Cisco 7975G - Page 40

Results of actionCall security levelInitiator phone security
level
Call barged and identified as authenticated callEncrypted callSecure (authenticated)
Call barged and identified as nonsecure callAuthenticated callNonsecure
The following table provides information about changes to conference security levels, which depend on the
initiator phone security level, the security levels of participants, and the availability of secure conference
bridges.
Table 6: Security Restrictions with Conference Calls
Results of actionSecurity level of
participants
Feature usedInitiator phone
security level
Nonsecure conference bridge
Nonsecure conference
Encrypted or authenticatedConferenceNonsecure
Secure conference bridge
Nonsecure conference
At least one member is
nonsecure.
ConferenceSecure (encrypted
or authenticated)
Secure conference bridge
Secure encrypted level
conference
All participants are
encrypted
ConferenceSecure (encrypted)
Secure conference bridge
Secure authenticated level
conference
All participants are
encrypted or authenticated.
ConferenceSecure
(authenticated)
Only secure conference bridge
is available and used
Nonsecure conference
Encrypted or authenticatedConferenceNonsecure
Only nonsecure conference
bridge is available and used
Nonsecure conference
Encrypted or authenticatedConferenceSecure (encrypted
or authenticated)
Conference remains secure
When one participant tries to
Hold the call with Music on
Hold (MOH), the MOH does
not play.
Secure or encryptedConferenceSecure (encrypted
or authenticated)
Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G Administration Guide for Cisco Unified
Communications Manager 9.0 (SCCP and SIP)
20
Cisco Unified IP Phone
Authenticated, Encrypted, and Protected Phone Calls