General

•SIP(RFC3261) UDP, TCP for Microsoft Lync
•IMS
•Network Telnet, SSH, HTTP, DHCP Client, PPPoE Client, Radius, DNS
•Media Processing
•Caller ID Bellcore Type 1&2, ETSI, BT, NTT, and DTMF-based CID
•Codes G.711a/mu, G.729A
•DTMF Transparent transmission, RFC2833, SIP-INFO, Hook-flash events
•Fax over IP  T.38 compliant Group 3 Fax Relay up to 33.6kbps and auto-switch to
•T.38 from G.711 Fax pass-through
•Fax data pump V.17, V.21, V.27ter, V.29, V.34 for T.38 fax relay
•Support Smart Fax over IP (SFoIP) to make fax event more reliable
•Disconnect methods Busy tone, Polarity reversal/wink, Loop current
•Echo cancellation
•User-defined ports SIP, HTTP port to access the Web GUI, RTP
•Whitelist Whitelist of Web GUI and Telnet, IP address filtering of SIP
•Encryption scheme Encryption on SIP signaling or/and media streams
•Ping blocking/unblocking

Advanced Fetures

•QoS DiffServ, TOS, 802.1P/Q VLAN tagging
•High Availability
•Redundancy Primary-Standby, Active-Standby, Load balancing
•Failover PSTN failover on power or network failure
•Remote Management
•Device management TR069, SNMP
•Auto provision TFTP, FTP, HTTP, DHCP option 66
•Call transfer Blind transfer, Consultative transfer
•Call forward Call forward all, Call forward no answer, Call forward busy
•Call control Routing based on the caller or callee number, Digitmap, 3-way calling,
•Speed dialing, Do not disturb, Forking, Color ringback tone, Hunt group,
•Ring cadence, Message Waiting Indicator
•Log management Logs with 8 levels, Syslog
•Packet capturing Ethereal capturing, Port capturing
•Configuration Configuration file import/export, Resetting to the factory default
•Status and statistic Call status and history, device state monitoring and statistics collection
•Version Firmware upgrade via Web GUI

Hardware

•CPU 700MHz
•RAM 128MB
•FLASH 16MB
•Dimensions(H×W×D ) 1.38 × 8.98 × 5.33 in. (35 × 228 × 135.5 mm)
•Weight (net) 1.82 lb (0.83 kg) (Max.)
•Power 12VDC/1.5A
•Mounting mechanism Desktop or rack
•Environmental Requirements
•Operating Temperature: 32 to 104°F (0 to 40°C), Humidity: 10 to 90% RH (non-condensing)
•Storage Temperature: -40 to 158°F (-40 to 70°C), Humidity: 5 to 90% RH (non-condensing)