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Implementing Media Encryption for Secured Conferencing
Polycom®, Inc. 159
Recording Link Encryption
Recording Links are treated as regular participants, however the system flag
ALLOW_NON_ENCRYPT_RECORDING_LINK_IN_ENCRYPT_CONF must be set to YES if a
non-encrypted Recording Link is to be allowed to connect to an encrypted conference.
The following table summarizes the connection possibilities for a Recording Link that is to be connected to
a conference for each of the conference profile and Entry Queue encryption options.
Enabling Media Encryption for a Conference
Media encryption is enabled at three levels:
● MCU level - Setting the Encryption Flags
● Conference level - Enabling Encryption in the Profile
● Participant level - Enabling Encryption at the Participant Level
You must first set the system flags for the MCU before media encryption can be enabled for the conference
and participants.
Encrypt All Move succeeds, connected encrypted. Move fails, disconnected.
Encrypt When Possible Move succeeds,
connected
encrypted
Move succeeds,
connected
encrypted
Move succeeds,
connected
non-encrypted
Connected only if
endpoint was a
defined participant
in the source
conference.
Otherwise, move
fails.
* Flag = FORCE_ENCRYPTION_FOR_UNDEFINED_PARTICIPANT_IN_WHEN_AVAILABLE_MODE
Connections by Recording Link and Conference Encryption Settings
Conference
Profile Setting
Recording Link Connection Status according to flag:
ALLOW_NON_ENCRYPT_RECORDING_ LINK_IN_ENCRYPT_CONF
YES NO
Encrypt All Connected encrypted if possible,
otherwise connected non-encrypted.
Connected only if encrypted, otherwise
disconnected
No Encryption Connected non-encrypted Connected non-encrypted
Encrypt when possible Connected encrypted if possible,
otherwise connected non-encrypted.
Connected encrypted if possible,
otherwise connected non-encrypted.
Moving participants from entry queue to conference / between conferences depending on encryption settings
Destination
Conference
Encryption Setting
Current Participant Encryption Status
Encrypted Non-Encrypted
*Flag = NO *Flag = YES *Flag = NO *Flag = YES