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Cisco Bug: CSCuq34356 - 8831 voice sounds fuzzy and worse than 7937

Last Modified

Mar 03, 2018

Products (35)

  • Cisco IP Phone 8800 Series
  • Cisco Unified IP Phone 7962G
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 7945G
  • Cisco Unified IP Phone 6941
  • Cisco Unified IP Phone 6961
  • Cisco Unified IP Phone 7941G
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Known Affected Releases


Description (partial)

When through 8831's MIC, it sounds like the user is far from the phone.
The MOS value of the call is perfect and the sound is loud and clear. It's just not as natural as other phones like 7937.

A simple call from 8831(user A) to another phone(7962 for example, user B) registered on the same CM(not through WAN).

Related Community Discussions

Cisco Unified IP Conference Phone 8831 (Firmware version 9.3) の音声品質が悪い
2015年10月1日(初版) 2015年10月1日(アップデート) TAC SR Collection 主な問題 | Cisco Unified IP Conference Phone 8831  | を使用した時、 音声の音量が小さかったり、片通話が発生したり、または、相手の声にノイズが入ったりします。 原因 原因を特定するには、ログ調査が必要ですが、ファームウェアバーション10.3.1より古いものを使用されている場合は、下記の不具合に該当する可能性があります。 | CSCuq79452 - 8831 one way audio issue triggered by comfort noise packets <key>CSCuq34356</key> - 8831 voice sounds fuzzy and worse than 7937 CSCup85119 - Audio Quality on Cisco 8831 is lower on base station CSCuq86863 - 8831 in linked mode has lower in-call volume on secondary/slave ...
Latest activity: Sep 30, 2015
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