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Cisco Bug: CSCuq17530 - 6921 with headsets double talk has bad Audio performance

Last Modified

Aug 05, 2015

Products (37)

  • Cisco IP Phone 8800 Series
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone 7945G
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified IP Phone 7962G
  • Cisco Unified SIP Phone 3905
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified IP Phone 6961
  • Cisco Unified IP Phone 6901
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Known Affected Releases

9.1(1) 9.2(1) 9.3(1) 9.4(1) 9.4(2)

Description (partial)

If the parties on the call are using 6921 phones with headsets and Talking at the same time, the Voice Quality degrades badly.

Issue found with 6921 and HW251N headsets.

79XX phones do not face the problem!
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