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).
Iristel Inc.
Iristel is a leading carrier of international long distance telephone calls and provider of retail prepaid calling cards sold online. We provide high quality service for billions of minutes of international calls through our global VoIP network.
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