New part 3 year warranty. Provides 16 IP channels (IP Phone or StrataNet Channel) . Provides 32 IP channels when LIPS-X1A subassembly is mounted. 100Base-TX RJ45 port built-in Digital Signal Processor (DSP).1 RS-232 maintenance port. Network Address Translation (NAT) compatible for remote IP telephones when connected to a LIPU. Enhanced version of MEGACO+ for Voice over IP Supports SIP telephones and UIP200. Simultaneously supports Line interfaces.