Context-aware mobile telephony

The mostly used application is still telephony between two parties. Here the called party and the environment of the called party is usually interrupted by an incoming call. The social acceptability of phone usage evolves over time and differs according to the group of users, types of people, and also to the country. One common understanding that is shared over most of the users is that the one who uses the mobile phone is responsible to set the phone in a mode that is appropriate for the situation he or she is in. In most cases this is a binary decision switch the phone offor leave it on! This puts the trade-off: