3CX Academy Advanced Certification | 62 Questions with 100% Correct Answers | Verified | Latest Update

3CX Academy Advanced Certification

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

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. - ✔✔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. - ✔✔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 - ✔✔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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