Over the last decade the use of mobile phones has increased dramatically everywhere by people from different cultural backgrounds. However, while such technological adoption move on at an ever increasing pace all over the world, the key problem for designers and developers of mobile phones is how to develop mobile phone services that effectively support the dynamic and flexible communication needs of such diverse groups of users. To counter this problem, this thesis focused on establishing how people from different cultural backgrounds use mobile phones to achieve their communicative, social and informational goals. Questionnaires and interviews were undertaken and analysed to achieve this. The findings from the analysis led to the development of two prototypes missed call services; the icon-based missed call service (IBMCS) and the personalised icon-based missed call service. Several key findings emerged from this research. For example, mobile phone users in the Sudan and the UK differed in the way they used their mobile phones especially in the public places. British participants were more comfortable using their mobile phones in public sphere. British and Sudanese stated that they would like to use an IBMCS to support their communication needs. However, Sudanese users were more keen than the British participants on personalising the developed missed call service to aid the management of their communication needs and to better coordinate their activities. The evaluation of the personalised IBMCS highlighted an important redesign implication, such as allowing the receiver to manipulate the receipt of missed calls in public settings.