The Polycom SoundStation IP 7000 conference phone delivers outstanding performance and robust capabilities for organizations operating on SIP-based VoIP platforms. Ideal for boardrooms, conference rooms, auditoriums and executive offices, the SoundStation IP 7000 is the most advanced and expandable conference phone ever develop. Connect two units or add optional expansion microphones to increase room coverage and voice pickup. Connect the SoundStation IP 7000 to a Polycom HDX video conferencing system to create a complete, integrated voice and videoconferencing solution.