AT&T Inc.'s 4.75% Depositary Shares, Series C (NYSE: T.PR.C ), offer investors a fixed-income-like security supported by one of the most important telecommunications companies in the US. AT&T ( T ) is by itself a blue-chip telecom in theMy name is Myriam Hernandez Alvarez. I received the Electronics and Telecommunication Engineering degree from the Escuela Politecnica Nacional, Quito, Ecuador, the M.Sc. degree in computer science from Ohio University, Athens, OH, USA, a graduate degree in Business Managemen ...