2N BlueTower is the optimal solution for medium-sized companies with a high frequency of calls to mobile networks. This is a GSM / UMTS gateway, which can significantly reduce the cost of telephone calls. Its efficient router is able to find the cheapest connection route and will always use the most favorable direction (SIM-card).
A leader of innovation and state of the art solutions for Gateways and SIM Server solutions, locally and internationally to all existing networks GSM/CDMA/UMTS/VoIP