SAP Knowledge Base Article - Preview

2038243 - SAP CC - Headset works intermittently - logs indicate Device Null messages


  • Occasionally, agents using a USB headset (check the Compatibility List of certified hardware) will notice calls going mute.
  • When checking the terminal logs, there are traces like: " [terminal.htm] [INF] - Audio device (0): id=[30000], name=[NULL device], ver=[?], prev saved name=[HeadsetEarphone  (Jabra BIZ"  240]) " for example.

    Image/Data is from SAP internal systems, sample data, or demo systems.  Any resemblance to real data is purely coincidental.



  • SAP Contact Center 7.0 and up
  • SAP Contact Center CDT "Communication Desktop Terminal"


SAP Contact Center, on-premise edition 7.0


Mute, device, CallCenter, No audio, USB, NullDevice, receiveAudio , KBA , CRM-CCI , Contact Center Infrastructure , CRM-BCM , Please use CRM-CCI , Problem

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