AT&T Inc. is a premier communications holding company in the United States and worldwide. Operating globally under the AT&T brand, AT&T is recognized as the leading worldwide provider of IP-based communications services to businesses and the leading U.S.
AT&T Inc. is a premier communications holding company in the United States and worldwide. Operating globally under the AT&T brand, AT&T is recognized as the leading worldwide provider of IP-based communications services to businesses and the leading U.S. provider of wireless, high speed Internet access, local and long distance voice, and directory publishing and advertising services. As part of its
Centnet Technologies Co., Ltd is an independent and leading provider of IP telephony solutions for corporate customers in China. Centnet has always completely dedicated its focus on the development, production and distribution of IP telephony solutions. I
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