Abstract: A reception device issues a request for delivering mail information containing identification information for a broadcast station broadcasting a program that is currently watched to a mail-information delivery device. The mail-information delivery device acquires identification information for the program that is broadcast by the broadcast station, sorts mail information so that mails containing identification information for the program and identification information for the broadcast station are displayed on a higher rank, and returns a response to the reception device.

Abstract: An information apparatus with a phone function is disclosed which comprises a time measurement unit for measuring access time from ring to disconnection, a ring history storage processing unit for storing at every ring a ring history including the access time, and a ring history display processing unit for displaying a ring history with an attention calling indication attached to the access time, when subjected to a ring history display operation, if the access time is equal to or shorter than predetermined time.

Abstract: A transition request reception unit receives a request for transition between portable telephone companies from a customer terminal, and a customer determination unit determines whether the customer is qualified or not. If it is determined that the customer is qualified, an after-transition service information presentation unit presents information about an after-transition service equivalent to a service contracted before transition and about the contract to the customer terminal. A service contract unit receives contract information for the after-transition service from the customer terminal to conclude the contract and notifies the customer terminal of the result.

Abstract: An information apparatus with a phone function is disclosed which comprises a time measurement unit for measuring access time from ring to disconnection, a ring history storage processing unit for storing at every ring a ring history including the access time, and a ring history display processing unit for displaying a ring history with an attention calling indication attached to the access time, when subjected to a ring history display operation, if the access time is equal to or shorter than predetermined time.

Abstract: There is provided a travelable range calculation method which is capable of showing a range whose bounds can be actually reached from a predetermined point within a predetermined time period. An input for designating a travel start position for map information is received. For instance, a candidate site for a new shop can be input as the travel start position. Then, traveling speeds at which predetermined transportation means can travel along respective roads in a neighborhood around the input travel start position, the traveling speeds being dependent on a traffic congestion status of the neighborhood are acquired. For instance, a traveling speed on a road section A is 5 km per hour, and a traveling speed on a road section B is 5 km per hour. Then, coverable routes which can be covered from the travel start position within a predetermined time period are determined based on the traveling speeds on the roads.