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PCI cards

The Echo PCI Voice Recording boards are designed for medium to large organisation. Each card only occupies a single standard 5V PCI slot and combines a compact form factor with very low power consumption.

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On-board DSPs and large streaming buffers impose very little demand on system and application resources.

D-channel signalling supports Call Setup, Connect, Clear, DDI number and CLI number decoding. It also supports all major ISDN variants, Q.SIG, DASS-2, DPNSS and various PBX Digital handset D-channel protocols. This means that simultaneous recording on all channels of both upstream and downstream sides of a conversation is possible.

The speech encoding/compression used is 64kbit/s A-law (G.711), 36kbit/s proprietary encoding. The estimated MTBF is 600,000 hours.

Features & benefits​

  • High density half length PCI card
  • Fits in every standard 5V PCI slot
  • Non intrusive and undetectable high impedance passive monitoring
  • Dialled number and Caller ID signalling support
  • Digital Signal Processors for voice streaming and on-board D-channel protocol processing
  • Models for PRI-ISDN, T1-ISDN, BRI-ISDN, Digital handsets and Analog handset / trunk lines
  • 1, 2, 4, 8 and 16 channel Analog, Digital handset and 4-wire S0bus models
  • Fractional, 30 channel and 60 channel PRI-ISDN / E1 models
  • 23 channel and 46 channel T1-ISDN models
  • Protocol support for all major ISDN variants, Q.SIG, DASS-2 and DPNSS
  • Analog models support DTMF, FSK Caller ID, AGC and speech detection
  • Digital models support all major PBX with highly accurate DigitalVox start/stop triggering and D-channel support for various PBXs
  • Accurate start/stop triggering for non-protocol E1/T1 PCM applications
  • Supports Windows XP SP3, Vista, 7, 8, 10, Server 2003, 2008 and 2012
  • 64kbit/s A-law and high quality compressed 36kbit/s speech encoding
  • Supports writing of directly-playable WAV files to disk
  • CE, FCC and RoHS compliance

Technical specifications​

Mechanical Characteristics: 3U or 7U height 19" rack Operating temperature: 0 oC to +60 oC Humidity: 5% to 80% non-condensing Maximum power requirements: +5Vdc (400 mA), +12Vdc (50 mA), -12Vdc (50 mA) Operating Systems supported: All 32-bit and 64-bit Windows editions Maximum density: Up to 12 cards or 720 ports per chassis