For Grandstream GXW4504, 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 Grandstream GXW4504 has been well received by many customers and enjoyed a good reputation in many countries. Importgm International limited Grandstream GXW4504 have characteristic design & practical performance & competitive price, for more information on the Grandstream GXW4504, please feel free to contact us.