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In the criteria of the "Outbound Rules", "Calls from Extension(s)" having comma separated values will allow multiple extension ranges to be defined - True The Virtual Extension of the slave must match the master side virtual extension number - True For extensions that are registered over multiple site-to-site VPNs, by default 3CX delivers the audio between phones if they are on different subnets. - False On outbound calls to external numbers, 3CX will process "Outbound Rules" in a "Best Matching" way, depending on how many of the criteria match. - False Wireshark can - without any additional Plugins Decode all Codecs including G711A, G711U, GSM, G729, G726 - False STUN extensions can be configured to connect to the tunnel port of 3CX instead of the SIP port for more security. - False The log files of 3CX are never cleaned even when you restart the 3CX Services - False Once Secure SIP has been configured in 3CX, Secure SIP certificates will need to be deployed manually in phones and softphones OS so that they can communicate. - False Remote extensions may be provisioned using the HTTP or HTTPS URLs - False The default Voicemail PIN of an extension consist of 4 random alphanumerical characters. - False