Description
The GRP2650 is the 14-line phone of the GRP series, Grandstream's carrier-grade IP phones. Its large backlit 5-inch color LCD (1280 x 720) shows calls, menus and the 56 multi-purpose keys used to monitor extensions or dial speed dials, with no paper labels. It handles up to 16 SIP accounts on 14 multi-purpose line keys. The full-duplex HD speakerphone, with the wideband codecs G.722 and Opus and noise shield technology, keeps conversations crisp; audio conferencing brings together up to 5 participants. Two switched Gigabit ports with PoE, dual-band 2.4 and 5 GHz Wi-Fi (Wi-Fi 6 from hardware version 5.0), Bluetooth and a USB port cover every way of connecting; the RJ9 port offers EHS remote hook for Plantronics headsets and the USB port accepts a USB headset. 12 V / 1 A power adapter supplied, swappable faceplate, optional wall mounting, centralized management through GDMS and enterprise-grade security.
Specifications
| Reference | GRP2650 |
|---|---|
| Brand | Grandstream |
| Manufacturer order code | GRP2650 |
| Type | SIP desk phone |
| EAN code | 6947273703969 |
| SIP accounts | 16 (14 line keys) |
| Multi-purpose keys | 56 |
| Display | 5" color LCD, 1280 x 720 pixels, backlit |
| Audio | HD voice, G.722, Opus, full-duplex speakerphone, noise reduction |
| Conferencing | 5-way |
| Network | 2 x switched RJ45 10/100/1000 |
| Wi-Fi | Dual-band 2.4 and 5 GHz, Wi-Fi 6 802.11ax from hardware version 5.0 |
| Bluetooth / USB | Built-in Bluetooth, 1 USB port |
| Headset | RJ9 with EHS for Plantronics, USB headset |
| Power | PoE 802.3af, 12 V / 1 A power adapter included |
| Power consumption | 6.2 W |
| Security | Secure boot, dual firmware, encrypted storage |
| Mounting | Desk or wall (optional GRP_WM_L kit) |
| Dimensions | 263 x 210 x 82 mm |
| Packed weight | 1.70 kg |
Use and tips
The GRP2650 equips desks that centralize a company's traffic: switchboard, management with an assistant, practice or clinic reception, customer service. Its 5-inch display keeps the 56 multi-purpose keys readable at a glance, and 5-way conferencing replaces an audio bridge for small meetings. On a PoE switch, the supplied power adapter stays in the drawer; the built-in Wi-Fi helps out desks without a network socket and Bluetooth or the USB port take the headset. To fix the phone to a wall, add the GRP_WM_L kit. For labeled physical keys rather than on-screen ones, see the GRP2636.
Frequently asked questions
Which PBX or provider does this phone work with?
With any SIP-compatible IP PBX or VoIP service, including Grandstream UCM PBXs, 3CX, Asterisk and hosted Centrex offers. Tell us about your setup through our contact page and we confirm compatibility before you order.
Does the GRP2650 handle conference calls?
Yes, it brings together up to 5 participants in an audio conference right from the phone, with the full-duplex HD speakerphone and noise shield.
What is the warranty?
Two-year statutory conformity warranty, plus the Grandstream manufacturer warranty under its own terms.
Where are the firmware, manuals and guides?
Grandstream provides the firmware, user manual and administrator guide of this phone free of charge: our Grandstream support page takes you straight to the documents for this model.







