHookSwitch
 | |
| phoneGetLamp
 | |
| phoneGetMessage
 | |
| phoneGetRing
 | |
| phoneGetStatusMessages
 | |
| phoneGetVolume
 | |
| phoneNegotiateAPIVersion
 | |
| phoneNegotiateExtVersion
 | |
| phoneOpen
 | |
| phoneSetData
 | The memory pointed to by lpParams is private between the application and service provider. The application must
provide data in the form specified in the service provider definition. 
 | 
| phoneSetDisplay
 | The memory pointed to by lpDisplay is private between the application and service provider. The application must
provide data in the form specified in the service provider definition. 
 | 
| phoneSetGain
 | |
| phoneSetHookSwitch
 | |
| phoneSetLamp 
 | |
| phoneSetRing
 | |
| phoneSetStatusMessages
 | |
| phoneSetVolume
 | |
| phoneShutdown 
 | |
| tapiRequestDrop
 | This function is obsolete and unavailable to Microsoft® Win32® API applications. 
 | 
| tapiRequestMediaCall
 | This function is obsolete and unavailable to Microsoft Win32 applications. 
 | 
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