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Cisco Bug: CSCus85518 - 88XX phone can't register if more than 5 lines in phone button template

Last Modified

Jul 17, 2018

Products (35)

  • Cisco IP Phone 8800 Series
  • Cisco Unified IP Phone 9951
  • Cisco IP Phone 8851
  • Cisco Unified IP Phone 7945G
  • Cisco Unified SIP Phone 3905
  • Cisco Unified IP Phone 7962G
  • Cisco IP Phone 7841
  • Cisco Unified IP Phone 6961
  • Cisco Unified IP Phone 7941G
  • Cisco Unified IP Phone 6941
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Known Affected Releases

10.2(1) 10.2(2) 10.3(1)

Description (partial)

Symptom:
8841 or other 88XX phone model that doesn't support a Key Expansion Module will show "Unprovisioned" or "Telephony Service Unavailable" and fail to register to Unified Communications Manager (UCM).

Conditions:
This issue only occurs if the Phone Button Template assigned to the device in UCM has more than 5 lines assigned to it.  The 8841 and 8811 phones only support a maximum of 5 lines and will reject the xml configuration file from UCM if more than 5 lines are present.

Related Community Discussions

Telephony service is unavailable - IP Phone model 8851
Hi Guys,   The site is having in the IP Phones randomly the error message "Telephony service is unavailable". I don´t have sure, but, my suspect is related the network error. Any have idea about this?   Thanks,    Wilson 
Latest activity: May 20, 2018
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Bug Details Include

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  • Status
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