Abstract: An electronic wearable device is disclosed. The electronic wearable device includes a pendant attached to a necklace; the pendant comprising a base and a plurality of interchangeable faceplates; wherein each of the plurality of interchangeable faceplates has a different design and is configured to attach to the base to hide the base.

Abstract: A display device includes a first rotation member configured to rotate, a second rotation member configured to rotate, the second rotation member being spaced apart from the first rotation member, a conveyance member that is extended between the first rotation member and the second rotation member, is configured to be conveyed between the first rotation member and the second rotation member in accordance with respective rotations of the first rotation member and the second rotation member, and has an inner surface and an outer surface, an abutting movement member that is disposed between the first rotation member and the second rotation member, and is configured to move to cause the conveyance member to be partially pushed up while being abutted against the inner surface, and a display member having flexibility that is attached to the outer surface, and displays an image using an organic light emitting phenomenon.

Abstract: Disclosed are a method and an apparatus by which user equipment controls transmission power of a sidelink signal in a wireless communication system that supports a sidelink, according to various embodiments. Disclosed are a method and an apparatus by which user equipment controls transmission power of a sidelink signal in a wireless communication system that supports a sidelink, wherein the method comprises the steps of: calculating required power for each antenna unit included in a plurality of antenna units to which the sidelink signal is transmitted; determining reference transmission power on the basis of the required power calculated for the plurality of antenna units; and allocating transmission power for the plurality of antenna units on the basis of the reference transmission power.

Abstract: A method of performing hook switching on behalf of a wireless handset based on wireless charging. The method includes obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset. The method further includes determining whether the handset identifier matches a stored identifier, and based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

Abstract: A method is disclosed for performing extension mobility via a headset connection. The method includes receiving a headset identifier from a headset. Also, the method includes, in response to receiving the headset identifier, sending the headset identifier to a device management server. Further, the method includes receiving a call control user identifier from the device management server, and sending, to a call control server, the call control user identifier. Still yet, the method includes receiving, from the call control server, a configuration profile associated with the call control user identifier. One or more settings of a desk phone are configured using the configuration profile.

Abstract: A radio base station that controls radio communication with a radio terminal using a first radio frequency includes: a controller that controls a period in which the radio terminal enables to measure a second radio frequency different from the first radio frequency; a transmitter that transmits a control signal including information regarding the second radio frequency and the period to the radio terminal; and a transfer unit that transfers data addressed to the radio terminal in a case where the data occurs during the period.

Abstract: Apparatus and methods concerning call routing are disclosed. As an example, one apparatus includes an interface circuit configured to route calls, as data communications, between a cellular network or PSTN and a plurality of communication devices on an IP network. In response to receiving a first call notification from one of a plurality of mobile devices, a processing circuit of the apparatus caches the call notification for a period of time in a first database. A first call notification indicates a source number and a destination number. In response to a first incoming call via the cellular or PSTN network from the source number included in the cached call notification, the processing circuit redirects the call to the destination number indicated in the call notification via the cellular or PSTN network.

Abstract: An electric tool system, including an electric tool and a charger. The electric tool system includes: a voice obtaining component, obtaining voice information from a user; and a control module, obtaining instruction information generated based on the voice information, and controlling the electric tool system based on the instruction information to perform a corresponding action, where the electric tool system includes: a voice processing component, at least configured to generate information that corresponds to the voice information and satisfies a transmission format of a communications component; and the communications component, sending the information processed by the voice processing component to a server, receiving response information from the server, and providing the response information to the control module, where the instruction information includes the response information.

Abstract: A method of performing hook switching on behalf of a wireless handset based on wireless charging. The method includes obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset. The method further includes determining whether the handset identifier matches a stored identifier, and based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

Abstract: Systems and methods for providing additional video call transfer functionality are disclosed. The systems and methods can enable a video call between a first user equipment (UE) and a second UE to be transferred to a video call between the second UE and a third UE either a video call or an audio call. The systems and methods can also enable the third UE to accept a transferred video call or to request that the video call be downgraded to an audio call. The systems and methods can incorporate a multimedia resource function (MRF) to connect to the second UE while the transfer is being negotiated and effected. The MRF can provide an audio stream and a video stream to the second UE to provide a “video hold” feature—to prevent the video call from dropping to an audio call automatically or dropping altogether.

