Patent ID: 6868337

Claim:
A navigation system comprising: a portable communication device, the portable communication device including a subsystem wherein a user of the portable communication device may designate a first icon to represent the portable communication device and a second icon to represent a second communication device, the second communication device being identified by at least a phone number listed in a database in the first communication device; and a navigation server, connected with the portable communication device via a network, for providing a prescribed navigation service online in response to a request of the portable communication device, wherein upon receipt of position information representing a present position of the portable communication device, the navigation server sends map information including the present position of the portable communication device, so that the portable communication device displays the first icon over a position on the map information representing the present position of the portable communication device, and the portable communication device displays the second icon over a position on the map information representing the present position of the second communication device, and the portable communication device also indicates an azimuth thereof as an angle departing from a reference direction corresponding to a north direction of the map information.