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Cisco Bug: CSCvs58194 - 88X1 phones with SW version 12.6 , do not work with Webex Calling(Spark Calling)

Last Modified

Jan 23, 2020

Products (13)

  • Cisco IP Phone 8800 Series
  • Cisco IP Phone 8865
  • Cisco IP Conference Phone 7832
  • Cisco IP Phone 8851
  • Cisco IP Phone 7841
  • Cisco IP Phone 7821
  • Cisco IP Phone 8811
  • Cisco IP Phone 8845
  • Cisco IP Phone 7861
  • Cisco IP Phone 8861
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Known Affected Releases


Description (partial)

1. It gets stuck at "Phone in registering". And gives a message "Invalid Port range 36000-59000, set to default value 16384-32766".

2. The back of the phone may have a sticker "SW version 12.6 or later".

Newer phone models having SW version = 12.6
HW version requires 12.6
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Related Community Discussions
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