Hotel Phones The GHP Series features easy-to-use IP Phones for every hotel room that can be programmed and customized based on the needs of the hotel and their guests. The GHP series is powered by Grandstream’s Device Management System (GDMS), which provides a centralized interface to configure, provision, manage and monitor Grandstream endpoint deployments. The GHP series IP Phones can be desktop-mounted or wall-mounted and contain Wi-Fi adjacent models equipped with integrated dual-band Wi-Fi to support wireless deployments. Thanks to the sleek and compact design, the series is suitable not only for hotels but also apartments, dormitories, hospitals, retail, and more.