24 Port, 32 Port, 4 Port, 8 Port, 16 Port | — |
Connectors: 2-32 shielded female RJ-11 jacks, Number of ports: 2-32 FXO/FXS configurable, Use multiple gateway units for higher port counts | — |
Connector: 2 shielded female RJ-45 jack for LAN, Network Interface: 10/100 Base-T Ethernet LAN port | — |
RTP/RTCP for delivery of voice, SIP per RFC 3261 | — |
T.38 FoIP transcode fax from T.30 fax protocol (supporting V.17) modulation schemes, T.38 for transmission over a packet network | — |
DTMF detection, and fax tone detection, G.711 μ-Law and A-Law, G.723.1, G.729AB Silence suppression with comfort noise G.168 automatic echo cancellation Call Progress Analysis (CPA), Including Positive Voice Detection, Positive Answering Machine Detection (PAMD) | — |
From IP to PSTN or from PSTN to IP, IP fault tolerance, IP load balancing, User configuration list of VoIP endpoints | SIP registration to multiple proxies |
3 Years From Manufacturer | N/A |
FXO, FXS | — |
Synway | Digium |
— | 8E1/T1 and 240 SIP Channels, 1E1/T1 and 30 SIP channels, 2E1/T1 and 60 SIP channels, 4E1/T1 and 120 SIP channels |
— | 1G802F, G.711A 64 kbps, G.711U 64 kbps, G.722 64 kbps, G.726, G.729 A/B 8 kbps |
— | 2 T1/E1/PRI w/ RJ-45 1 10/100/1000 Ethernet |