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✅Supports Up to 6 Lines & SIP Accounts Dual Color LCD Displays
✅large 4.3″ primary LCD and a 2.4″ secondary LCD
✅High-Definition Audio
✅Dual Gigabit Ethernet Ports with PoE Support
✅Two 10/100/1000 Mbps Ethernet ports Integrated Dual-Band Wi-Fi — Built-in wireless (2.4 GHz & 5 GHz) provides
✅Integrated Bluetooth
✅48 Virtual Multi-Purpose Keys (VPKs)
✅Easy Menu Navigation Wide Codec Support (Including Opus)
✅Enterprise-Level Security & Management
✅Carrier-Grade Protection
✅Zero-Touch Provisioning & GDMS Support
✅Flexible Installation Options
✅RJ9/EHS Headset Support
✅Advanced Call Handling
✅Large Contact Directory & LDAP Support
✅QoS & Network Optimization
The Grandstream SIP-GRP2616 is a high-end, carrier-grade IP phone built for demanding business environments, enterprise deployments, and high-volume communication workflows. Featuring multi-line capability, dual color displays, advanced audio quality, and robust connectivity options, this phone combines professional-grade performance with flexible deployment and easy management. Designed to streamline communication across busy office settings, the GRP2616 offers an intuitive user experience while supporting modern VoIP standards and security features for reliable daily operation.




