Zoltes Voice, Fax and Data Modem Traffic Generator (VFD) is an end-to-end testing tool for PSTN enabled devices using generic call flows and media streaming features across analog and TDM telephony interfaces with Quality of Voice and Quality of Fax.

KEY FEATURES

• Multi-Test Agent control from the same controller interface
• Tones, Voice, Fax and Data Modem traffic mix on any channel
• Execution control
  • Test Automation and via TCL
  • Flexible dial plan support
  • Conditional If and Loop statements in Test Script
  • Rerun test if failed, stop after failure, continue after failure
• Test Statistics
  • Summary
  • Detailed
• Test Results
  • Thresholds, Error Codes per failure
  • List of error codes with summary description
• Ability to load the PCM recording files in Adobe Audition (CoolEdit) or similar analysis tool