Detailed Product Description

Modular design to accommodate various types of telephony interfaces  BothSupport SIP and H.323 protocols: SIP Registration and Digest Authentication; H.323 Gatekeeper Registration  SIP Single Number / Account for multiple ports  Caller ID Delivery: FXS support DTMF&FSK Caller ID generation  Smart VoIP call Dialing Book: VoIP call Book could provide any application VoIP call to any type destination (Domain name / IP address, PSTN or PBX) or hunting number setting  AC termination Impedance : 600/900 OHM and complex impedance  Answer Supervision for Polarity Reversal Detection and Voice detection  NAT traversal: This feature allow gateway to operate behind any NAT/Firewall device. Need not to change any configuration of NAT/Firewall like setting virtual server  Smart-QoS Guaranteed : This bandwidth management feature provide good voice quality when user place a VoIP call and access internet at the same time. The gateway will automatically start to reserve bandwidth for voice traffic when VoIP call proceeds  Call Hunting Facility: This function helps gateway to use the lines effectively. This facility automatically transfers your incoming call to a free line. Subscribers need not indicate numerous numbers of each port of gateway  Voice channels status display: This function display each port status like as on-hook off-hook, calling number called number, talk duration, codec  Flash Detection and Generation Program: FXO support Flash Generation and FXS support Flash Detection  STUN support for NAT traversal  FXO answer Mode : FXO provides Ringing Answer, Connection Answer and Non Answer for configuration  VoIP Encryption: Encrypt peer to peer VOIP calls can avoid VoIP blocking of internet Telephony Specification  Voice Codec: G.711(A-law /¼-law), G.729 AB, G.723 (6.3 Kbps / 5.3Kbps)  FAX support : T.30 / T.38  Echo Cancellation: G.165/G168  FXS Tone Table Configuration: Support tone frequency and cadence configuration  FXO hang up detection / anti-seized : Busy Tone Learning Automatically / Manual Busy Tone Learning  Answer supervision: Support Battery Reverse Detection and Voice Detection  FXO answer delay time: Support delay 0  8000 ms to answer  Adjustable AC Termination Impedance : 600 / 900 OHM and complex Impedance  Failsafe Mechanism (FXS relay to FXO) : Power failed bypass support / Internet Failed bypass / Registered Failed bypass / Unconditional bypass  12K Hz and 16K Hz Pulse Metering (Customized)  Support MWI (Message Waiting Indicator) by SIP Notify