A router including a processor, a wide area network (WAN) signal transceiver, and a local area network (LAN) is provided. The WAN signal transceiver is controlled by the processor. The WAN signal transceiver is configured to transceive voice signals and data signals with a base station via a telecommunication network. The LAN signal transceiver is controlled by the processor. The LAN signal transceiver is configured to transceive the voice signals and the data signals with a wireless access point via a local area network.