For 48-port VOIP gateway, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 48-port VOIP gateway has been well received by many customers and enjoyed a good reputation in many countries. Importgm International limited 48-port VOIP gateway have characteristic design & practical performance & competitive price, for more information on the 48-port VOIP gateway, please feel free to contact us.