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Martha Liliana has 22 years of experience in the Telecommunications Sector. She graduated as Electronic Engineer in Universidad Javeriana, Bogotá, and made a MSc in Telecommunication Systems and Networks with Major in Mobile communications in Universidad Politecnica de Madrid, España. Currently, she is the CTO of Avantel S.A.S She Responsible for the planning, design, operation and maintenance of mobile telecommunications networks ( iDEN network and 4G LTE network) in Avantel including the Core, radio access network, and backhaul, to ensure the customer experience under the standards of quality defined by the organization. She leaded the implementation and start-up of the network infrastructure to offer 4G LTE and VoLTE (Voice over LTE) services, being the first operator in Latin America to implement this technology. In 2016, Avantel´s LTE network was for second year the fastest LTE network in Colombia. In 2018 Avantel started a massive penetration of the VoLTE service in its customers and the road to transform the LTE network in a 4.5G network (LTE Pro).