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3CX Academy Advanced Certification 62 Questions with Answers Update
3CX Academy Advanced Certification
In the criteria of the "Outbound Rules", "Calls from Extension(s)" having comma sepa
values will allow multiple extension ranges to be defined - âœâ€Ã¢Å“â€True
The Virtual Extension of the slave must match the master side virtual extension number -
âœâ€Ã¢Å“â€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. - âœâ€Ã¢Å“â€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. - âœâ€Ã¢Å“â€False
Wireshark can - without any additional Plugins Decode all Codecs including G711A, G711U,
GSM, G729, G726 - âœâ€Ã¢Å“â€False
STUN extensions can be configured to connect to the tunnel port of 3CX instead of the SIP port
for more security. - âœâ€Ã¢Å“â€False
The log files of 3CX are never cleaned even when you restart the 3CX Services - âœâ€Ã¢Å“â€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. - âœâ€Ã¢Å“â€False
Remote extensions may be provisioned using the HTTP or HTTPS URLs - âœâ€Ã¢Å“â€False
The default Voicemail PIN of an extension consist of 4 random alphanumerical characters. -
âœâ€Ã¢Å“â€False
Your 3CX has only one SIP Trunk and receives a call from number 8135791691. If you have a
"Inbound CID Reformatting" rule on the Trunk with "Source Pattern" 813(...)(.*) and "Replace
Pattern" \1\2, the extension that receives the call will see "5791691" as the caller ID on its
display. - âœâ€Ã¢Å“â€True
When 3CX has been installed without a FQDN from 3CX and in split DNS mode, the DNS
server must not be installed on the same machine as the phone system. - âœâ€Ã¢Å“â€True
Your Local IP Phone loses the registration to 3CX and you want do troubleshoot the issue. You
should start a Wireshark Capture on the 3CX Server, reboot the phone, and then apply the Filter
sip.Cseq.Method==REGISTER in order to see if registrations are reaching 3CX - âœâ€Ã¢Å“â€True
Your 3CX has only one SIP Trunk and receives a call from number 422033272020 and you want
it to be presented on the extension display as +44272020. You can do this with a "Inbound CID
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