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Cisco Bug: CSCuo34577 - 6921 phones fails to register after BULK reset of devices

Last Modified

May 11, 2018

Products (35)

  • Cisco IP Phone 8800 Series
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified IP Phone 7945G
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 7962G
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone 6941
  • Cisco Unified IP Phone 6961
  • Cisco Unified IP Phone 7911G
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Known Affected Releases

9.3(3)

Description (partial)

Symptom:
6921 phones will fail to register back to primary call manager after reset.

Conditions:
Bulk reset of devices from Date/Time group./ When number of devices requesting configuration file exceeds the TFTP serv count in service parameter.
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Bug Details Include

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  • Status
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