Abstract: Various embodiments of the present disclosure are directed to a gaming system and method providing a card game wherein for a plurality of plays of the game, the gaming system enables the player to save cards for a subsequent play of the card game. In one embodiment, for a first play of the card game, the gaming system enables the player to select a first quantity of cards to save for a subsequent play of the game. In this embodiment, for a second play of the card game, the gaming system enables the player to use zero, one or more of the previously saved cards for the current play of the card game. The gaming system also enables the player to select new cards from a displayed second hand of cards to add to and/or replace any previously saved cards to save for a subsequent play of the game.

Abstract: Apparatus and methods concerning call routing are disclosed. As an example, one apparatus includes an interface circuit configured to route calls between a cellular network or PSTN and a plurality of communication devices on an IP network, each of the plurality of communication devices corresponding to a respective telephone extension. In response to receiving a first call notification from one of a plurality of mobile devices, a processing circuit of the apparatus caches the call notification for a period of time in a first database. A first call notification indicates a source number and a destination number. In response to a first incoming call via the cellular or PSTN network from the source number included in the cached call notification, the processing circuit redirects the call to the destination number indicated in the call notification via the cellular or PSTN network.

Abstract: Disclosed are a method and a device for recovering an error without the retransmission of a data frame in a wireless LAN. The method for recovering an error in a wireless LAN may comprise the steps in which: a sender STA transmits a data frame to a receiver STA; if the sender STA does not receive a block ACK frame of the data frame from the receiver STA, the sender STA determines the reason for the non-reception of the data frame; if the sender STA determines that the reason for the non-reception of the data frame is the failure of transmission of the block ACK frame after the receiver STA receives the data frame, the sender STA transmits a PBAR data frame to the receiver STA; and the sender STA receives a PBAR block ACK frame from the receiver STA as a response to the PBAR data frame.

Abstract: An apparatus including at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to obtain, over a series of times, information related to at least one of spatial properties and frequency properties of a channel used in a directional communication between a communication network control element or function and a communication element, to quantify the information related to at least one of spatial properties and frequency properties into a metric, to track whether the metric is smaller than a first threshold or greater than a second threshold during a predetermined period of time, and to decide to use a first transmission mode or a second transmission mode on the basis of a result of the tracking.

Abstract: Disclosed are a method and a device for recovering an error without the retransmission of a data frame in a wireless LAN. The method for recovering an error in a wireless LAN may comprise the steps in which: a sender STA transmits a data frame to a receiver STA; if the sender STA does not receive a block ACK frame of the data frame from the receiver STA, the sender STA determines the reason for the non-reception of the data frame; if the sender STA determines that the reason for the non-reception of the data frame is the failure of transmission of the block ACK frame after the receiver STA receives the data frame, the sender STA transmits a PBAR data frame to the receiver STA; and the sender STA receives a PBAR block ACK frame from the receiver STA as a response to the PBAR data frame.

Abstract: In a wireless communication system including a slave device, and a master device wirelessly connected to the slave device, the slave device includes a wireless communicator that performs wireless communication with the master device, a power supply unit that supplies power to each unit of the slave device, an interrupt detector that detects various interrupts, and a controller that controls the entire slave device, the interrupt detector supplies the power from the power supply unit to each unit of the slave device when detecting a timer interrupt occurring at predetermined intervals, and the controller performs control to perform an initialization process of the wireless communicator when the power is supplied from the power supply unit to each unit of the slave device, and perform an entire initialization process of the slave device when a capture signal is received via the wireless communicator.

Abstract: A power supply control method and a wireless terminal. The method includes, in a part or all of a time period during which a wireless terminal is in a dormant state, stopping supplying power to some or all circuits of a radio frequency circuit in the wireless terminal, where the dormant state includes at least one of a dormant state in a discontinuous transmission (DTX) period and a dormant state in a discontinuous reception (DRX) period and the problems of electric energy waste and service life reduction of a wireless terminal are resolved.

