Description

Key Facts SIP+H.**3 Polarity Reversal Detection NAT Traversal Smart-QoS Guaranteed Packing Detail SC**6: Caller ID Delivery & Detection VoIP call Dialing Book AC termination Impedance: **0/**0OHM & complex impedance NAT traversal Call Hunting Voice channels status display Pulse Dial support Flash Detection & Generation Program Codec: G.**1(A-law/Î&frac*4;-law), G.**9 AB, G.**3 (6.3Kbps/ 5.3Kbps) FAX support: T.*0/T.*8 Echo Cancellation: G.**5/G**8 FXO Caller ID detection : DTMF & FSK (Optional) FXO hang up detection/anti-seized: Tone Learning Auto/Manual Tone Learning (Optional) Support Battery Reverse Detection & Voice Detection FXO answer delay time: Support delay 0 ?***0 ms to answer Fail safe Mechanism (FXS relay to FXO *2KHz & *6KHz Metering (Customized) H.**3 v2/v3/v4 & SIP (RFC ***1), SDP (RFC ***7), Symmetric RTP, STUN (RFC***9), ENUM (RFC ***6), RTP Payload for DTMF Digits (RFC***3), Outbound Proxy Support LAN: Support Virtual Server, DHCP WAN: Support PPPoE client, DHCP client, Fix IP Address, DDNS client Smart QoS IP TOS (IP Precedence)/DiffServ Voice channels status display Direct Dialing Mode: peer to peer call (support IP Address Call or Domain Name Call) Register to SIP or H.**3 Adjustable volume: - 9 db ~ 9 db Silence Compression Auto Dial for speed Dynamic Jitter Buffer Hot-Line Support CONFIG & MANAGEMENT: Web-based Graphical User Interface RS**2 for configuration Remote management over IP Network FTP firmware upgrade Backup & Restore Configuration file Syslog client support