RTS DBP 4-Channel IP Digital Wired Beltpack Transceiver w/4M HeadsetDBP is a four channel four button wired beltpack that runs on PoE+ (Power over Ethernet 802. 3af and 802. 3at) and connects using OMNEO IP technology. Its unique hybrid design supports both digital partyline and matrix keypanel modes: for use as a digital partyline device, DBP connects to an OMS; for use as a portable keypanel, including functionality like point to point communication, DBP can be connected to any RTS digital IP matrix product using