SIP, SIP-T, H.323; SS7/C7/No.7, PRI optional 1 / 2 / 4 / 8 * E1 / T1 optional Up to 256 concurrent calls(G.711,G.723,G.729,etc.) Flexible dial plan & Number manipulation Intelligent multiple trunk routings FAX & Voice All-in-one(Support FAX server function) Both central and standalone remote management (SNMP V1, V2; TR-069/TR-104) Proven integration with leading PBXs & SIP Servers High ...