Smart resource for interactive telephony applications

The SmartWORKS DT provides trunk termination and call control on digital T1/E1 networks. Call progress monitoring (CPM), DTMF detection, voice play/record, and barge-in features makes this blade an invaluable resource for interactive telephony applications.

  • Terminate Environment
    The SmartWORKS DT connects directly to a Central Office or PBX providing line supervision to answer and generate inbound and outbound calls. Each blade processes up to 60 channels, with a maximum of 512 channels per system. Each channel has programmable volume control, tone generation, echo cancellation, and Call Progress Monitoring. Outbound dialing and call control is managed through the SmartWORKS API.

    International ISDN Support
    The SmartWORKS DT supports Channel Associated Signaling (CAS), and any Q.931 based ISDN variant. Trunk coding and framing is selected on a per framer basis. This allows a single blade to control two trunks, each with different settings.

    Built-in Performance Monitoring
    Network conditions and call statistics are available via the SmartWORKS API. Event driven alarms are reported for loss of signal conditions or synchronization errors. Framer and call statistics are available through standard API function calls.

    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
    • Beep Tone Generation for Passive Mode
    • Software Switchable T1/E1 Interface
    • Auto-configures for all ISDN variants
    • ANI and DNIS
    • On-board DSP to complete voice processing
    • Codec support
  • Hardware 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 (Call for variant details), Vista (planned)
    Technical Specifications Maximum boards per system: Any combination up to 512 ports · Maximum ports per system: Up to 512
    Control Microprocessor Motorola Coldfire™ RISC (50 MHz)
    Environmental Conditions Operating Temperature: 0C to +50C · Storage Temperature: -20C to +85C · Humidity: 8% to 80% non-condensing
    Storage humidity: 8% to 80% non-condensing
    Physical Characteristics Form Factor: Full-size PCI and PCI express card
    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 · Shared Memory: 16 MB Global shared RAM (PCI express available-1x connector)

    Telephony Interface

    Trunk Type T1/E1 · Trunk Interface: Digital network interface · Connectors: RJ-45 connectors
    Signaling Protocol ISDN, NFAS, CAS, Robbed Bit Signaling, E&M Immediate, E&M wink, FXS, FXO
    T1 Interface Receive Clock Rate: 1.544 MHz +/-200ppm · Transmit Clock: Recovered RX clock or 50 ppm
    Input Level: LBO 0dB to -22dB · Framing: SF (D4), ESF · Line Coding: AMI, B8ZS
    Clock and Data Recovery: Complies with AT&T TR62411 and Bellcore TA-TSY-000170
    Loss of Signal Detection: ANSI T1.231 · Alarm Detection and Integration: LOS, LOF, Yellow, and AIS per ANSI T1.231
    E1 Interface

    Receive Clock Rate: 2.048 +/- 175ppm · Transmit Clock: Recovered RX clock or 50 ppm
    Input Level: 3.2V down to 0.45 V
    Framing: Basic G.704, CRC-4 · Line Coding: AMI, HDB3
    Loss of Signal Detection: per ITU-T G.775 · Alarm Detection and Integration: LOS, LOSMF, TS16, CRC, and Yellow

    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 · Automatic Gain Control (AGC) Programmable from API
    Automatic Volume Control (AVC) Programmable from API · Activity Detection Programmable from API
    Alert Tone Programmable · Frequency Response 300 - 3400 Hz (+/- 3dB)


    Call Progress Monitoring Number of programmable tones: 20 · Number of bandpass filters: 10 · Number of filters per tone: 1,2 or 3
    Number of cycles: 0 to 255 · SIT tones: Yes, programmable frequencies and duration
    Answering Machine Detection: Yes
    Encoding and Decoding 5.3 Kb/s: G.723.1 · 6.3 Kb/s: G.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/MF Tone Detection DTMF digits: 0 - 9, *, #, A, B, C, D · MF R2 Digits 15 Digits Forward and Reverse per Q.441
    Dynamic range: -38 dBm to 0 dBm · Minimum tone detection: 40 ms /programmable · Interdigit timing: 40 ms min.
    Tone Dialing: Frequency variation less than 1 Hz Rate API Programmable
    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
    Trigger Conditions Event Driven Caller ID, Min/Maximum silence, Min/Maximum activity
    Global Tone Generation Tone Type Single or dual frequency · Frequency range 300 Hz – 3400 Hz · Frequency resolution 1 Hz
    Duration 1 ms – 8191 ms programmable in 1 ms steps · Amplitude +3 dBm to –68 dBm · Duration API Programmable
    Voice Processing Echo cancellation G.165 · Caller ID V.23 and Bell 202 · DTMF Detector Primary and Secondary channel
    MF Detection R1 and R2
    Models Available DT3209 Single E1/T1 · DT6409 Dual E1/T1
    SDK AudioCodes Native SmartWORKS API · SmartControl (Control Panel) · SmartVIEW (card functionality test application)
    SmartWF (firmware flash update utility)

    Power Requirements

      PCI 2.2: +3.3 VDC: 2.8 A · +5 VDC: 5mA · -12 VDC: Not Required · +12 VDC: 20 mA · PCI express: +3.3 VDC: 3.2 A


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