Centrales Telefonicas
Operadora UNEFON
Aguascalientes, Aguscalientes (2000) Culiacan, Sinaloa (2004) Chihuahua, Chihuahua (2006)
Many projects have been completed for the company, including the construction of three Central Telephone Switches in a turn-key manner (excluding telecommunications equipment) in the cities of Culiacan, Aguascalientes, and Chihuahua.
