to achieve such a result in a World-wide GSM Congress. (This event is organized annually by the GSM Association, an organization with a membership of more than 380 operators of mobile communications from about 150 countries. GSM Awards are delivered in every edition of the congress and are considered the most important of the sector.) This was to be the first of many awards won by Optimus in subsequent years. Advertising Advertising agency 1998–2008: BBDO Portugal 2008–2014: Euro RSCG Portugal Slogans Optimus September 1998 – 2003: "Falar assim, é Optimus" (To speak like this, is Optimus) 2003 – 2006: "Segue o que sentes" (Follow what you feel) 20 July 2006 – 2008: "Experimenta" (Try it, Experience it) 2008 – 2011: "De que é que precisas?" (What do you need?) 2011 – 2014 : "O que nos liga é Optimus" (What binds us together is Optimus) NOS 2014 – present : "Há mais em NOS" (There's more in NOS) ("NOS" is similar to the Portuguese word "nós", which means "us".) Financials 2011: 3,639,400 customers (1.0% increase over 2010) 42.8 SMS/month/customer (10.2 decrease over 2010) ARPU 12.90 Euro (5.6% decrease over 2010) References External links Optimus Comunicações Optimus Comunicações Optimus Comunicações Optimus Comunicações