PTCRB (PCS Type Certification Review Board) is a type certification evaluation committee for personal communication services, which was established by North American mobile operators in 1997.
In order to ensure that your mobile phone or communication device can work on th···
T-Mobile is a multinational mobile phone operator. It is a subsidiary of Deutsche Telekom and belongs to the Freemove alliance. T-Mobile operates GSM networks in Western Europe and the United States and participates in network operations in Eastern Europe and Southeast Asia through financial means.
2011-03-21 AT&T, the second largest mobile operator in the United States, announ···
The United States has become China's second largest trading partner for several years in a row, and the Sino-US trade volume is on the rise year by year, so exports to the United States cannot be underestimated.
According to the provisions of the relevant part of the United States Federal Co···
Since 2005, Verizon Wireless has successively launched new data services based on broadband wireless networks, such as multimedia data service V CAST for individual users and video sharing, a typical application of mobile web2.0.
As the largest CDMA operator in the United States, Verizon Wireless has endured ···
Opening the Door to Greater Possibility
Opening the Door to Greater PossibilityOur world is rapidly being transformed by···