Specify whether PFS (perfect forward secrecy) is enabled for the SSL/TLS secured connection.
   Note: To disable this function, uncheck the box.
- SNMP ID:
 - 2.33.11.1.14
 - Console path:
 - Setup > Voice-Call-Manager > SIP-Server > TLS-Server
 - Possible values:
 - Yes
 
- Default:
 - Yes