fixes compile issue with conference enabled on astTrunk++, closes #74

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4381 43c1dc8c-776e-4df2-8ef1-6e829299be21
fixes compile issue with conference enabled on astTrunk++, closes #74

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4382 43c1dc8c-776e-4df2-8ef1-6e829299be21