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Cisco Bug: CSCuo22551 - Lync/MOC RCC client requires re-login after CUP SIP Proxy restart

Last Modified

Feb 13, 2018

Products (2)

  • Cisco Unified Communications Manager IM & Presence Service
  • Cisco Unified Presence Version 8.6

Known Affected Releases


Description (partial)

Lync Client invokes a new call via Remote Call Control.

The request gets an error indicating the User Dialed is not in service. Please check the number and try again.

After a Lync client signs on to Remote Call Control phone services via CUP and starts to control their Device/Line, if the CUP SIP Proxy Service is restarted for any reason, any future Remote Call Control requests initiated by the client will receive a "404 Not Found" SIP error. This response leads to the Lync client displaying "the destination user is not in service. Please check the number and try again"
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