Abstract: Systems and methods to for wireless power transfer are provided. A transmit control module generates a sequence of resonant drive frequencies for a transmit coil. The transmit control module adjusts the resonant frequency of the transmit coil according to the sequence of resonant drive frequencies. A receive control module provides payment verification to the transmit control module and receives the sequence of resonant drive frequencies from the transmit control module in return. The receive control module adjusts a resonant frequency of a receive coil according to the sequence of resonant drive frequencies to match the resonant frequency of the transmit coil. The resonant frequencies of the transmit and receive coils change at the same time to maintain coupling and efficient power transfer.

Abstract: A monitoring system for an energy storage system is provided. The monitoring system for an energy storage system includes a power conversion system controlling charging and discharging of a battery; a charging control unit receiving data from the power conversion system and controlling the power conversion system; and a system control unit receiving data from the charging control unit and transmitting control data to the charging control unit, wherein the system control unit and the charging control unit transmit and receive data according to a priority if data traffic is equal to or higher than a certain level, and when the data traffic is the equal to or higher than the certain level, the charging control unit transmits data to the system control unit only if control data is not transmitted from the system control unit.

Abstract: An image forming system includes multiple image forming apparatuses and a mobile terminal. The mobile terminal establishes communication connection in a remote operation mode with a parent apparatus (one of the image forming apparatuses), the remote operation mode being a mode in which the mobile terminal operates as a remote operation apparatus of the parent apparatus. The mobile terminal displays an operation screen received from the parent apparatus, accepts a user operation provided through the operation screen, and transmits first setting information based on the user operation to the parent apparatus. The parent apparatus receives the first setting information from the mobile terminal and determines a setting target child apparatus. The parent apparatus transmits second setting information based on the first setting information to the setting target child apparatus, and the setting target child apparatus sets setting content based on the second setting information received from the parent apparatus.

Abstract: An approach is disclosed for providing an instant location service. At a wireless device of a first user, mapping information of a second user is received over a wireless network. The mapping information specifies position of the second user within a prescribed proximity of the wireless device. The first user is notified of the location of the second user based on the received mapping information. A communication session is selectively initiated by the wireless device, over the wireless network to the second user.

Abstract: A multi-display device can interface with two or more different types of docking stations. The device can determine the type of dock and change the pin outs for a connector to interface with that dock. Once docked, the device can determine a charge status for the device and the dock to present the status to the user. Further, the dock can enter one of several modes, including a call receipt mode and an entertainment mode. The modes allow for expanded functionality for the device while docked. Two particular docks, the laptop dock and the smart dock, provide special functionality with the device.

Abstract: The present invention has an object to provide a communication system capable of avoiding congestion in downlink communication or uplink communication and a shortage of radio resources arising therefrom. In the present invention, in a communication system including a normal user equipment (normal UE) that performs human to human communication and a machine type communication device (MTCD) that performs machine to machine communication, a base station device transmits a paging message to the normal UE and the MTCD for calling the normal UE and the MTCD. The paging message contains, for example, an equipment identity (UE-ID). A maximum number of equipment identities (UE-IDs) that can be accommodated within this paging message is set individually for the normal UE and the MTCD. Alternatively, the paging message contains a calling indicator in place of the equipment identity of the MTCD (UE-ID of MTCD).

Abstract: A data communication device includes a communication unit that performs a communication in accordance with a standard of a short-range wireless communication; a storage unit that stores therein, among profiles that conform to the standard of the short-range wireless communication and that define a method of using a protocol, a first profile in which multiple services are settable and in which identification information is related to the services; and an arbitrating unit that, when an application is to be installed, adds or updates a service used by the application with regard to the first profile in accordance with the identification information that is related to the service.

Abstract: The present invention concerns an interconnect device and process for connecting a first network to a second network, comprising first connecting means for connecting the interconnect device to the first network, second connecting means for connecting the interconnect device to the second network, the second connecting means being connected to the first connecting means. The first connecting means and second connecting means are intended to permit a communication between a first terminal located on the first network and a second terminal located on the second network. The interconnect device detects a voice communication termination by the second terminal. If the voice communication has been initialized by the first terminal, it starts a delaying period for delaying the sending of an indication of the termination to the first terminal for allowing a terminal located on the second network to resume the voice communication before the end of the delaying period.

Abstract: An accessory is configured to receive a request. The accessory transmits information associated with the request to a portable device. An automated assistant application executed by the portable device can interpret the request and provide a report. The portable device can transmit the report to the accessory. The report may include one or more results determined by the automated assistant.

