Hotel IP Phone, 2 SIP lines with 2 accounts, Opus codec, IPv4/IPv6, white color, with GDMS cloud management

The GHP series of hotel phones includes the GHP620/GHP620W and GHP621/GHP621W IP phones, designed for ease of use in any hotel room and can be programmed and customized according to hotel and guest needs. The GHP620W and GHP621W models come equipped with built-in dual-band Wi-Fi 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, support for full-band OPUS voice codec, and advanced jitter resilience algorithm that tolerates up to 30% packet loss without affecting voice quality. The GHP series is compatible with Grandstream’s Device Management System (GDMS), which provides a centralized interface to configure, provision, manage, and monitor Grandstream endpoint deployments. GHP IP phones can be installed on a desk or mounted on a wall and can be powered by PoE (GHP620/GHP621), power adapter (GHP620W/GHP621W), or USB Type-C charger. Thanks to their elegant and compact design, the GHP620/GHP620W and GHP621/GHP621W models are ideal not only for hotels but also for apartments, dormitories, hospitals, retail stores, and more.

Hotel IP Phone

• The GHP series of hotel phones includes the GHP620/GHP620W and GHP621/GHP621W IP phones, designed to be user-friendly for any hotel room and customizable to suit the needs of hotels and their guests.
• 2 SIP accounts, 2 lines
• Online device management and provisioning via GDMS
• 3-way audio conferencing for easy conference calls
• Includes a 100 Mbps network port with PoE (GHP620 and GHP621 only)
• Swappable speed dial label and front plate for easy customization
• Hearing Aid Compatibility (HAC)
• Enterprise-grade security including secure boot, dual firmware images, and encrypted data storage

Key Features:

• 2 SIP lines
• PoE power support
• Compatible with GDMS
• Support for G.729A/B, G.711µ/a-law, G.726, G.722 (wideband), G.723, iLBC, OPUS, in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO), VAD, AEC, CNG, PLC, AGC
• One integrated 10/100 Mbps Ethernet port with auto-negotiation and PoE Class 2 (GHP620/GHP621)
• 26 keys including:
• 6 programmable keys
• 12 standard dial keys (0–9: can be configured as speed dial keys via web UI, *, #)
• 5 function keys (Flash, Redial, Hands-free, Voicemail, Hold)
• 3 volume control keys (up/down/mute) with red LED indicator
• Wall mountable
• USB-C port for charging external devices (500mA MAX)

Package Contents:

• GHP620 Phone
• Corded handset
• Base stand
• Front plate
• Quick installation guide

Physical and Electrical Characteristics:

• Universal Power Supply: Input 100–240 VAC 50–60 Hz; Output: +12 VDC, 500 mA
• Dimensions: 210 mm (L) × 132 mm (W) × 89.8 mm (H) (with handset and base stand)
• Unit weight: 560 g (GHP620/GHP621)
• Operating temperature: 0°C to 40°C
• Storage temperature: -10°C to 60°C
• Humidity: 10% to 90% non-condensing