Supports 2 lines, and 4 SIP accounts Supported by GDMS Electronic Hook Switch (EHS) support for headsets Full-duplex speakerphone with HD audio to maximize audio quality and clarity Equipped with noise shield technology to minimize background noise The GRP2602P/GRP2602G includes built-in PoE to power the device and give it a network connection Supports 5-way audio conferencing for easy conference calls GRP2602W includes built-in dual-band Wi-Fi support