All-in-one resource for logging behind a PBX

The SmartWORKS NGX is an all-in-one resource for logging behind a PBX. Every key pressed, call taken, and telephone action performed by an agent is automatically decoded and sent to the recording application. A powerful set of features, combined with PBX integration, makes the NGX a true single-slot solution for call logging application providers.

  • Tap Environment
    The NGX is designed for tapping behind a proprietary PBX. Residing between the PBX and agent phones, the SmartWORKS NGX’s high-impedance receivers record both sides of a call without interrupting service. The NGX is available in 8, 16, and 24-port configurations. The SmartWORKS API supports a total of 512 channels per system. As a result, the SmartWORKS NGX is ideal for low- to high-density environments.

    Extensive PBX Support
    Designed with international deployment in mind, the SmartWORKS NGX taps 2-wire, 4-wire, BRI and full duplex PBXs. The list of PBXs the NGX supports is constantly growing. Contact your AudioCodes sales representative for more information.

    Built in Performance Monitoring
    The SmartWORKS API provides framer alarms and network statistics to pass easily into performance monitoring applications. Event-driven framer alarms are generated with a loss of signal condition. Network statistics are available for both sides of the conversation, incoming and outgoing. Statistics such as synchronization errors, line amplitude, noise or clipping are available via a simple API function call.

    Common SmartWORKS API Features:

    • Media Control - Codecs
    • Tone Detection / Generation
    • Caller ID/FSK/DTMF/MF Detection
    • Activity / Silence Detectors
    • Switching (H.100 and MVIP)
    • Automatic Gain Control (AGC)
    • Automatic Volume Control (AVC)
    • Stereo Recording
    • Echo Cancellation
    • Call Progress Monitoring (CPM)
    • Full-duplex Channels
    • Media Streaming
    • Live Monitoring
    • Start/Stop Call Recording Triggers
    • Multiple PBX support
    • Firmware upgradeable to any PBX
    • Wide spectrum of trigger events
    • Summation
    • Codec support
  • Hardware Requirements Pentium 4 or equivalent · 2 GHz or better · PCI motherboard or passive backplane with 3.3V power supply, PCI 2.2 bus
    Operating Systems Windows 2000, Windows XP, Windows 2003 32 bit, Linux, Vista (planned)
    Technical Specifications Maximum boards per system: Any combination up to 512 ports · Maximum ports per system: Up to 512 (16 Boards Maximum)
    Resource Sharing Bus: MVIP or H.100
    Environmental Conditions Form Factor: Full-size PCI or PCIe card · Operating Temperature: 0C to +60C · Boards Status: On-board LEDs
    Clocking: Master/Slave · Storage Temperature: -20C to +85C · Humidity: 8% to 80% non-condensing
    Storage humidity: 8% to 80% non-condensing
    Host Interface (PCI 2.2) Bus Compatibility: Complies with PCISIG Bus Specifications, Rev. 2.2 · Bus Speed: 33 MHz
    Bus Mode: 32 bit bus master/target (PCI express available-1x connector)

    Telephony Interface

    Tap Interface Insertion loss: <1dB · Isolation: Galvanic 500VDC +/-10%, 100VRMS 1 sec · Impedance: Soft-Switchable 1KOhms/100Ohms
    External connector: RJ-21X 25 Pair female
    Analog Jack Audio Connector: 3-pin 0.1” ctr header · Output impedance: 300Ohms · Input impedance: 33KOhms · Return loss: >25dB
    Mic bias: +5VDC @ 4.7KOhms · Input gain: +9dB · Output gain: 2.6dBm @ 300Ohms · Full scale input: 370 mVRMS
    Full scale output:1.5 VRMS open circuit
    PBX Interface PBX Support: Software Configurable (see for a complete list )
    Audio Signal

    LD409, LD809: RJ-14 · LD809X · LD1609, LD2409: RJ-21x (no PCI Express in 409 model)

    Analog Jack/Ports Audio Connector · LD409: 4 ports, no H.100 · LD809: 8 ports · LD1609: 16 ports
    LD2409: 24 ports
    Audio Signal Receive range: -68 dBm to + 3 dBm · Input gain control: +24 to -50 dB · Silence Detection: Programmable from API
    Transmit Volume Control +24 to -50 dB to MVIP/H.100 · Automatic Gain Control (AGC):Programmable from API
    Automatic Volume Control (AVC): Programmable from API


    SDK AudioCodes Native SmartWORKS API · SmartControl (Control Panel) · SmartVIEW (Card functionality test application)
    Activity Detection Programmable from API · Frequency Response: 300 - 3400 Hz (+/- 3dB)
    Encoding and Decoding 5.3 Kb/sG.723.1 · 8 Kb/s:G.729A · 13 Kb/s:GSM 6.10, Microsoft GSM · 16 Kb/s:G.726
    24 Kb/s:G.726, OKI · 32 Kb/s:G.726, OKI · 40 Kb/s:G.726 · 64 Kb/s:μ-law or A-law per G.711,
    8 bit linear PCM (signed and unsigned) · 96 Kb/s:6 Khz 16 bit linear PCM(signed)
    128 Kb/s: 16 bit linear PCM (signed and unsigned) · Wave file formats: Microsoft GSM, Linear signed · 8 and 16-bit PCM
    Digitization Selection Programmable per channel, independent for encode and decode
    DTMF Tone Detection DTMF digits: 0 - 9, *, #, A, B, C, D · Dynamic range: -38 dBm to 0 dBm · Minimum tone detection: 40 ms /programmable
    Interdigit timing: 40 ms min.
    Acceptable Twist Per LSSGR sec. 6, 8 dB forward, 4 dB reverse · Frequency variation: Accept all +/- 1.5%, reject all +/-2.5%
    Noise tolerance: Per LSSGR sec. 6
    Talk Off Bellcore TR-TSY-000762
    D-Channel Events The following types of D-channel events are decoded:
    PBX Event (Command Events) Generated by the PBX and passed to the phone as a command to perform some type of action.
    Signaling These events indicate a call progress tone (dial tone, ring tones), or audio changes
    LEDs These events correspond to light changes on the phone
    Display These events indicate that the LCD on the phone has been updated. These are usually related to the clock display, or messages displayed on the LCD.
    Phone Events Generated by the phone indicating an action has been taken (i.e. button pressed).
    Hook State Off hook and on hook changes occur when the handset is removed or replaced
    Button Events Indicate that a button on the phone was used. For example: digits pressed, speaker buttons etc.

    Power Requirements

    NGX (PCI 2.2 base) + 3.3 VDC: 0.9 A · +5 VDC: 1.5 mA · -12 VDC: 25 mA · +12 VDC: 25 mA
    NGX (PCI 2.2 24 channel) + 3.3 VDC: 1.6 A · +5 VDC: 1.5 mA · -12 VDC: 35 mA · +12 VDC: 35 mA
    NGX (PCI express base) + 3.3 VDC: 1.3 A
    NGX (PCI express 24 channel) + 3.3 VDC: 2.0 A


    Safety EN60950
    IEC60950 (third edition)
    UL60950 · CAN · CSA-C22.2 No
    60950-00 (third edition)
    Emissions EN55022
    47 CFR FCC part 15