Message automatic notification system, message automatic notification method, communication terminal device, and recording medium

A message automatic notification system for sending a message via a communication network to at least another other communication terminal devices registered in a communication terminal device, the communication terminal device comprising:

• a control circuit;
• a communication circuit;
• and
• a memory unit,
• wherein the control circuit causes a message-sending condition to be registered in the memory unit, obtains presence information from the other communication terminal device registered in the memory unit via the communication circuit from the communication network, judges whether the message-sending condition where a message is sent when the presence information turns to be a predetermined state is established based on the obtained presence information, and sends via the communication circuit a message previously registered by a user in the memory unit when judged that the message-sending condition is established.

A message automatic notification method of sending a message via a communication network to at least another communication terminal device registered in a communication terminal device, comprising:

• causing a message-sending condition to be registered in the communication terminal device;
• obtaining presence information from the other communication terminal device registered in the communication terminal device via the communication network;
• judging whether the message-sending condition where a message is sent when the presence information turns to be a predetermined state is established based on the obtained presence information;
• and
• sending a message previously registered by a user in its own communication terminal device when judged that the sending-condition is established.

A communication terminal device for sending a message via a communication network to at least one of the other communication terminal devices registered, comprising:

• a sending-condition registering circuit for registering a message-sending condition;
• presence information obtaining means for obtaining presence information via the communication network from the other communication terminal device registered;
• judging means for judging whether the message-sending condition where a message is sent when the presence information turns to be a predetermined state is established based on the obtained presence information;
• and
• message sending means for sending a message previously registered by a user in its own communication terminal device when judged that the message-sending condition is established.

A communication terminal device for sending a message via a communication network to at least another communication terminal devices registered, the communication terminal device comprising:

• a control circuit;
• a communication circuit;
• and
• a memory unit,
• wherein the control circuit causes a message-sending condition to be registered in the memory unit, obtains presence information from the other communication terminal device registered in the memory unit from the communication network via the communication circuit, judges whether the message-sending condition where a message is sent when the presence information turns to be a predetermined state is established based on the obtained presence information, and sends via the communication circuit a message previously registered by a user in the memory unit when judged that the message-sending condition is established.