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 PoE (GHP620/GHP621), power adapter (GHP620W/GHP621W), and USB Type-C charger. Thanks to a sleek and compact design, the GHP620/GHP620W and GHP621/GHP621W are the ideal fit for not only hotels but also apartments, dormitories, hospitals, retail, and much more.

  • 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 (GHP620W & GHP621W only)
  • Speed dial label and swappable faceplate to allow for easy customization
  • Hearing Aid Compatibility (HAC)
  • Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage
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