Powerline IV Computer Telephony Card for Voice Mail and Call Processing



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Powerline IV Computer Telephony Board


POWERLINE IV Telephony Board

The Powerline IV telephony card (PLIV) operates with IBM compatible 386, 486 and Pentium computers. The PLIV utilizes state-of-the-art Multi-Vendor Vendor Information Protocol (MVIP) for data transfer and inter-board communication. The Line Interface Unit (LIU) on the PLIV is a highly sophisticated analog loop interface, offering exceptional signal clarity and trans-hybrid rejection. The PLIV supports multiple line and multiple board recording and playback and performs expert signal processing, specializing in the recognition of call progress and pulse-dial signals. PLIV utilizes a standard 16-bit ISA interface, which utilizes dual-ported memory and input/output (I/O) ports. By taking advantage of shared RAM, multiple Powerline IV boards can share the same 16K high memory block.

POWERLINE IV FEATURES

  • Four ports per board, up to 32 ports per system
  • Embedded 33 MHz high-performance processor
  • Digital speech recording and playback
  • 32Kb per line memory buffers
  • Industry Standard Architecture (ISA) interface
  • Touch-tone and pulse recognition and transmission
  • Amplified speaker output, any line
  • High quality mu-Law compressed speech
  • Telephone line, microphone, and auxiliary inputs
  • Automatic real-time call progress monitoring
  • Inter-board, cross-board two-line call conferencing
  • MVIP digital telephony bus interface
  • Loop-start/Optional ground-start line interface
  • Standard RJ-14 telephone interface
  • Optional line/local phone interface (headsets)

APPLICATIONS

  • Voice Messaging Systems
  • Alarm Systems
  • Service Bureau
  • Automated Call Distribution
  • DID and Centrex SMDI Serial Interface (optional)
  • Automated Call Transfer and Paging
  • Telemarketing (optional operator in-line switching)
  • Auto Dialer with Database Access
  • Voice Information Systems
  • Sales and Transaction Processing
  • Interactive Voice Response
  • Optional Caller Identification

Requirements:

Powerline IV requires an IBM compatible 386, 486 or Pentium class computer, Powervoice voice processing software OR the C-Lever Developer's Toolkit or Peak Basic Toolkit.

Theory of Operations:

Each Powerline IV card employs principles of multitasking and parallel processing. The host computer and each board's processor access the same native code. The MPU on each PLIV board time-slices telephone speech processing for each of the PLIV's four lines. The inter-card digital telephony bus (MVIP) allows speech processing to be switched between different processors installed in the host computer.

Call Progress & Line Monitoring:

Powerline IV monitors and analyzes tone, amplitude, frequency and cadence to sensitivities as low as -45 dBm. The circuitry can discriminate frequencies to within 25 Hz. The Powerline IV expertly detects line status, loop current interrupts, Calling Party Control pulses and loop current reversals.

Speech Compression:

The Powerline IV meets industry standard mu-law companding.

Processor:

Powerline IV uses an 33 MHz Advanced Micro Devices (AMD) processor for data transfer, control functions and signal processing. The processor is connected to 64Kb of onboard dual-ported RAM.

Software Driver:

Powerline IV's API interface software is a TSR-based driver that operates under MS-DOS. The driver application programming interface (API) can be easily interfaced with C, C++, Pascal and 80x86 Assembler and other programming languages.

PLIV Audio Card Adapter

The PLIV audio card is an optional adapter that plugs directly into the component side of the PLIV card. This audio adapter provides high quality recording capabilities through two 3.5 mm phone jacks, which are accessible through the bracket at the edge of the card. The first jack accepts microphone input; the second jack accepts standard audio input. Both interfaces can be used as tools to create high quality digitized recordings.

In addition to the audio inputs, there is an audio output jack (also 3.5 mm) that acts as an audio output. This output can be used to drive a small speaker, or it can act as an input to an external amplifier. The volume of the speaker output is controlled by a potentiometer, which is also accessible at the bracket at the rear of the card.

[ Technical Specifications ]

For additional information on the PowerVoice application generator, the Powerline IV hardware and the Peak Basic Toolkit contact the Sales Department OR you can download the following files from our FTP site:

  • Powerline IV Hardware Manual (plivhw.zip)
  • Peak Basic Toolkit Manual (pbman.zip)
  • PowerVoice Application Generator Manual (pvman.zip)
  • Latest Changes in PowerVoice (pvupdat.doc)

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