A contact center system and related methods for handling teleservices in voice and data through a plurality of mobile devices such as smartphones is provided. The contact center system is characterized by a very wide functional platform for contact center fully integrated in a single system, with maximum elasticity to increase or decrease capacities based on the characteristics of the cloud, and capable to deliver via an agent mobile platform all the functionality of a fixed-up workstation into a smartphone. The contact center system according to the embodiments is capable to route a call from a customer's device, using a local telecommunications network, to the contact center system, which transforms it into a digital call; the call is assigned to an agent using a mobile platform.