Documented specifications
Grandstream · Current product, documentation and firmware records available at September 30, 2026 review; hardware-revision firmware eligibility is documented, but remaining support period, certification, inventory and local availability are not established.
| Specification | Documented value |
|---|---|
| SIP accounts | Up to 12 in current product listing Source ↗ |
| Line keys | 4 plus 8 extension keys Source ↗ |
| Ethernet | Two Gigabit Source ↗ |
| PoE | Integrated Source ↗ |
| Wi-Fi | Dual-band 802.11 a/b/g/n/ac Source ↗ |
| Bluetooth | Integrated Source ↗ |
| Controls and accessories | Dual LCD screens Source ↗ |
| Provisioning | Grandstream GDMS Source ↗ |
Unlisted fields remain unverified. Platform compatibility and remaining support life require confirmation for the exact ordered model.
Keep physical keys, mapped functions and accounts separate
Grandstream's current product page describes four line keys, up to 12 SIP accounts, eight MPK extension keys with two left/right navigation keys, dual LCD screens with digital BLF keys and 40 multi-purpose keys. Those figures describe different interface and identity layers. They do not establish 12 simultaneous calls, 40 physical buttons, 40 monitored colleagues visible at once or carrier capacity.
The main display is listed as a 2.8-inch 320-by-240 color LCD with a second 2.4-inch display. Map the required line appearances, BLF targets, speed dials and navigation pages on the exact firmware. A dual display can reduce dependence on an external sidecar, but the product comparison currently lists no extension-module support for this model.
Read the product label before choosing firmware
Grandstream's current firmware directory separates GRP2614 legacy hardware revision 1.x from non-legacy revision 2 or later using the rear product-label part number. At review, it lists general firmware 1.0.13.127 for the family, states that firmware 1.0.15.x is not applicable to legacy v1.x GRP261x hardware and exposes 1.0.15.19 as beta for non-legacy hardware. A beta listing is not a production recommendation.
The same directory says a move from 1.0.13.x or 1.0.11.x to 1.0.15.1 or later requires transition firmware 2.0.15.0. Record part number, hardware revision, installed version, target branch, transition requirement, configuration backup and recovery trigger before touching a fleet. Do not infer downgrade safety or cross-hardware image compatibility.
Bind Wi-Fi capability to hardware version
The product highlights still describe integrated dual-band 802.11a/b/g/n/ac Wi-Fi, while the current comparison table adds 802.11ax Wi-Fi 6 only for hardware version 5.0 and above. Preserve both records as a hardware boundary rather than rewriting every GRP2614 as Wi-Fi 6. Verify the label, firmware support, regulatory domain, SSID security and actual association mode.
The phone also lists dual switched auto-sensing Gigabit Ethernet ports with integrated PoE and integrated Bluetooth. Treat wired access, wireless access, the downstream PC port, PoE budget and Bluetooth accessory as separate acceptance paths. Wi-Fi does not remove the need for an approved power source, and a successful association does not prove roaming, voice quality or recovery.
Keep security claims and management ownership scoped
Grandstream lists secure boot, dual firmware images and encrypted data storage as exact-model protections, and positions GDMS for provisioning, management, monitoring and troubleshooting. These claims do not prove the deployed firmware, certificate state, tenant ownership, administrator access or privacy configuration. Inventory who owns the GDMS site, device association, firmware policy, local administrator credential, recovery email and offboarding path.
A previously managed phone can remain tied to another organization's control plane. Verify release or reassignment before reuse, and do not expose diagnostic exports or configuration files without reviewing their account, address and credential content.
Accept the exact phone and rollback path
Pilot registration, inbound and outbound calls, hold, blind and attended transfer, BLF updates, voicemail indication, DTMF, both audio directions, headset or Bluetooth behavior where required, wired and wireless recovery, reboot and provisioning reapplication. Test the PC passthrough port under representative desk traffic only if that topology will be used. Verify emergency routing under the provider-approved non-live procedure and keep an alternate communication path during rollout.
Record model, part number, hardware revision, installed firmware, configuration source, PBX build and acceptance results together. No phone, firmware image, transition, downgrade, screen, key, SIP account, call, codec, PoE source, Ethernet path, Wi-Fi network, Bluetooth accessory, GDMS tenant, security control, emergency route, price, availability or support response was tested for this guide.
Watch the explanation
Shows the difference between claiming a device, changing one endpoint and applying a model or site template. Useful for understanding configuration scope before a fleet rollout.
Read applicability and editorial notes →Watch this video here
Grandstream’s 2023 GDMS interface. Verify the current console, supported models and firmware before following clicks. Review used the available transcript and primary references; audio and screen readability remain unverified.
The player loads only when you choose Watch here. Playback uses YouTube’s privacy-enhanced embed; YouTube processes playback data.
Sources & applicability
Primary references for the technical details above. Operational examples and planning checklists are VoIP.info editorial guidance.
- Grandstream GRP2614 manufacturer specifications ↗
- Grandstream firmware and support resources ↗
- Grandstream GRP mid-range documentation centre ↗
Examples require adaptation to your topology. No live PBX or hardware testing is claimed.