... dynamic JITTER BUFFE Security l Embedded firewall module, packet filter, IP port shielding, anti URL attack Support signaling, media, fax ... intelligent l routing. l support smart calling routing selection for IP/PSTN rounting. l support FXO calling forwarding encypted authentication. ... l Compatiable with voice gateway,IAD,AG,MG devices with H.323 and SIP protocol from l CISCO,Notel,Lucent,ZTE,Huwei ...