Abstract: Clients in a data network can subscribe to CTI Services and in this regard must be reachable by the CSTA gateway (CCGW). If this is not the case, because for example an error occurs in the data network, then the transmission of unnecessary messages can be prevented or stopped. The clients can be connected via a server to the CCGW, where the server monitors the status of the clients and acknowledges the messages addressed to an unreachable client with error messages. The server is preferably an XMPP server and the clients are preferably XMPP clients. In order to permit transport of the CSTA messages via XMPP, info/query stanzas according to RFC 3920 can be used, since they have the advantage over message stanzas that they can be acknowledged by a remote station.

Abstract: Techniques for compressing data in a wireless network are provided. Data may be in the form of data packets that have one or more headers and a payload. One or more compression initiation criteria are used to determine whether to compress all data or certain data. Different data may be associated with different classes of service. Compression initiation criteria for data that belongs to one class of service may be different than compression initiation criteria for data that belongs to another class of service. Compression initiation criteria for data may be different than one or more compression halting criteria that are used to determine whether to cease compressing data. One type of compression involves use of synchronized history buffers. A wireless receiver may communicate with a wireless transmitter that an error is detected and that the history buffers of the wireless transmitter should be flushed or cleared.

Abstract: A mobile-cordless phone system including a mobile-cordless phone assembly; the mobile-cordless phone assembly including an external-phone-body and an internal-circuitry system. The external-phone-body and the internal-circuitry system are structured and arranged to provide the user with a device useful for communications with the internal-circuitry useful for providing a user with a portable telephone with the capabilities to operate on a wireless cellular network and, optionally, a telephone landline. The mobile-cordless phone assembly may be weather-resistant in some embodiments, and may include a multi-color-LED-light-source useful for providing visual indications and notifications to the user. The mobile-cordless phone system includes a solar panel for charging. The mobile-cordless phone assembly may also include a charging-port for connecting a charging-device to the mobile-cordless phone system. Preferred embodiments may also include a fingerprint-reader.

Abstract: Expansion boxes have been traditionally used to provide additional expansion slots to those that are provided in the computer system. As the speed of expansion busses has increased, it has become increasingly difficult to provide an expansion box and interconnect to that expansion box that is reliable and low cost. For example, PCI Express Gen 3 provides a very high speed interconnect, allowing data rates up to 32 GBytes/sec in some configurations. Various techniques to maintain the signal integrity of this expansion bus, even over distances greater than 1 meter, are disclosed. Some of these techniques include proper selection of cable impedance, proper selection of PC board materials, and specific PC layout guidelines.

Abstract: A method performed by a conversation manager in a communications network includes establishing a multimedia conversation between a first device associated with a first user and at least one endpoint associated with at least one other user, the multimedia conversation comprising at least two different media types according to respective and different protocol types. The method further includes receiving an instruction to transfer the conversation from the first device of the first user to a second device, adding the second device to the multimedia conversation by establishing connections for the at least two different media types to the second device, and removing the first device from the multimedia conversation by removing connections for the at least two media types to the first device.

Abstract: Disclosed embodiments comprise an energy harvesting computer device in association with a communication device comprising interactive user interface operatively configured with CMOS multiple antennas on chin for boosting signal receptions and for providing faster data transmission speed. Disclosed embodiment encompasses three modes of communications—the Cell phone, wireless Internet applications, and Global communication and media information. Embodiments provide communication apparatus operable to enhance mobile communication efficiency with touch sensitive display comprising energy harvesting platform in communication with a charging circuit board configured with memories, processors, sensors, and modules. Embodiments further provide a gaming device, a wireless media device configured with touch pads comprising sensors being embedded in silicon substrate and fused in nano-fiber/microfiber material having excellent electrical characteristics.

Abstract: A system and a method for reducing the power consumption of a wireless terminal and increasing capacity of a wireless communication system, without sacrificing the functions of the terminal. A base station includes a memory for storing the characteristics of the wireless terminal, the types of voice traffic that are supported by the terminal, and a program for executing an algorithm for exchanging control messages with the terminal via a wireless network. The algorithm is modified based on the particular characteristics of the wireless terminal, and sets the frequency of message exchange to not to exceed a predetermined frequency. In addition, the algorithm limits a time that information is displayed on the wireless terminal to a predetermined duration of time.

