It works as advertised, though we found it only nominally less complicated than the alternative method of dialingin a street name one letter at a time with the MMI dial.
Ask attendees who are not dialingin on a cell phone to place their cell phones on mute and keep them away from the telephone, as this can cause a loud buzzing noise.
The fix, he argued, is to better understand the location of a cellphone user--a solution that will also reduce inefficiency of cell towers that broadcast radio signals and "listen" to cellphone radios in all directions rather than dialingin their "attention" on the user.