This study targets to capture the way in wich the older consumer (age 50+) perceives and uses the mobile cellular service and the celular phone as well. That work also proposes an model that reveals the way and constraints or barriers these consumers have to full use of mobile cellular service. By using an qualitative approach, some interviews was done with older consumers. The interviews was recorded and transcripted for analisys. The results show the specificities of use for those consumers, notably the low perception they have regarding the phones as an multifunction devices with potential to help them in many tasks of their lives. The work also proposes an model that show the presence of multiple dimensions of constraints to cellular phone and service use. Each constraint reveiling an specific set of barriers to full use of telephony and cellular phone.