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).
KINGCALLS offers an alternative calling solution to save you up to 90% on your international calling bills: * With no hidden fees; * No connection charge; * No Monthly recurring charge; * No post completion surcharges