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Implementing Media Encryption for Secured Conferencing
Polycom®, Inc. 157
Direct Connection to the Conference
The following table summarizes the connection status of participants, based on the encryption settings in
the conference Profile, the Defined Participant’s encryption settings or the System Flag setting for undefined
participants and the connecting endpoint’s Media Encryption capabilities.
Connection of Participants to the Conference based on Encryption Settings
Conference
Encryption
Setting
Defined Participant Undefined Participant
Encryption
Setting
Connection status
Connection Status
*Flag = No
Connection Status
*Flag = YES
No Encryption Auto Connected,
non-encrypted
Connected
non-encrypted
(Encryption is not
declared by the
Collaboration
Server, therefore the
endpoint does not
use encryption)
Connected
non-encrypted
(Encryption is not
declared by the
Collaboration
Server, therefore the
endpoint does not
use encryption)
No Connected,
non-encrypted
Yes Connected only if encrypted.
Non-encrypted endpoints are
disconnected as encryption is
forced for the participant.
Encrypt All Auto Connected, encrypted.
Non-encrypted endpoints are
disconnected
Connect only if
encrypted.
Non-encrypted
endpoints are
disconnected
Connect only if
encrypted.
Non-encrypted
endpoints are
disconnected
No Disconnected (cannot be
added to the conference)
Yes Connected, encrypted
Encrypt When
Possible
Auto All defined participants except
dial-out SIP participants:
• Connect encrypted -
Endpoints with encryption
capabilities.
• Connect non-encrypted -
endpoints without
encryption capabilities.
Defined dial-out SIP
participant:
• Connect only if encrypted.
• Non-encrypted endpoints
are disconnected.
Connect encrypted -
Endpoints with
encryption
capabilities.
Connect
non-encrypted -
endpoints without
encryption
capabilities
Connect only if
encrypted.
Non-encrypted
endpoints are
disconnected.
No Connected, non-encrypted
Yes Connected, encrypted
* Flag = FORCE_ENCRYPTION_FOR_UNDEFINED_PARTICIPANT_IN_WHEN_AVAILABLE_MODE