There is no need for permanent network connections because mobile agents may be created off-line and then launched into the network. Since mobile agents run autonomously, they contact the user as required. Mobile users gain higher reachability. A significant increase in user-reachability is achieved by using mobile agents to find their user, regardless of current position. Once found, the agent may ask for further instructions or deliver results.
Users can customise the way they access net-based services.
For instance, a service request with special user preferences may be issued to a device in the office whilst the results will be delivered to a home device as soon as they become available. The way a message is delivered can vary according to context, as defined by the user's preferences. AC346 - ACTS Project, Deliverable 01b, 1998.