Mobile communications which use presence attributes

In a mobile telecommunications network including a plurality of user devices each configured to communicate across the network via at least one mode of communication, a method of a first user device obtaining an indicator regarding the suitability of at least one mode of communication in relation to at least one other user device, the method comprising: determining first contextual information in relation to the first user device; determining second contextual information in relation to each of the at least one other user device and for each of the at least one mode of communication, determining the suitability indicator using the first and second contextual information. The invention aims to use contextual information such as status, location, current activity, phone capabilities, network capabilities, time-zone or battery status from each user in a communication to enhance the interface and user experience. Therefore data will be provided as appropriate to the user, taking into account their job at hand or situation at any given point in time.