Shielding effect of cell phone jammers is dependent on room size

Appraisal of the Orange held in London on October 3, 2005 World Communications Awards in 2005 was awarded the title of "best international mobile operators. In 1996, the company officially listed on the London Stock Exchange, and April 2 in the same year, NASDAQ Stock Exchange, the largest shareholder is Hutchison, Whampoa, accounting for 48% of the shares; British Airways accounted for 22% of the shares . Total assets have reached $ 8.4 billion. In July 1997, the company's users has reached 1 million, the extraordinary milestone in the history of the company. In 1998, the company's stock is the best one French stock market performance.  cell phone jammer  is installed in the hallway of every floor.
The company has begun to aggressively expand our international business, and has successfully carried out in Austria, Belgium, Switzerland, the international implementation of the strategy. The end of 1999, the company has been in Hong Kong, Australia, Israel and India, trademark registration. The company's continuing concern for the customer to provide the best service. In 2001, the company's UK division of four consecutive named the UK mobile customer satisfaction research list. Spanish telecommunications group Telecom Group (Telefonica), the predecessor of Spain - Spanish National Telephone Company was established April 19, 1924 Telefónica (Telefónica, of Spain) is an international telecommunications company, to provide comprehensive services to customers at home and abroad. The shielding signal will be transmitted through the door or window so more  cell phone jammer  is needed.
Including fixed line, mobile telephony, Internet, data and cable TV. Spanish telephone company is a major telecommunications company in the Spanish-and Portuguese-speaking countries affect the potential market of about 550 million customers, of which 60 million has become the company's customers. The first nine months of 2000, the Spanish telephone company's profit reached 20.7546 billion pesetas, is Spain's largest multinational corporations, but also one of the largest telecommunications companies in the world. Spanish telephone company serving customers in over 40 countries, opened branch coverage to Latin America, Europe, America, Africa and Asia. It is building wall’s influence on attenuation signal of  cell phone jammer .
The company's development history of the Spanish telephone company is a major telecommunications company in the Spanish-and Portuguese-speaking countries affect the potential market of about 550 million customers, of which 60 million has become the company's customers. The first nine months of 2000, the Spanish telephone company's profit reached 20.7546 billion pesetas, is Spain's largest multinational corporations, but also one of the largest telecommunications companies in the world. Spanish telephone company serving customers in over 40 countries, opened branch coverage to Latin America, Europe, America, Africa and Asia. About one million direct shareholders of the Spanish telephone company. The effective covering range of  cell phone jammer  is 3 or 4 rooms.
In addition to Spain's four stock (Madrid, Barcelona, Bilbao and Valencia), Spain, the telephone company's stock is still in London, Paris, Frankfurt, Tokyo, New York, Sao Paulo, Lima's stock market and London the SEAQ International stock trading system to trade. In order to remain invincible in the fierce competition in international telecommunications market, the telephone company in Spain organized a series of international business lines, operated by an independent company. Such a flexible management style is conducive to take measures according to their characteristics, can also enhance the financial strength through joint ventures. Not long ago, the Spanish telephone company into the Internet field, by the same company responsible for production and sales operations. Shielding effect of  cell phone jammers is dependent on room size.