Main Article Content
Ubiquitous services pretend to interact proactively with the user, proposing solutions to some problems. Those services must to be billed in a secure and efficient form in order to guarantee confidence between customer new services tha fulfill the customer’s expectation. For this reason, ubiquitous computing is a new research area that looks for the provisión of services in a transparent way for the user in mobile environments. However, ubiquitous services have the problem of a non-existent protocol that fulfils all the mobility, identity and context requirements of such services. This paper describes the development of a ubiquitous services pilot that pretends to fulfill such requirements.