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Cisco Bug: CSCur53088 - 8831 Wireless Microphone Region Lock - Brazil (region 5)

Last Modified

Mar 24, 2015

Products (35)

  • Cisco IP Phone 8800 Series
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified IP Phone 7962G
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified IP Phone 7945G
  • Cisco Unified IP Phone 6941
  • Cisco Unified IP Phone 6961
  • Cisco Unified IP Phone 7961G-GE
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Known Affected Releases


Description (partial)

The wireless microphones of the 8831 will only operating on certain wireless frequencies.  The wireless microphone region setting in Cisco Unified Communications Manager (CUCM) has no effect on which frequencies the phone uses.  The phone will ignore the wireless microphone region setting.

Any 8831 phone running a firmware version that contains this fix.  This is informational and the wireless frequencies are purposefully locked to only allow the use of wireless frequencies which are allowed in that region.
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