 as brands for flagship products or names for entire companies.Local numbers are also occasionally used, such as +1-514-AUTOBUS or STM-INFO to reach the Société de transport de Montréal, but are subject to the constraint that the first few digits are tied to a geographic location - potentially limiting the available choices based on which telephone exchanges serve a local area.The main advantages of phonewords over standard phone numbers include increased memorability and increased response rates to advertising.