Polycom IP conference phone SIP integration with Avaya Aura (communication manager), IP office and integral platforms DevConnect-certified for SIP interoperability with Avaya SIP platforms 22 kHz CD-quality Polycom HD Voice technology for life-like clarity and intelligibility 20-foot (6-meter) microphone pickup range Able to connect two units together for additional microphone pickup and speaker volume Offers integration with Polycom HDX™ high definition video conferencing systems