fix issue with default values, references #204

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5307 43c1dc8c-776e-4df2-8ef1-6e829299be21
Fix for line context to be retrieved from global default (fixes #204)

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5308 43c1dc8c-776e-4df2-8ef1-6e829299be21