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Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)
OL-20861-01
Chapter 1 An Overview of the Cisco Unified IP Phone
Understanding Security Features for Cisco Unified IP Phones
Ta b l e 1-8 Security Restrictions with Conference Calls
Initiator’s Phone
Security Level Feature Used Security Level of Participants Results of Action
Non-secure Conference Secure Non-secure conference bridge
Non-secure conference
Secure Conference At least one member is
non-secure.
Secure conference bridge
Non-secure conference
Secure Conference Secure. Secure conference bridge
Secure encrypted level conference
Non-secure MeetMe Minimum security level is
encrypted
Initiator receives message “Does not meet Security
Level, call rejected.”
Secure MeetMe Minimum security level is
non-secure
Only secure conference bridge available and used
Conference accepts all calls