A 2.8-inch color screen, two SIP lines, six dual-color BLF-capable line keys, four XML soft keys, dual gigabit ethernet, and PoE. The GRP2612 is Grandstream's mid-tier entry — a real upgrade over the entry chassis without crossing into the $130+ territory.
The GRP2612 is Grandstream's mid-tier two-line phone, and it is the model we tend to ship more of than any other GRP unit. Two SIP accounts is plenty for 90% of desks (main line + a personal extension, or main + direct DID), and the six dual-color line keys give you four free for BLF monitoring after you assign your two SIP lines.
Where it earns its price over the GRP2603 (a similar but smaller phone): the 2.8-inch color screen is a real upgrade — big enough to comfortably browse a 100-contact directory, big enough to show full caller ID without truncation, big enough that the UI feels modern instead of cramped. The processor is faster too; menus and contact lookups feel instant where the GRP2603 can lag a half-second after a year of firmware updates.
The GRP2612W variant adds dual-band Wi-Fi for about $20 more, and we recommend it by default unless every desk in the deployment is permanently ethernet-wired. Bluetooth is not available on this model — you have to step up to the GRP2614 for that. If a single user in your fleet needs Bluetooth, jump to the GRP2614 instead and standardize on it.
Where it does not fit: if you need more than two SIP accounts simultaneously (jump to GRP2613 / GRP2614 — same body, 16-line capability), if you need a USB headset port (GRP2614+), or if you need sidecar expansion modules (GRP2614/2615 with GBX20). For everyone else who just wants a clean, modern, mid-tier business desk phone, this is the one.
| Display & user interface | |
| Display | 2.8-inch 320×240 color TFT LCD |
| Programmable keys | 6 dual-color line keys (each BLF-capable, configurable per-line) |
| Soft keys | 4 context-sensitive XML soft keys |
| Navigation | 5-way navigation, dedicated hold / transfer / mute / message keys |
| VoIP & SIP | |
| SIP accounts | 2 SIP accounts, 2 lines |
| Protocols | SIP RFC3261, NAT (STUN), TLS, SRTP, BLF, SCA, shared call appearance |
| Codecs | Opus, G.722, G.711a/u, G.726, G.729A/B, iLBC |
| Provisioning | TR-069, XML (HTTP/HTTPS/TFTP/FTP), GDMS |
| Audio | |
| HD voice | HD handset and HD speakerphone (G.722 wideband) |
| Speaker | Full-duplex hands-free with AEC |
| Headset | RJ9 wired headset port; no USB / EHS |
| Connectivity | |
| Ethernet | Dual 10/100/1000 Mbps gigabit (LAN + PC pass-through) |
| PoE | IEEE 802.3af Class 1 |
| Wi-Fi | Optional via GRP2612W variant (dual-band 2.4 / 5 GHz) |
| Bluetooth | Not supported on this model |
| Physical | |
| Dimensions | 210 × 191 × 75 mm |
| Weight | Approximately 0.85 kg |
| Wall mount | Yes, integrated bracket |
| In the box (from voip.army) | |
| Included | GRP2612 handset, base, curl cord, ethernet cable, stand, provisioning card |
| Not included | Power adapter (PoE preferred) |
Plug the GRP2612 into PoE and ethernet. About a minute later it has registered to your extension. Same auto-provisioning flow as every other supported phone — no SIP credentials to type, no firmware to chase.
Boot, fetch config from our provisioning server, register, ready. About one minute on a normal connection.
2 lines per phone. Each line key has a dual-color LED for status at a glance.
6 dual-color · BLF-capable mapped from the voip.army portal — BLF, paging, parking, transfer destinations.
Bringing your own? Send the MAC, factory-reset, plug in. No charge to add it to the fleet.
Standard PoE — any 802.3af-compliant switch from the last 15 years powers the phone without an adapter.
Provisioning template tested against every Grandstream firmware release for GRP2612. We catch regressions before they reach your fleet.
Tell us how many you need and what extensions to map. We ship pre-configured next business day; you plug them in and they work.