... port;VoIP protocol: H323 v2,H323 v4,SIP,compliance ITEF RFC3261 standard network protocol: IP, ... WEB,Telnet command line,Console for super terminal and NMS Voice processing Technology l CODEC: G. ... Support signaling, media, fax encryption, anti-interference and sniffing, AES standard 128 bit l Encryption Features ... gateway,IAD,AG,MG devices with H.323 and SIP protocol from l CISCO,Notel,Lucent,ZTE,Huwei ...