correct annotation for transfer_on_hangup

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5161 43c1dc8c-776e-4df2-8ef1-6e829299be21
fixes compiler warning and result parsing

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5162 43c1dc8c-776e-4df2-8ef1-6e829299be21
fixes compiler warning and result parsing

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5163 43c1dc8c-776e-4df2-8ef1-6e829299be21