Cisco is the worldwide leader in IT and Networking products and solutions. It provides VoIP services. Cisco helps companies of all sizes to transform how people connect, communicate, and collaborate. Headquarters is in USA.
Networking Technology Solutions, Mobility & Wireless Technology Solutions, Security and Firewall Solutions, Data Center Solutions, Cloud Solutions, Video Conferencing and other Collaboration Services and Cisco Services provides to almost all industries.
Verizon Communications is Multi-National Telecommunications Service Providing Company. Verizon Provides Wireless Network Coverage to 98% of USA. Provided 2.5 Square Miles Network coverage in USA and spent 126 Billion USD as Network Investment. Headquarters is in USA.
AT&T Inc is USA Based Multi-National Telecommunications Service Provider Company. Products and Services Provided by AT&T are Wired and wireless voice and data, broadband Internet, TV and messaging services, as well as many of the leading innovative devices. Headquarters is in USA.
China Mobile Ltd is State-Owned telecommunications company with headquarters in China. As of 31 December 2019, the Group had a total of 456,239 employees, and a total of 950 million mobile customers and 187 million wireline broadband customers, with its annual revenue totaling RMB745.9 billion.
CHINA TELECOM CORPORATION is State owned telecom company with headquarters in Beijing, China. Provides telecom, mobile communications, landline connections, TV Connection Services, Internet Providing services.