Allied Telesis AT-iMG634WA-R2, G.168, G.711, G.726, G.729, 32 MB, 8 MB, SNMP v1/v2/v3, Telnet, RIP-1, RIP-2, H.323 3.0, SIP 2.0, MGCP/NCS 1.0 Allied Telesis AT-iMG634WA-R2. Voice codecs: G.168, G.711, G.726, G.729. Internal memory: 32 MB, Flash memory: 8 MB. Management protocols: SNMP v1/v2/v3, Telnet, Routing protocols: RIP-1, RIP-2, VoIP protocols: H.323 3.0, SIP 2.0, MGCP/NCS 1.0. Ethernet LAN data rates: 10,100 Mbit/s, Security features: SIF, NAT, DSL specification: ADSL2/2+. Authentication method: PAP/CHAP