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Cisco Bug: CSCum10683 - IP phones not logging missed, placed, or received calls

Last Modified

Sep 30, 2020

Products (36)

  • Cisco Unified IP Phone 7900 Series
  • Cisco Unified IP Phone 7962G
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified IP Phone 7945G
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 6961
  • Cisco Unified IP Phone 7911G
  • Cisco Unified IP Phone 7961G-GE
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Known Affected Releases


Description (partial)

Cisco IP phones do not log or update their missed, placed, and received call history.

Occurs when the phone cannot download a TFTP configuration file.  This is seen when the phone does not receive an option 150 IP address or option 66 from a DHCP server or the phone does not have alternate TFTP enabled and set to a valid TFTP IP address.

If an IP phone successfully downloads a TFTP configuration file and later loses connectivity to the TFTP server the phone will log missed, placed, and received calls.  The phone continues logging even after a reset because of the cached configuration file.  Once the phone is power cycled call logging will stop, until the phone is able to download it's TFTP configuration file again.

Related Community Discussions

Cisco IP Phone 8945 SCCP Call History Issue
Hello Group Members,   getting below issue on Cisco 8945 SCCP Phone   issue is that when looking into call log it is showing 150 enteries in side the dialed, received and missed call section.   when getting new call it is not updating in call log section of ip phone..   how an fix this issue or do have any way to auto delete call logs from Phone? running latest version of firmware on 8945 sccp phone..  
Latest activity: Jul 09, 2018
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