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Ultra Secure Mode
Polycom®, Inc. 838
Keep Alive Frequency
The Keep Alive frequency is set by the SIP Server using the Via Header keep and Flow Timer fields of the
SIP Header.
If the Collaboration Server is functioning as the server, the Keep Alive frequency is set according to the hard
coded values listed in the following table.
User and Connection Management
Chairperson and Auditor user Authorization Levels are not supported in Ultra Secure Mode.
In Ultra Secure Mode (ULTRA_SECURE_MODE=YES), Users can be automatically disabled or locked out
by the system when they do not log into the Collaboration Server application for a predefined period or if
their login session does not meet Enhanced Security requirements. Users can be manually disabled by the
administrator.
An administrator can enable a User who was disabled automatically by the system (in the Ultra Secure
Mode) or manually by the administrator.
Additional security measures can be implemented in the Collaboration Server by setting the appropriate
system flags. These measures control the system users, the user connections to the MCU and the user
login process.
Managing system users includes:
● User types that are not supported when the Ultra Secure Mode is enabled.
● Disabling and enabling system Users.
● Renaming Users.
● Disabling inactive users.
Managing the user login process includes:
● Implementing Strong Passwords.
● Implementing password re-use / history rules.
● Defining password aging rules.
● Defining password change frequency.
● Forcing password change.
Keep Alive - Frequency
Field Seconds
SIP_TCP_KEEP_ALIVE_DISABLE None
SIP_TCP_KEEP_ALIVE_MS 300
SIP_TCP_KEEP_ALIVE_5626 60
SIP_TCP_KEEP_ALIVE_6223
SIP_TCP_KEEP_ALIVE_PLCM