The process for specifying the cipher specs that Blueworx Voice Response allows by default is described.
To perform secure SIP communications, two machines negotiate a cipher spec to use. A cipher spec is a combination of algorithms that are used in the underlying TLS connection that secure SIP uses. For more information, see CipherSpecs and CipherSuites.
The file $SYS_DIR/voip/cipherspecs.ini specifies the cipher specs that Blueworx Voice Response allows by default.
If you want to prevent Blueworx Voice Response using any of the default cipher specs, you can do so by prefixing each cipher spec in file $SYS_DIR/voip/cipherspecs.ini that you do not require with a hash character (#). Blueworx Voice Response will not make any TLS connections using those cipher specs.
To reinstate a cipher spec in file $SYS_DIR/voip/cipherspecs.ini, remove the hash character (#) prefix for that file.
You must restart Blueworx Voice Response for any changes to cipherspecs.ini to take effect.