The Grandstream GRP2611G is a 3-line carrier-grade IP phone designed for high-volume deployments, offering robust features and centralized management capabilities. Below is a detailed overview of its specifications:
📞 Key Features
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Lines & SIP Accounts: Supports 3 SIP accounts and 3 multi-purpose line keys.
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Display: 2.8-inch (320×240) color LCD screen.
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HD Audio: Supports major codecs including G.722 and Opus for high-definition audio quality.
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Noise Shield Technology: Reduces background noise for clearer communication.
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Busy Lamp Field (BLF): Up to 12 digital BLF keys for efficient call management.
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Audio Conferencing: Supports 5-way audio conferencing.
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Customizable Faceplate: Swappable faceplate allows for easy logo customization.
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Device Management: Compatible with Grandstream’s Device Management System (GDMS) for centralized provisioning and management.
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Security: Features secure boot, dual firmware images, and encrypted data storage for enterprise-level protection.
🔌 Connectivity & Interfaces
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Ethernet Ports: Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated Power over Ethernet (PoE) support.
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Headset Support: RJ9 headset jack with Electronic Hook Switch (EHS) support for Plantronics headsets.
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Wi-Fi: Not supported on this model.
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Wall Mounting: Optional wall mount kit available for flexible installation.
🎧 Audio & Telephony Features
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Voice Codecs: Supports G.711µ/a-law, G.722 (wideband), G.726, G.723, G.729A/B, iLBC, and Opus.
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DTMF Support: In-band, out-of-band (RFC2833), and SIP INFO.
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Advanced Audio Features: Includes Voice Activity Detection (VAD), Comfort Noise Generation (CNG), Acoustic Echo Cancellation (AEC), Packet Loss Concealment (PLC), Adaptive Jitter Buffer (AJB), and Automatic Gain Control (AGC).
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Telephony Functions: Call hold, transfer, forward, call park, call pickup, shared-call appearance (SCA), bridged-line appearance (BLA), downloadable phonebook (XML, LDAP, up to 1000 entries), call waiting, and call log (up to 1000 records).
🔐 Security & Provisioning
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Security Protocols: Supports SRTP, TLS, 802.1x media access control, and 256-bit AES encrypted configuration files.
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Provisioning Options: Firmware upgrades via FTP/TFTP/TFTPS/HTTP/HTTPS, mass provisioning using GDMS/TR-069, or AES encrypted XML configuration files.
⚙️ Physical & Environmental Specifications
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Dimensions: Approximately 9 x 22 x 22 cm.
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Weight: Approximately 0.786 kg.
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Power Consumption: Maximum of 3W.
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Operating Temperature: 0°C to 40°C.
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Storage Temperature: -10°C to 60°C.
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Humidity: 10% to 90% non-condensing.
