... for anti ARP spoofingIP/MAC filtering, website filteringIP PBX features:Auto Attendant IVR with time schedule, queuing, operator handling, ... PIN, emergent call, speed dial, select trunk with dial prefix, hot line(immediate and delay)Dial-in System Authentication with PINAccess Authentication with ... -throughInterface typeLAN: 2 x 10/100M Auto MDI/MDIXWAN: 1 x 10/100M Auto MDI/MDIXVoice: 1 phone and 1 ...