Grandstream GRP2616 is a high-end IP phone that is simple to deploy as part of an enterprise phone fleet. GRP2616 features a large color display with six line keys and five soft keys. It also comes with an integrated sidecar with a color display and eight multipurpose keys to use for speed dial, call extension, and other applications. In total, the phone supports 48 multipurpose keys, the equivalent of having an integrated expansion module. GRP2616 provides professional audio quality with HD audio from the handset and speakerphone. Use a wireless headset via Bluetooth or a wired headset using the RJ9 port. GRP2616 also comes with a built-in 802.11ac Wi-Fi radio for wireless convenience with the bandwidth for enterprise-class telephony.

Grandstream GRP2616 is a network-connected phone that supports the open SIP protocol for broad interoperability with VoIP platforms and services. Part of the Grandstream GRP2600 Series of Carrier-Grade IP Phones, GRP2616 uses unified firmware with the other models in the series, making configuration and management much simpler. Security is also improved with encrypted data storage, dual firmware images, and more. The phone has dual Gigabit Ethernet ports for futureproof network connectivity. Power the phone via PoE when using Ethernet or using the included power adapter when using Wi-Fi.