The Grandstream GRP2611G is a 3 line carrier grade VoIP desk phone designed for high volume deployments, offering dual gigabit ports, HD audio, and cloud zero touch provisioning via GDMS.
Features:
- 3-Line Support: Supports up to 3 lines and 3 SIP accounts for flexible business use.
- 12 Virtual Multi-Purpose Keys (VPKs): Up to 12 programmable BLF or function keys for efficient call handling.
- Dual Gigabit Ethernet with PoE: Auto-sensing 10/100/1000 Mbps ports and integrated 802.3af Power-over-Ethernet for simplified wiring.
- 2.8 Colour TFT Display: 320 240 resolution for clear screen visibility and user interface.
- HD Audio + Noise Shield Technology: Supports wideband audio codecs like G.722 and Opus, and uses noise-shielding to reduce background interference.
- Swappable Faceplate: Customisable front plate allows for logos or branding changes easily.
- Enterprise-Level Security: Includes secure boot, dual firmware images, encrypted data storage, TLS/SRTP, and 802.1x support.
- Zero-Touch Provisioning via GDMS: Compatible with the Grandstream Device Management System for centralised provisioning and monitoring.
- 5-Way Audio Conferencing: Built-in support for up to 5-way local conference calls.
Specifications:
- Display: 2.8 inch, 320 40 TFT colour LCD
- Lines: 3 physical lines
- SIP Accounts: Up to 3 SIP accounts
- Virtual Keys: Up to 12 virtual multi-purpose keys (VPKs)
- Audio Conferencing: Supports up to 5-way audio conferencing
- Network Interfaces: Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE (802.3af)
- Headset Support: RJ9 headset jack with EHS support
- Audio Codecs & Features:
- G.711 /a-law, G.722 (wideband), G.726, G.723, iLBC, Opus
- In-band & out-of-band DTMF, VAD, CNG, AEC, PLC, AJB, AGC
- Telephony Features:
- Hold, transfer, forward, call park, call pickup
- Shared Call Appearance (SCA) / Bridged Line Appearance (BLA)
- Downloadable phonebook (XML/LDAP, up to 1000 entries), call log (up to 1000 records)
- Click-to-dial, hot-desking, customizable dial plan
- Security & Provisioning: Secure boot, dual firmware images, 256-bit AES encrypted configuration, TLS, SRTP, 802.1x, mass provisioning via GDMS/TR-069 or encrypted XML file
- Power & Energy:
- Power adapter input: 100-240 V AC 5 V/0.6 A output
- Integrated PoE (802.3af) support
- Max power consumption: ~3 W (adapter) or ~3.8 W (PoE)
- Supports IEEE 802.3az Energy-Efficient Ethernet
- Physical & Environmental:
- Dimensions: 203 mm x 186 mm x 28 mm
- Weight: Approx. 0.45 kg
- Operating Temperature: 0 C to 40 C
- Storage Temperature: -10 C to 60 C
- Humidity: 10% to 90% non-condensing
- Whats in the Box:
- GRP2611G phone unit
- Handset with cord
- Phone stand (2 angle positions)
- 5 V power adapter
- Network (Ethernet) cable
- Quick Installation Guide



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