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    Buy WellGate 3504A four-port telephone extension
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    Description
    WellGate 3504A FXS is a four-port telephone extension to IP network gateway and support H.323 v2/v3/v4 or SIP RFC 3261protocol. It provides telephone services and T.38 fax over IP network with easy operation and configuration for ITSP / ISP (Internet Telephony Services Provider) and Office / SOHO IP-PBX application.

    Benefits
    • Easy access to IP from phone set or PBX
    • Cost Saving - Telephone call from VPN or public Internet
    • Follows the existing telephone call dial plan
    • Easy interface to ADSL/Cable Modem or Leased line
      equipment
    • Easy to integrate with all kinds of IP-PBXs
    • Provision Management via APSCOM PRO-9500 Server
      Specification

    Specification

    H.323 Version SIP version
    Protocol ITU-T H.323 v2/v3/v4 compliance SIP RFC3261
    Compatible Server GnuGK(Behind NAT) OpenSER Asterisk
    Telephony
    Features
    Call Hold, Call Transfer, Call
    Forward (H.450)
    Call Hold
    Call Transfer
    Call Forward
    FAX Support Automatically FAX detection
    T.38 G3 FAX
    Group 3 Fax relay at 2.4 - 14.4 kbps
    Automatically FAX detection
    T.38 G3 FAX
    Group 3 Fax relay at 2.4 - 14.4 kbps
    Audio Codec
    Support
    G.711A/?-law, G.723.1, G.729A, G.729
    G.729B, G.729AB
    G.711A/?-law, G.723.1, G.729A, G.729
    G.729B, G.729AB
    Network
    Interface
    10/100Base-T Ethernet RJ-45 port x 2 10/100Base-T Ethernet RJ-45 port x 2
    FXS Interface RJ-11 Telephone port (FXS) x 4
    2-wire loop start
    Programmable AC impedance, Feeding
    voltage, Ring Voltage, Ring Cadence,
    Loop current and call progress tone
    ON-Hook Voltage: 48Vdc
    Ring Voltage: 50 V RMS
    Loop Current: Constant 23mA
    RJ-11 Telephone port (FXS) x 4
    2-wire loop start
    Programmable AC impedance, Feeding
    voltage, Ring Voltage, Ring Cadence,
    Loop current and call progress tone
    ON-Hook Voltage: 48Vdc
    Ring Voltage: 50 V RMS
    Loop Current: Constant 23mA



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