The Grandstream GHP Series are IP phones designed for use in hotels, with models that feature integrated dual-band Wi-Fi for wireless deployments. These phones have features such as HD speaker, 2 SIP accounts/lines, 6 programmable keys, 3-way voice conferencing, and support for the full-band OPUS voice codec. They are also supported by Grandstream's Device Management System, which allows for centralized configuration, provisioning, and monitoring of the phones. The phones have a sleek and compact design, making them suitable for use in various settings such as hotels, apartments, dormitories, hospitals, and retail environments.