Features Supports 2 lines and 4 SIP accounts Supported by GDMS, which provides a central interface to configure, provision, manage and monitor Grandstream devices EHS (Electronic Hook Switch) support for Plantronics, Jabra and Sennheiser headsets Full duplex speakerphone with HD audio to maximize audio quality and clarity Equipped with noise shield technology to minimize background noise The GRP2602P has built-in PoE to power the device and allow it to network connect Supports 5-way audio conferencing for easy Conference calls Enterprise-grade protection with secure boot, dual firmware images, and encrypted data storage Interchangeable faceplate for easy logo customization GRP2602W offers built-in dual-band Wi-Fi support