Grandstream Networks GRP2612P 4 Lines 2 SIP Accounts PoE nanostation-m-ac also the Fast Ethernet distance

also the Fast Ethernet distance can be extended from 2km (Multi-Mode fiber cable) up to 20/40/60 kilometers (Single-Mode fiber cable)

IP source guard and dynamic ARP inspection functions to prevent IP snooping from attack and discard ARP packets with invalid MAC address

Powerful Security from Layer 2 to Layer 4

The distance can be extended from 550 meters to 2 kilometers (multi-mode fiber) and up to 10/20/30/40/50/60/70/120 kilometers (single-mode fiber or WDM fiber)

But most of the time

Grandstream Networks GRP2612P 4 Lines 2 SIP Accounts PoE nanostation-m-ac also the Fast Ethernet distanceGrandstream GRP2612P Carrier grade IP Phone Grandstream GRP2612P is a powerful carrier grade IP Phone featuring 2 lines, PoE and zero touch provisioning to make mass deployment and management a breeze. Boasting a color LCD display with swappable faceplates for easy logo customization, 16 virtual multi purpose keys, and enterprise level security, the GRP2612P meets the needs of any business or organization. Grandstream GRP2612P Carrier grade IP Phone