Grandstream admin phone. 4.3" colour LCD.

10-Line Professional IP Phone Designed for Mass Deployment and Easy Management
The GRP2615 features 40 multi-purpose keys (MPKs),  integrated Wi-Fi, Bluetooth support, a color LCD with swappable face plates for easy logo customization and more and is supported by Grandstream’s Device Management System (GDMS). 

• HD audio, handset and speakerphone with support for wide-band audio
• 10 line keys with up to 5 SIP accounts
• 40 built-in digital BLF keys; available extension module offers 40 BLF/speed dial keys per module
• Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage
• integrated dual-band Wi-Fi 802.11 a/b/g/n/ac (2.4Ghz & 5Ghz)
• Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE
• Swappable face plates to allow for easy logo customization
• Integrated Bluetooth