Grandstream SFP Fiber modul, single mod, 20km, 1.25Gbps
Grandstream GXP1610 (no PoE) 2,95'' LCD displej, 1SIP účet, 3prog. tlačidlá, dual 10/100MBps
Grandstream SFP Fiber modul, multi mod, 550m, 1.25 Gbps
Grandstream SFP+ Fiber modul, multi mod, 300m, 10Gbps