| 摘要 |
The invention intends to improve an inconvenience of the conventional system that cordless hand sets must be registered in advance, and to reduce the power consumption in the waiting state. The digital codeless telephone according to the invention uses a public telephone network. In the system, the transmitting party calls the receiving party by means of a message having the group identification code for direct communication between personal stations and the waiting mode change request information. The system makes the receiving party prepare for receiving, by an event that the receiving party changes the waiting mode according to the message. |
