NetworkDropSwapCall
This function drops the held call (if it exists).
DWORD NetworkDropSwapCall(void);
Parameters
none

Return values
Zero indicates success. A negative error number indicates that an error occurred. For additional error information, enable the library debug mode.

Requirements
OS Versions: Windows CE 1.0 and later.
Header: dyntapi.h.
Dll Library: dyntapidll.dll.

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