An account registration method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster system includes: establishing communication with a DECT host through a DECT network cluster constructed in advance; receiving first account information allocated by the DECT host; initiating registration to a server according to the first account information, and obtaining a first registration result; sending the first registration result to the DECT host; if the first registration result is that the registration is successful, entering a first mode; if the first registration result is that the registration is not responded to, obtaining a second registration result fed back by the DECT host; if the second registration result is that the registration is successful, entering a second mode, where in the second mode, the DECT device sends SIP signaling to the DECT host so that the DECT host forwards the SIP signaling.

A telecommunications system includes a base, a plurality of handsets, and a status database for storing status information. Each handset is localized to the base. The status information may be that of a first handset of the plurality of handsets. The base broadcasts to the plurality of handsets a status broadcast that includes the status information.

An account registration method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster system includes: establishing communication with a DECT host through a DECT network cluster constructed in advance; receiving first account information allocated by the DECT host; initiating registration to a server according to the first account information, and obtaining a first registration result; sending the first registration result to the DECT host; if the first registration result is that the registration is successful, entering a first mode; if the first registration result is that the registration is not responded to, obtaining a second registration result fed back by the DECT host; if the second registration result is that the registration is successful, entering a second mode, where in the second mode, the DECT device sends SIP signaling to the DECT host so that the DECT host forwards the SIP signaling.

In accordance with some embodiments, an apparatus for privacy protection is provided. The apparatus includes a housing arranged to hold a personal communication device, a first subscriber identity module (SIM) interface, a second SIM interface, a personal communication device interface, and a controller. A portion of the personal communication device interface is shaped to mate with a SIM slot of the personal communication device, and the personal communication device interface includes a SIM emulator operable to couple the second SIM interface to the SIM slot of the personal communication device. Through operation of the personal communication device interface, the controller is operable to selectively couple one of the first SIM interface and the second SIM interface to the SIM slot of the personal communication device.

In accordance with some embodiments, an apparatus for privacy protection is provided. The apparatus includes a housing arranged to hold a personal communication device, a first subscriber identity module (SIM) interface, a second SIM interface, a personal communication device interface, and a controller. A portion of the personal communication device interface is shaped to mate with a SIM slot of the personal communication device, and the personal communication device interface includes a SIM emulator operable to couple the second SIM interface to the SIM slot of the personal communication device. Through operation of the personal communication device interface, the controller is operable to selectively couple one of the first SIM interface and the second SIM interface to the SIM slot of the personal communication device.

Embodiments of an apparatus and methods for selecting a communication line from two or more lines on a communication device are described herein. The communication device comprises a display module, an input module, a line selection module, and a communication module for making a call over a network to a target recipient. In one broad aspect, a determination of which of the communication lines is a communication line associated with the one of two or more message addresses at which a message is received is made in the selection of a communication line accessible at the communication device on which an outgoing call may be placed.