Digital Communication Devices (VoIP)

Telephone digital device testing includes performance tests for narrowband and wideband handset, handset, speakerphone telephones/peripherals. Additional performance requirements are provided for cordless, Caller-ID and Environmental considerations.

  • Soft client USB peripherals:
    • Headsets
    • Handsets
    • Speakerphones
  • VoIP telephones and speakerphones
  • Handset (TIA-920.110-B narrowband and wideband, ES 202 737 narrowband & ES 202 739 wideband)
    • Receive
    • Send
    • Sidetone
    • Echo path
  • Speakerphones (TIA-920.120-B narrowband and wideband, ES 202 739 narrowband & ES 202 740 wideband)
    • Receive
    • Send
    • Echo path
  • Headset (TIA-920.130-B narrowband and wideband, ES 202 737 narrowband & ES 202 739 wideband)
    • Receive
    • Send
    • Sidetone
    • Echo path
  • Conversational Gain (TIA-4965)
    • Handset acoustic output gain
  • AST Custom test procedures for parameters not covered by standards:
    • Conference Speakerphone (TIA-470.123 draft, AST Custom)
    • Speakerphones switching (AST Custom based on IEEE-1329)
    • Specialized, proprietary products
  • Additional test procedures:
    • Send quality with background noise
    • Speech quality using ITU-T P.863 (POLQA)
    • Doubletalk
    • Echo Control Characteristics
  • Perpendicular (Axial) orientation testing
  • Transverse (Radial) orientation testing
  • Measuring performance of:
    • Field Intensity 
    • Frequency Response
    • Distortion
    • Noise
    • Signal-to-Noise ratio
  • RF Range (TIA-470.310-D)
  • Simulated Range testing procedures
  • Field range testing procedures
  • Cordless Features (TIA-470.320-C)
    • Talk-time and Standby-time
    • Multi-handset
    • Indicators (low battery, out of range)
  • Battery Charging Analysis (AST Custom)
    • Initial Charge Profile
    • Talk Times
      • Near Field
      • Far Field
    • Discharged (Dead) Battery Charge Profile
    • Stand-by Times
  • Hookswitch Timing (Disconnect and Flash)
  • Call Progress Signals Generation (Call state and RFC 2833)
  • Acoustic Ringer Performance
  • DTMF and Call Set-up Processing
  • Caller-ID Reception and Display
  • Device Response Timing to User Inputs Performance
  • Lightning Immunity
    • Signal leads
    • Power leads
  • Electro-Static Discharge (ESD)
    • Air discharge
    • Direct contact discharge
    • In-direct contact discharge
  • AC Power Variations
    • Transient interruptions
    • Short term voltage sags
    • long term interruptions
  • Temperature and Humidity
    • Operating conditions
    • Storage conditions
  • Drop Testing
    • Packaged
    • Unpackaged
  • Vibration
  • Immunity Radiated Electric Field (E-field) Interference
  • Immunity Conducted Interference on Signal Leads
  • Immunity Conducted Interference on Power Leads
  • Measuring performance of:
    • Receive level of acoustic output
    • Transmit level of electrical output
    • Functionality during application of the interference
© Copyright 2017, AST Technology Labs. All Rights Reserved.
Website Design by Blue Tangerine Solutions
Top