The SoundStation2 Analog Conference Phone from Polycom features intelligent microphones, speakers, and audio technology to ensure that you can hear and be heard. It supports up to ten participants at once and full duplex technology for a natural and simultaneous two-way conversation without clipping or drops. Dynamic noise reduction technology removes background noise while 360 degree microphone coverage ensures that you can be heard without any distracting ambient sounds. It also resists interference from mobile phones for enhanced clarity. Furthermore, the SoundStation 2 has a 2.5mm applications port that lets you connect it to a mobile phone or PC for voice over IP (VoIP) calling. It connects to any standard telephone line, making it very easy to set up and includes features such as redial, mute, transfer, hold, and more.