Cisco vs Telefonica

Cisco Systems, Inc. is an American multinational technology company headquartered in San Jose, California, that designs, manufactures, and sells networking equipment. Cisco is the worldwide leader in networking for the Internet, and it supports, manages and operates business systems for various and major third parties. Cisco Systems was founded in December 1984 by Leonard Bosack, who was in charge of the Stanford University computer science (CS) department's computers, and Sandy Lerner, who managed the Graduate School of Business' computers.

Telefnica, S.A. is a Spanish broadband and telecommunications provider with operations in Europe, Asia, North America and South America. Operating globally, it is one of the largest telephone operators and mobile network providers in the world. The company started as a public telecommunications company. Its head office is in the Distrito Telefnica in Madrid. As well as the Telefnica brand, it also trades as O2, Vivo and Movistar.