Abstract: Methods, apparatus and computer program products for indicating availability in a telecommunications network are provided. An availability alerting service is initiated in response to a trigger associated with non-completion of an initial call from a calling party to a called party, the availability alerting service provides the calling party with availability alert information to solicit a follow-up call from the calling party when the called party has a given availability state after the initial call. The availability alerting service detects a first availability status change after initiation of the alerting service, and transmits a first availability update message to the calling party to solicit the follow-up call. A second availability status change is detected, subsequent to the first availability status change, and a second availability update message is transmitted to the calling party to inhibit the follow-up call.

Abstract: Disclosed embodiments comprise energy harvesting device comprising a communication apparatus operatively configured with CMOS multiple antennas disposed on a chip for boosting communication signals and for enabling faster data transmission speed. The communication apparatus is configured to harvest energy within its environment and is further disposed with interactive user interface. The communication apparatus is further configured to convert sound waves, vibrations, solar energy, wind force and pressure force into electrical energy communicable to a battery cell. Disclosed embodiment encompasses three modes of communications—the Cell phone, wireless Internet applications, and Global communication and media information. Embodiments provide communication apparatus operable to enhance mobile communication efficiency with touch sensitive display and provide energy harvesting platform on at least the housing for the communication apparatus and/or the communication circuit board.

Abstract: Disclosed herein are systems and methods for enforcing vendor-based restrictions on wireless service. One embodiment takes the form of a method that is carried out by at least one radio access network (RAN) entity and that includes receiving an access request from a mobile station via a base station, and responsively making a vendor identification to identify a vendor of the base station. The method further includes denying the access request based at least in part on the vendor identification.

Abstract: A system and method are provided for identifying participants for a preferential ad-hoc network using a peer-to-peer (P2P) network and then establishing the ad-hoc network with the identified participants. In general, an initiating peer node provides a request for participants for an ad-hoc network to the P2P network, wherein the request includes content information describing content stored at the initiating peer node. The content information is used by the peer nodes receiving the request to determine whether to join the ad-hock network. The peer nodes receiving the request that decide to join the ad-hoc network respond to the initiating peer node via the P2P network. All or select ones of the peer nodes responding to the request are identified as the participants for the ad-hoc network. Once the participants are identified, the initiating peer node dynamically establishes the ad-hoc network with the identified participants.

Abstract: A limited-capability wireless terminal that is particularly well adapted for use in emergency situations, recreational activities and occasional calls is disclosed. The detachable wireless terminal does not have a display or a numeric keypad. Rather, the detachable wireless terminal has several “one-touch” buttons that place a call to pre-programmed phone numbers when pressed. The detachable wireless terminal is small enough and light enough to be worn around a user's neck, received by a lanyard or a necklace. The wireless terminal detachably couples to a relatively larger docking device, which can be used to program it.

Abstract: A method and apparatus for communication in a wireless sensor network. In one embodiment, one or more routers in a network may be available for communication with one or more star nodes at a randomized time and/or frequency. A connectivity assessment, which may be performed at several different frequencies and/or times, may be performed to evaluate the quality of communications between devices in the network. Primary and secondary communication relationships may be formed between devices to provide for system redundancy. One or more proxies may be maintained where each proxy includes a status of one or more devices in the network, e.g., one or more star nodes or routers. Proxies may be used to handle information requests and/or status change requests, e.g., a proxy may be requested to change a communication relationship between devices in the network and may generate command signals to cause the corresponding devices to make the change.

Abstract: An application for a caller-identification system includes a circuit for receiving caller-identification information from a tip and ring interface and a circuit for wirelessly transmitting at least a subset of the caller-identification information to a display system. In the display system includes a circuit for receiving the caller-identification information and a circuit for displaying the caller-identification information on a display.

Abstract: Systems and methods providing integrated voice and data services utilizing wired cordless access with unlicensed/unregulated connectivity sources and wireless access with licensed/regulated connectivity sources. A single telephone directory number is assigned for use with both a mobile wireless telephone and for use with a cordless wired Internet Protocol (IP) telephone. The mobile wireless telephone operates via a conventional licensed spectrum wireless network, and the IP telephone operates over voice over Internet protocol (VoIP) over a broadband packet data network service. Incoming calls simultaneously ring the user's mobile wireless telephone and IP telephone. The user may be provided a personal voice mailbox that may be accessed from their mobile wireless telephone or from their IP telephone. The user may be provided a single services bill associated with use of both telephones.

