3CX Academy, Advanced Certification
Exam Questions and Answers 100%
Solved
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
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,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
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, 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 Reformatting" rule on the
Trunk with "Source Pattern" 44(..)(..)(.*) and "Replace Pattern" +44\3. -
✔✔True
When selecting the option "I need a 3CX FQDN" an internal DNS is not
mandatory - ✔✔True
The order of "Inbound Rules" is not important when you have DID and CID
"Inbound Rules", CIDs always have higher priority. - ✔✔False
You have a Master Bridge with 3-digit extensions 1xxx and a Slave Bridge
with 4-digit extensions 2xxx. In the "Outbound Rules" you use to rote calls
across the bridge, using a prefix is mandatory. - ✔✔False
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Exam Questions and Answers 100%
Solved
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
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,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
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, 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 Reformatting" rule on the
Trunk with "Source Pattern" 44(..)(..)(.*) and "Replace Pattern" +44\3. -
✔✔True
When selecting the option "I need a 3CX FQDN" an internal DNS is not
mandatory - ✔✔True
The order of "Inbound Rules" is not important when you have DID and CID
"Inbound Rules", CIDs always have higher priority. - ✔✔False
You have a Master Bridge with 3-digit extensions 1xxx and a Slave Bridge
with 4-digit extensions 2xxx. In the "Outbound Rules" you use to rote calls
across the bridge, using a prefix is mandatory. - ✔✔False
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
