960B Multi-Channel Test Instrument

Powerful multi-channel IP telephony testing

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The 960B is a powerful multi-channel IP Telephony precision test instrument combining TDM, Ethernet and Analog interfaces and simultaneous test capability to comprehensively test and monitor Next Generation Networks in Real-Time.

The 960B can generate one or many end-to-end test calls from the packet, TDM, and/or Analog interfaces while monitoring the bearer channel (TDM, RTP, Analog) to flush out real-time performance issues.

Key Features

Echo Cancellation Performance

  • Passive Echo Monitor (INMD ITU-P.561)
  • Multi-Echo Detection
  • Echo Level, Echo Delay
  • Echo Canceller Disabler Tone(s)
  • Dispersive Echo Emulation
  • Double Talk Test and Emulation
  • Echo Cancellation Convergence Testing
  • Echo Cancellation Depth
  • G.168 Test Suite and Echo Can Control


Voice Quality and Telephony Transparency

  • Mean Opinion Score (MOS)
  • One-way and Round Trip Delay
  • Comfort Noise Level (CNG)
  • Audio Level (Gain/Attenuation)
  • Jitter Buffer Performance
  • Packet/Frame Loss (% Average burst length)
  • DTMF/MF Verification
  • Fax Transparency
  • V.xx Modem Transparency
  • RTP Traffic Generation
  • Call Loading


Digital Facility Turn-up & Validation

  • Multi-Channel BERT and Fractional E1/T1


Test Interfaces

  • Two T1/E1 - 48/64 Simultaneous Tests
  • Four T1/E1 - 96/124 Simultaneous Tests
  • Dual 10/100 BT - 128 Simultaneous Tests
  • Quad 2-wire FXO
  • Dual 4-wire Dry


Call Setup Signaling

  • CAS
  • SIP


Passive Monitor

  • SIP Call Monitor
  • RTP decode and Monitor
  • RTCP decode and Monitor
  • Echo Level and Delay
  • PRI-ISDN Call Monitor
  • Passively and/or actively detect & measure AUDIO LEVELS and ECHO
  • Assess voice quality - MOS, DELAY, NOISE, etc.
  • Qualify Echo Cancellers - Dispersive Echo and programmable delay
  • Verify FAX/data modem transparency
  • Verify VAD, Jitter Buffer, Comfort Noise, silence suppression performance
  • Emulate Fax and True IP phones with jitter buffers and real RTP
  • Filter, decode and analyze RTP/RTCP
  • Detect and monitor rogue/illegal VoIP calls