When And Where The Earlist Roadside Emergency Telephones Were Developed?

Although it is difficult to determine when and where the earliest highway emergency phones were developed, undoubtedly one of the earliest examples were the freeway phones developed in Western Australia in 1966. This system was developed by Alan Harman, an employee of a Western Australian security firm, Central Station Security Company, Electronic Signals Pty Ltd, who came up with the idea after reading of a pile-up on the Kwinana Freeway. The newspaper article mentioned that assistance had been difficult to provide to those involved in the pile-up. The system Harman envisaged was a series of telephone units in a box on a short post, spaced every 160 metres (0.1 mi) on Perth’s freeways. Picking up the handset would trigger an alarm in the Main Roads control centre and police, fire or ambulance could then be determined by the caller. Harman developed the system with the approval of the Main Roads Commissioner and Chief Engineer, by adapting the existing design of communication facilities used at the security firm in which he worked.

Emergency telephones are commonly found alongside major roads throughout the world. In the United Kingdom, orange "SOS" call boxes are spaced every 1.6 kilometres (1 mi) on all motorways as well as some major "A" roads, with roadside markers indicating the nearer phone. Emergency telephones were installed every 0.25 miles (400 m) on all limited-access highways ("Freeways") throughout Southern California in the United States as far back as the 1970s. In Melbourne, Australia, emergency telephones were introduced on metropolitan freeways in 1976, originally on the Tullamarine, South Eastern and Lower Yarra (West Gate) Freeways. On Italian "Autostrade" ("Motorways"), "SOS" emergency phones, generally coloured in yellow, are found spaced every 2 kilometres (1.2 mi).

These telephones are almost always marked by a placard or sign indicating a unique serial number or identifier which allows the authorities to know exactly where the caller is - even if the caller does not know - by having the caller read the short identifier from the placard over the telephone. Some phones are equipped with the equivalent of caller id and the agent receiving the call can identify the location even if the caller cannot.

When Did Xianglong First Make Emergency Phone Handsets?

Yuyao Xianglong Communication Industry Co., Ltd. was established in 2005 and has grown rapidly  in the field of industrial telephone communications with sophisticated technology and professional skills. Xianglong has been manufacturing emergency telephone handsets for 15 years. Relying on the trust of old customers and the support of new customers, the market scope we serve is gradually expanding, including chemical plants, highways, subway stations, high-speed rail stations, airports, tunnels, railway stations, Parking lots and other emergency places.

For more details. welcome to eamil us or inquiry at www.yyxlong.com. We are always ready to win projects for you!