DCK-37S is a digital unified communications dedicated key telephone system used in small to mid-size offices and businesses. This telephone system supports voice over IP (VoIP) technology, allowing users to make phone calls over the internet, as well as traditional analog lines. It also has the capacity to connect up to 37 users and supports multiple VoIP providers. With its intelligent design, DCK-37S is a versatile and practical choice for growing businesses. It also has advanced features such as an auto attendant, call forwarding, interactive voice response (IVR), and conferencing capabilities. This system also supports advanced security features such as caller ID, call routing, and encryption. All in all, DCK-37S is an excellent choice for businesses looking for an advanced yet cost-effective communication solution.