SNOM PA1Announcement System, Plus VoIP Paging Amplifier, HD Audio, PoE, Headset ConnectableSnom PA1+ SIP based announcement system SNOM PA1 PLUS With the Snom PA1+, a SIP PBX can be expanded to become a broadcasting system for HD audio announcements from any Snom SIP phone or to play background music in rooms, corridors and office floors. The integrated 6. 5 watt high performance amplifier can already fill large rooms with sound using existing 600 ohm speakers, but larger PA systems can also be added via the existing connections. Another