In the very near future, all as TIMES (Voice over Long Term Evolution) has been developed to change and offers an all-IP network. Currently, most providers are in a (IP Multimedia Subsystem) IMS core moves that will make obsolete the current voice-centric networks. In most cases, these institutions are the voice and data over a network via a second. This is for the management of networks, which makes the user's device and hardware vendors. The licenses for the frequencies for LTE (700MHz) are assigned to come to trial, in which the licensee is obliged to initiate a launch within the next year or the license will be changed.