A public telephone powered by a solar panel system and configured to transmit and receive calls over a cellular network is provided. A solar panel systems and wireless unit are retrofitted to conventional public telephones to convert them to wireless operation and to enable operations independent of the electrical grid and from the local telephone exchange.

Techniques and apparatus for securing a structure to a support are described. A mounting device may releasably secure a structure to a support. The mounting device may include a first plate, a second plate proximate the first plate, and at least one frangible connection securing the first plate to the second plate. The frangible connection(s) may be adapted to break in response to application of a shear force or other loading above a predetermined value. The mounting device may further include a retention member connecting the first plate to the second plate. The retention member may be adapted to maintain coupling of the first plate and the second plate after breakage of the frangible connection.

A system and method for a portable digital pod is provided. Generally, the system comprises a collapsible pod having a framework that can be expanded and collapsed using a hydraulic/pneumatic pack. The system may also comprise a computing device and display, wherein a user interface of the computing device may be manipulated by a user in a way that causes data of the system to be transmitted to said display and presented in a display user interface of said display. Security devices/methods of the system may be used to prevent unwanted access to the system and the data contained therein.

A system and method for a portable digital pod is provided. Generally, the system comprises a collapsible pod having a framework that can be expanded and collapsed using a hydraulic/pneumatic pack. The system may also comprise a computing device and display, wherein a user interface of the computing device may be manipulated by a user in a way that causes data of the system to be transmitted to said display and presented in a display user interface of said display. Security devices/methods of the system may be used to prevent unwanted access to the system and the data contained therein.

A wall assembly for a soundproof space includes a wall module having a first wall and a second wall joined together at end portions of the module to form an enclosure therebetween, and sound absorbing material within the enclosure. The enclosure is formed of the first wall and the second wall, and the first wall and/or the second wall provides an incombustible surface. A soundproof booth includes the wall assembly.

A wall assembly for a soundproof space includes a wall module having a first wall and a second wall joined together at end portions of the module to form an enclosure therebetween, and sound absorbing material within the enclosure. The enclosure is formed of the first wall and the second wall, and the first wall and/or the second wall provides an incombustible surface. A soundproof booth includes the wall assembly.