Cisco 7975G Software Manual page 40

Authenticated, Encrypted, and Protected Phone Calls
Initiator phone security
level
Secure (authenticated)
Nonsecure
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
Initiator phone
security level
Nonsecure
Secure (encrypted
or authenticated)
Secure (encrypted)
Secure
(authenticated)
Nonsecure
Secure (encrypted
or authenticated)
Secure (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
Call security level
Encrypted call
Authenticated call
Feature used Security level of
participants
Conference Encrypted or authenticated
Conference At least one member is
nonsecure.
Conference All participants are
encrypted
Conference All participants are
encrypted or authenticated.
Conference Encrypted or authenticated
Conference Encrypted or authenticated
Conference Secure or encrypted
Results of action
Call barged and identified as authenticated call
Call barged and identified as nonsecure call
Results of action
Nonsecure conference bridge
Nonsecure conference
Secure conference bridge
Nonsecure conference
Secure conference bridge
Secure encrypted level
conference
Secure conference bridge
Secure authenticated level
conference
Only secure conference bridge
is available and used
Nonsecure conference
Only nonsecure conference
bridge is available and used
Nonsecure conference
Conference remains secure
When one participant tries to
Hold the call with Music on
Hold (MOH), the MOH does
not play.
Cisco Unified IP Phone