• 2 SIP accounts/lines
• 6 programmable keys
• 10-speed dial keys
• 3-way voice conferencing
• Supports the full-band OPUS voice codec
• Wifi Support

The Grandstream GHP621 is a compact IP phone designed for hotel rooms and similar environments, featuring 2 SIP lines, PoE support, speed dial keys, a customizable faceplate, and easy remote management via GDMS.