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

Return values
Zero indicates success. A non zero 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: dynril.h.
Dll Library: dynrildll.dll.

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