Abstract: Systems and methodologies are described that facilitate simultaneous transmission of control information in a single sub-frame. For instance, simultaneous transmission can maintain single carrier waveforms for a control channel even when a plurality of information types is scheduled in concurrently. Channel quality indicators, scheduling requests and acknowledgement messages can be jointly coded. In addition, reference symbols in a sub-frame can be modulated to indicate values associated with a scheduling request or an acknowledgement message. Moreover, in situations where channel quality indicators, scheduling requests and or acknowledgement messages are simultaneously scheduled, one or more can be dropped. Further, a single carrier constraint can be relaxed to enable simultaneous transmission of information in the sub-frame at different frequencies.

Abstract: This private branch exchange includes a first communication portion acquiring connection target specifying information related to a connection target from a portable terminal, a second communication portion allowing telephone communication between a fixed telephone corresponding to the portable terminal and the connection target, and a control portion making a call to the connection target on the basis of the connection target specifying information and ringing the fixed telephone corresponding to the portable terminal from which the connection target specifying information has been acquired.

Abstract: A method of using an intercom on a cordless telephone during an active call. The active call is put on hold while the intercom is in use. Once the call is re-activated, the intercom is shut off. This system may be designed for a cordless telephone with one handset or a plurality of handsets.

Abstract: A cordless telephone system provides home security. Each handset associated with the cordless telephone system detects an event, such as a noise level that exceeds a threshold noise level, smoke, carbon monoxide, intrusion or moisture level. If an event is detected the system initiates a telephone call through the base unit to an alert telephone number. When the telephone call to the alert telephone number is established, a message is played to provide notification of the event.

Abstract: A network controller including processing circuitry may be configured to receive dynamic position information indicative of a three dimensional position of at least one mobile communication node, compare fixed position information indicative of fixed geographic locations of respective access points of a network to the dynamic position information to determine a relative position of the at least one mobile communication node relative to at least one of the access points based on the fixed position information and the dynamic position information, and provide network control instructions to at least one network asset based on the relative position.

Abstract: A low cost cordless telephone system including a base unit, connected to a telephone network, which can transmit and receive RF signals to and from sub-communicating devices. The sub-communicating devices include a cordless microphone for converting acoustical signals to electrical signals and providing same to a transmitter which transmits corresponding simplex RF signals on a cordless telephone frequency to a base unit attached to a telephone network; and a cordless speaker which receives simplex RF signals from a base unit and broadcasts a corresponding telephone conversation. The base unit may connect directly to a telephone network or, in an alternate embodiment, to the handset jack of an existing telephone, thereby interfacing to existing phones including those connected to digital telephone systems. The base unit may also include a speaker used to broadcast the telephone conversation.

Abstract: A method for saving number applied to a handheld electronic device is provided. The method has the following steps. An entered number is shown on a screen of the handheld electronic device. Whether the entered number is one of saved numbers is determined. If the entered number is not corresponding to one of the saved numbers, a save button is shown on the screen, and the entered number is saved after the save button is triggered.

Abstract: A system, method and computer program product are provided. Included is a cellular phone capable of communicating via a long-range cellular network protocol and a short-range protocol. Further included is a system capable of communicating via a long-range hard-line network protocol and the short-range protocol. Thus, when the cellular phone is in the proximity of the system, the cellular phone communicates with the system utilizing the short-range protocol, so that the cellular phone is used to communicate via the long-range hard-line communication network protocol.

Abstract: A cordless communication system includes a base unit and a handset. The base unit is connectable to a communication line. The handset includes a handset wireless communicating unit, a handset communicating unit, a handset switching unit, and a handset starting unit. The handset wireless communicating unit implements wireless communications with the base unit wireless communicating unit. The handset communicating unit is capable of communicating signals with the base unit. The handset switching unit switches between a handset normal mode in which power is supplied to the handset wireless communicating unit and a handset power-saving mode in which power to the handset wireless communicating unit is interrupted.