A.U1900 B.ECS C.Meeting AS D.Meeting Server
A.高度集成,只有2U高度,支持224線模擬用戶 B.內(nèi)置Voicemail C.內(nèi)置語(yǔ)音會(huì)議 D.電源冗余,交直流可選
A.36 B.100 C.300 D.1000