VoIP Gateway –

Both support SIP and H.323 protocols: SIP Registration and Digest Authentication; H.323
Gatekeeper Registration.

Overview

Feature List

• VoIP Key Features

  • Both support SIP and H.323 protocols: SIP Registration and Digest Authentication; H.323
    Gatekeeper Registration.
  • Single Number / Account for multiple ports.
  • Caller ID Delivery: FXS support DTMF&FSK Caller ID generation.
    
  • Flexible and 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: This feature provides good voice quality when user place a VoIP call and also
    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.

Specification :

Telephony Specification:

• Voice Codec: G.711(A-law /μ-law), G.729 AB, G.723 (6.3 Kbps / 5.3Kbps)
  (Note: Two different Codec can not exist at the same time)
• Echo Cancellation: G.165/G168
• FXO hang up detection / anti-seized : Tone Learning Automatically / Manual 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 Metering (Customized)
• Support MWI (Message Waiting Indicator) by SIP Notify.

IP Specifications:

• H.323 v2/v3/v4 and SIP (RFC 3261) , SDP (RFC 2327), Symmetric RTP,
  STUN (RFC3489), ENUM (RFC 2916), RTP Payload for DTMF Digits (RFC2833),
  Outbound Proxy Support.
• LAN :Support Virtual Server, DHCP Server
• WAN: Support PPPoE client, DHCP client, Fix IP Address, DDNS client
• Network Address Translation: Providing build-in NAT router function.
• Smart QoS: Guarantee the voice bandwidth
• IP TOS (IP Precedence) / DiffServ

Call Features

• Voice channels status display
• Direct Dialing Mode : peer to peer call (support IP Address Call or Domain Name Call)
• Register Call Mode : register to SIP Proxy Server or H.323 Gatekeeper
• Adjustable volume : - 9 db ~ 9 db
• Silence Compression / VAD
• Auto Dial for speed
• Dynamic Jitter Buffer
• Hot-Line and Warm-Line Support
  

Configuration & Management

• Web-based Graphical User Interface
• Remote management over the IP Network
• FTP firmware upgrade
• Backup and Restore Configuration file
• Syslog client support
  

General Specification

• AC power : AC100V-240V, DC12V/1.5A,50/60 Hz
• Temperature: 0°C ~ 40°C (Operation)
• Humidity: up to 90% non-condensing
• Emission: FCC Part 15 Class B, CE Mark
• Dimension : 170 x 100 x 35 mm
• Weight: 200

Application Graph