Ejointech ACOM516-256 VoIP Gateway is a high-performance, multi-functional device that supports up to 256 concurrent calls. It is designed for a variety of applications, including VoIP termination, call routing, PBX integration, mobile VoIP, conference calling, voicemail, IVR, and fax over IP. It is a powerful and versatile device that need a high-performance and reliable VoIP solution for their call centers.