Search Results - (("_ telecommunications system.") or ("oral communication services."))~

Your search - (("_ telecommunications system.") or ("oral communication services."))~ - did not match any resources.

Perhaps you should try some spelling variations:
"_ telecommunications system." » "_ telecommunication system.", "_ telecommunication systems.", "_ telecommunications sector."
"oral communication services." » "oral telecommunications services.", "personal communication services."

You may be able to get more results by adjusting your search query.

If you are trying to use Boolean operators, they must be ALL CAPS: (("_ telecommunications system.") OR ("oral communication services."))~.
Removing quotes may allow a broader search: (( _ telecommunications system. ) or ( oral communication services. ))~.
Adding a wildcard symbol may retrieve word variants: (("_ telecommunications system.") or ("oral communication services."))*.