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Cisco 7811 User Manual page 95

Ip phone cisco unified communications manager 10.0 (sip)
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Troubleshooting
Security Error Message
Cause
Your phone firmware has identified an internal error.
Solution
If the message persists, contact your system administrator.
Cisco IP Phone 7811, 7821, 7841, and 7861 User Guide for Cisco Unified Communications Manager 10.0 (SIP)
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