I would suggest that TER include the search field for telephone number in the quick search section of search - I find that is one piece of data I always search first, particularly when searching ads from other sources as bona code providers almost always post a tel number that is listed under reviews, but the fakes and scams seem to change constantly - if the tel number search is unproductive, I usually move on to search others.  With its current location, after inserting the tel number, it takes time and effort, particularly on a smart phone to be scrolling down to the search tab - whereas with quick search (such as when searching a TER ID number, the search tab is right there and can usually be clicked for the visible screen after inserting the tel number.