The Yeastar NeoGate TA400 is an Analog VoIP Gateway that is an awesome product that attaches legacy phones, fax machines and PBX systems with IP telephone networks and IP PBX systems. Featuring lots of functionalities and easy arrangement. NeoGate TA is perfect for small to medium business that wants to integrate a traditional phone system into IP-based system. NeoGate TA supports them to reserve previous assets on legacy telephone system and decrease communication costs considerably with the true benefits of VoIP.