Grandstream GXP1620 VoIP phone

Small-business IP phone for two lines

The Grandstream GXP1620 is a desk VoIP phone built for small-business users who need up to two SIP accounts. It delivers full HD audio on both the handset and the speaker for clear conversations. Three XML-programmable soft keys let each person tailor the phone to their workflow. State-of-the-art SRTP and TLS encryption protects every call.

Suits solo desks and small teams.

This model fits offices that need a simple, reliable handset for a handful of users. Buyers who require Power over Ethernet should note the GXP1620 lacks PoE and must use the external power supply. Organisations needing more than two concurrent lines or a colour display will need a different handset. The phone also omits a built-in headset port, so wireless headset users must add an EHS adapter.

Two-line capacity with HD audio headroom

The handset comfortably handles two simultaneous SIP registrations and three-way conferencing for small-group calls. HD voice remains clear at normal office volumes on both the handset and speakerphone. Zero-configuration provisioning with Grandstream UCM PBXs, encrypted XML files and TR-069 keeps mass deployment straightforward. Environments that demand more than two lines or integrated PoE will exceed the phone’s built-in limits.