This listing features a Vertical Wave IP 500 phone system, which includes a VM5-8AT-M, VWU-8AT-M, and 505-0056-01 8 Port Analog Trunk Card. This system is designed for use in an office or business setting and can provide reliable telecommunications solutions. The various aspects of this system include brand, type, and model, with the Brand being Vertical and the type being Conventional System. The model is the Wave IP 500, which is a well-known and reputable model in the telecommunications industry. The system can be used for phone switching systems and PBXs, as well as for telecom systems in an office or industrial setting.