A communications terminal is connected to at least one of a telephone line and a local area network and includes a first memory, a second memory, a detector, and an indicating mechanism. The first memory stores service information including availability information representing availability of a specific communications service provided by a service provider through at least one of the telephone line and the local area network and condition information suitable to the specific communications service. The second memory stores message information indicating that the specific communications service is not usable. The detector is configured to detect whether the service information stored in the first memory is appropriate each time the communications terminal starts a call connection operation to use the specific communications service based on the condition information. The indicating mechanism is configured to read the first memory and to indicate the message information indicating that the specific communications service is not usable when the detector detects that the service information stored in the first memory is inappropriate.