A portable voice communication digital switching device is provided for use with voice communication systems. The switching device is contained in a portable switching device enclosure and has a central control unit that includes communication line interface units and an operator position station with a touch display screen for operator switching control of communication components connected to the switching device.

A portable voice communication digital switching device is provided for use with voice communication systems. The switching device is contained in a portable switching device enclosure and has a central control unit that includes communication line interface units and an operator position station with a touch display screen for operator switching control of communication components connected to the switching device.

A telecommunications panel includes a panel frame and a ground wire secured to the panel frame. The ground wire extends longitudinally along the panel frame. The ground wire may be arranged such that modular jacks presses against the ground wire when the modular jacks are received in the panel frame. The ground wire can be made of a tin plated conductive material.

Provided is a signal processing device including an input unit inputting a sound collection signal of a sound of a user collected by user-surrounding microphones with inward directivity in a reproduction environment, an acoustic-signal processing unit obtaining a reproduction signal of a sound field in a measurement environment by performing a process on the sound collection signal based on a transfer function measured based on a result of sequential emission of predetermined sounds from speakers at positions set on a first closed surface with outward directivity in the measurement environment and collection of the sounds with microphones at positions on a second closed surface with outward directivity in the measurement environment and indicates how the sounds are transferred to the positions on the second closed surface, and a sound-emission control unit causing user-surrounding speakers to emit sound based on the reproduction signal with inward directivity in the reproduction environment.

A communication device is disclosed. Specifically, the communication device may be a telephone service powered hotspot that plugs into a telephone jack of a Public Switched Telephone Network. The telephone plug of the hotspot provides power and a telephone connection for the hotspot. The hotspot may include a modem that can use the telephone connection to connect the hotspot to an Internet Service Provider. By using such a connection, the modem can provide dial-up internet connectivity for the hotspot. The hotspot can use the power supply to provide a wired or wireless power source for nearby devices after a disaster disables usual power sources. The hotspot can use the internet access from the modem to provide wired or wireless internet access for the nearby devices. However, because dial-up connectivity can have a very limited bandwidth, the hotspot may throttle applications when the bandwidth requires such throttling.

A communication device is disclosed. Specifically, the communication device may be a telephone service powered hotspot that plugs into a telephone jack of a Public Switched Telephone Network. The telephone plug of the hotspot provides power and a telephone connection for the hotspot. The hotspot may include a modem that can use the telephone connection to connect the hotspot to an Internet Service Provider. By using such a connection, the modem can provide dial-up internet connectivity for the hotspot. The hotspot can use the power supply to provide a wired or wireless power source for nearby devices after a disaster disables usual power sources. The hotspot can use the internet access from the modem to provide wired or wireless internet access for the nearby devices. However, because dial-up connectivity can have a very limited bandwidth, the hotspot may throttle applications when the bandwidth requires such throttling.