public void HangupVideoCall() { LogManager.SystemLog.Debug(string.Format("Start UC_SDK_HangupVideoCall")); int iRet = UCInterface.UC_SDK_HangupVideoCall(); if (iRet != 0) { LogManager.SystemLog.Error(string.Format("UC_SDK_HangupVideoCall = {0}", iRet)); } LogManager.SystemLog.Debug(string.Format("End UC_SDK_HangupVideoCall")); }