server.callLog.useStrongestCipherSuite
                                                    Specifies the encryption ciphers on the TLS port. Requires use of only the strongest TLS ciphers for communication with the call log server.
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                                                                     Value  | 
                                                                
                                                                     Integer. Must be 0 (accept weak ciphers), 1 (accept strong ciphers only), or 2 (accept cipher suites based on the DH key exchange method with GCM mode only). DEFAULT: 0 (accept weak ciphers)  | 
                                                            
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                                                                     How to set  | 
                                                                
                                                                     If using the Management Station, set on the Speech Server service. If not using Management Station, set in an NSS configuration file (user-NSSxx.txt).  | 
                                                            
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                                                                     Usage  | 
                                                                
                                                                     Seldom changed. Available when your MRCPv2 clients communicate with the call log server over TLS (Transport Layer Security) for enhanced security.  | 
                                                            
See Configuring network security.
When you change the value, the new value only applies after you restart Speech Server.