GHP620W (White)  and GHP621W (Black) Hotel IP Phones Wi-Fi 2.4 &5 GHz 
: Pre-Order : Minimum  8 units,  lead time 45 days
The GHP Series  is easy-to-use IP phones for any hotel room that can be programmed and customized based on the needs of hotels and their guests,
equipped with integrated dual-band Wi-Fi 2.4 &5 GHz to support wireless deployments. This Series features an HD speaker, 2 SIP accounts/lines, 6 programmable keys, 10-speed dial keys, 3-way voice conferencing, supports the full-band OPUS voice codec, and provides an advanced jitter resilience algorithm that tolerates up to 30% packet loss without impacting voice quality.
The GHP Series is supported by Grandstream’s Device Management System (GDMS), which provides a centralized interface to configure, provision, manage and monitor deployments of Grandstream endpoints. GHP series IP phones can be installed on desktop or wall-mounted and can be powered by power adapter (Option) 
 
2 SIP Accounts, 2 Lines
GDMS online device management and provisioning
3-way audio conferencing for easy conference calls
Integrated dual-band 2.4GHz & 5GHz 802.11 a/b/g/n/ac 
Swappable faceplate to allow for easy customization
Hearing Aid Compatibility (HAC)
Enterprise-level protection including secure boot
Power adapter is an option.
Warranty 1 Year/Carry-In