Fixed a problem with voicemail that was not including extensions that use a number alias.

git-svn-id: http://fusionpbx.googlecode.com/svn/trunk@7229 e2954ef0-caed-11de-bd98-e341d93cc3cc
Add number_alias to the SQL select.

git-svn-id: http://fusionpbx.googlecode.com/svn/trunk@7230 e2954ef0-caed-11de-bd98-e341d93cc3cc