Description

The Grandstream GRP2670 is a high-end, professional-grade desktop VoIP phone, part of the “GRP Series of Carrier-Grade IP Phones” from Grandstream. 
It is designed for heavy-use environments (such as executives, reception desks, high‐volume call stations) and aims to combine advanced connectivity (WiFi, Bluetooth), a large touch‐screen interface, and enterprise provisioning/management features (including zero‐touch provisioning via the company’s cloud management platform). 
In short: if you need a “premium” desktop VoIP phone with rich features, strong connectivity and flexible deployment options (desk, wall mount, many lines/keys), the GRP2670 is a strong candidate.

Key Features

Here are the standout features of the GRP2670:

• 12 lines and support for up to 16 SIP accounts (various sources cite 12 lines/16 accounts). 

• Large 7-inch capacitive touch screen (1024×600 resolution) for intuitive operation. 

• 48 or up to 64 virtual multi‐purpose keys (VPKs) for speed dials/blf/monitoring. 

• Integrated dual‐band WiFi (2.4 GHz + 5 GHz) and Bluetooth support – enabling wireless connectivity & wireless headsets. 

• Dual switched Gigabit Ethernet ports (10/100/1000 Mbps) with integrated PoE support. 

• HD audio with full-duplex speakerphone plus noise shield technology to minimise background noise. 

• Enterprise-grade security features: secure boot, dual firmware images (for upgrade fallback), encrypted data storage. 

• Compatibility with cloud/zero-touch provisioning via Grandstream’s Device Management System (GDMS) — simplifying large deployments. 

• Support for headsets via USB, RJ9, Bluetooth, etc. And expandable with optional extension modules (e.g., GBX20) for additional speed-dials/BLF keys. 

Specifications

Here is a more detailed specification list for the GRP2670:

Lines & Accounts

• Lines: Up to 12 lines supported. 

• SIP accounts: Up to 16 SIP accounts in some specs. 

Display & Interface

• Screen: 7.0″ (1024×600) capacitive touch screen. 

• Feature & function keys: navigation/menu keys, dedicated keys (Message, Transfer, Headset, Hold, Mute, Send/Redial, Speakerphone, Volume) etc. 

Network & Ports

• Ethernet: Dual autosensing 10/100/1000 Mbps (Gigabit) ports with integrated PoE. 

• WiFi: Integrated dual-band (2.4GHz & 5GHz) WiFi (802.11a/b/g/n/ac/ax) for hardware version 5.0 and above. 

• Bluetooth: Integrated Bluetooth support. 

• Headset/USB support: RJ9 headset jack allowing EHS support (Plantronics) + USB port to support Grandstream USB headsets. 

Voice / Audio Features

• HD audio: Handset and speakerphone with wideband codec support. 

• 5-way audio conferencing support. 

• Noise shield technology to reduce background noise. 

Security & Provisioning

• Secure Boot, dual firmware images, encrypted configuration/data storage. 

• Provisioning via HTTP/HTTPS/FTP/TFTP, TR-069, support for mass deployment via GDMS. 

Physical / Environmental

• Power: Integrated PoE (802.3af) and standard power adapter (depending region).

• Operating temperature: 0 °C to 40 °C (typical). Storage: -10 °C to 60 °C. Humidity: 10% to 90% non-condensing. Dimensions & weight: Example spec lists ~267 mm × 220 mm × 82 mm, unit weight ~1.1 kg.