lineSwapHold

  • Article

The lineSwapHold function swaps the specified active call with the specified call on consultation hold.

LONG WINAPI lineSwapHold(
HCALL hActiveCall,
HCALL hHeldCall );

Parameters

  • hActiveCall
    The handle to the active call. The application must be an owner of the call. The call state of hActiveCall must be connected.
  • hHeldCall
    The handle to the consultation call. The application must be an owner of the call. The call state of hHeldCall can be onHoldPendingTransfer, onHoldPendingConference, or onHold.

Return Values

Returns a positive request identifier if the function is completed asynchronously, or a negative error number if an error occurs. The dwParam2 parameter of the corresponding LINE_REPLY message is zero if the function succeeds or it is a negative error number if an error occurs. Possible return values are:

LINEERR_INVALCALLHANDLE, LINEERR_OPERATIONUNAVAIL, LINEERR_INVALCALLSTATE, LINEERR_OPERATIONFAILED, LINEERR_NOMEM, LINEERR_RESOURCEUNAVAIL, LINEERR_NOTOWNER, LINEERR_UNINITIALIZED.

Remarks

Swapping the active call with the call on consultation hold allows the application to alternate or toggle between these two calls. This is typical in call waiting.

Requirements

Runs On Versions Defined in Include Link to
Windows CE OS 1.0 and later Tapi.h   Coredll.lib

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

LINE_REPLY

 Last updated on Tuesday, July 13, 2004

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