Preview Tool

Cisco Bug: CSCsz79957 - 7921 takes long time to respond to ping or incoming call

Last Modified

Feb 16, 2010

Products (1)

  • Cisco Unified IP Phone 7900 Series

Known Affected Releases


Description (partial)


1. When phone goes to sleep mode, ping response can take as much as 10 seconds. 

2. If I call to 7921 in sleep mode, it may take more than 5 seconds for the phone to show incoming call.

3. If I use Phone Designer application to review/set ring tone/wallpaper on a phone in sleep mode, it may take 5-10 seconds for it to play/show. When phone is active, it takes less than 1 second.


Phone in sleep mode: phone is running on battery and screen goes dark.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.