Patent ID: 8229419

Claim:
A communication system comprising: a plurality of base units disposed within a physical location, wherein each of the plurality of base units is configured to provide, for a cordless handset, a telecommunication connection to one or more communication devices external to the physical location; and the cordless handset, wherein the cordless handset is configured to communicate wirelessly with each of the plurality of base units, wherein the cordless handset includes: display means for displaying information; connection-status-information obtaining means for obtaining connection-status information from at least one of the plurality of base units, the connection-status information indicating whether a corresponding base unit is performing communication; and display controlling means for controlling the display means to display the connection-status information obtained by the connection-status-information obtaining means, wherein displaying the connection-status information includes displaying the connection-status information of the corresponding base unit along with an identifier of the corresponding base unit, wherein the identifier is unique among the plurality of base units, wherein the connection-status-information obtaining means is configured to obtain information including: a waiting status indicating that the base unit is not performing communication with any other cordless handset and that the base unit is not performing communication with any external telecommunication circuit, information indicating an internal-line-communication status, wherein the internal-line-communication status specifies that the base unit is only performing communication with another cordless handset, and information indicating an external-line-communication status, wherein the external-line-communication status specifies that the base unit is performing external-line communication with an external telecommunication circuit, and wherein the display controlling means is configured to display information on the display means in such a manner that the waiting status, the internal-line-communication status, and the external-line-communication status are visually distinguishable from each other.