Grandstream GBX20 HD IP Phone with Extension Module


Display: 4.3-inch (272×480) color LCD screen
Audio: HD audio on speakerphone and handset
Extension Module: GBX20, up to 4 modules per phone
Programmable Keys: 40 per module (20 buttons with 2 pages)
SIP Accounts: Supports up to 16 SIP accounts
Network Interface: Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports
PoE: Yes, Power over Ethernet (802.3af/802.3at)

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