3CX - The Big List Exam Review |
Questions, Answers & Explanations |
2026/2027
Question: True or False: Configuring a remote extension in STUN mode requires
you to only port forward/NAT the SIP Port (Default 5060 UDP/TCP) on your
Firewall - correct answer-Answer: False
Question: True or False: You can upload MP3 files Digital Receptionists to be used
as custom prompts - correct answer-Answer: False
Question: True or False: When remote, the 3CX App only needs to have Tunnel
(default UDP/TCP:5090) and HTTPS (default TCP:5001) ports forwarded/NATed on
your Firewall to provision and operate correctly. - correct answer-Answer: True
Question: True or False: The default Voicemail PIN length is 4 digits - correct
answer-Answer: True
Question: Can you provision and use remote extensions when using a "Standard
Edition" license key? - correct answer-Answer: No
Question: True or False: When the Digital Receptionist timeout is reached, the
prompt is always repeated. - correct answer-Answer: False
Question: True or False: The 3CX Web Client cannot remote control a 3CX App. -
correct answer-Answer: False
Question: True or False: When provisioning BLF keys on an IP Phone, the default
action is always to Blind Transfer and cannot be changed. - correct answer-
Answer: False
, Question: True or False: The QR code can be found in the 3CX Web Client - correct
answer-Answer: True
Question: True or False: The Voicemail Transcription (speech-to-text) feature is
available only on Pro and Enterprise License Keys. - correct answer-Answer: True
Question: Are supported IP phones still covered when these have not been
provisioned via 3CX, run custom templates and/or use outdated firmware
versions? - correct answer-Answer: No
Question: You would like to test how two 3CX PBX installations can be bridged
together. One license is a "3CX Standard Edition" and the other a "3CX Enterprise
Edition". Can these editions be bridged? - correct answer-Answer: Yes
Question: True or False: In order to be able to run the 3CX Web Configuration
Wizard remotely, you must have HTTP port TCP:5015 port forwarded on the
Firewall. - correct answer-Answer: True
Question: True or False: A 3CX App can use the same 3CX extension number as a
desktop IP phone. - correct answer-Answer: True
Question: Does the firewall checker check if ports have been altered by a firewall
/ router when data traverses it? - correct answer-Answer: Yes
Question: Can 3CX be installed, activated and operated without internet access? -
correct answer-Answer: No
Question: True or False: To upload an audio file to a Digital Receptionist, it must
be in the following format: WAV, PCM, 8 kHz, 16 bit, mono - correct answer-
Answer: True
Question: True or False: The QR code can only be found in the 3CX Web Client and
in the Welcome Email. - correct answer-Answer: False
Question: True or False: Provisioning is a term used, amongst other things, when
IP phones load a predefined configuration file - correct answer-Answer: True
Question: True or False: Configuring inbound rules for DIDs allows you to define
different routing destinations, based on the time of day - correct answer-Answer:
True
Questions, Answers & Explanations |
2026/2027
Question: True or False: Configuring a remote extension in STUN mode requires
you to only port forward/NAT the SIP Port (Default 5060 UDP/TCP) on your
Firewall - correct answer-Answer: False
Question: True or False: You can upload MP3 files Digital Receptionists to be used
as custom prompts - correct answer-Answer: False
Question: True or False: When remote, the 3CX App only needs to have Tunnel
(default UDP/TCP:5090) and HTTPS (default TCP:5001) ports forwarded/NATed on
your Firewall to provision and operate correctly. - correct answer-Answer: True
Question: True or False: The default Voicemail PIN length is 4 digits - correct
answer-Answer: True
Question: Can you provision and use remote extensions when using a "Standard
Edition" license key? - correct answer-Answer: No
Question: True or False: When the Digital Receptionist timeout is reached, the
prompt is always repeated. - correct answer-Answer: False
Question: True or False: The 3CX Web Client cannot remote control a 3CX App. -
correct answer-Answer: False
Question: True or False: When provisioning BLF keys on an IP Phone, the default
action is always to Blind Transfer and cannot be changed. - correct answer-
Answer: False
, Question: True or False: The QR code can be found in the 3CX Web Client - correct
answer-Answer: True
Question: True or False: The Voicemail Transcription (speech-to-text) feature is
available only on Pro and Enterprise License Keys. - correct answer-Answer: True
Question: Are supported IP phones still covered when these have not been
provisioned via 3CX, run custom templates and/or use outdated firmware
versions? - correct answer-Answer: No
Question: You would like to test how two 3CX PBX installations can be bridged
together. One license is a "3CX Standard Edition" and the other a "3CX Enterprise
Edition". Can these editions be bridged? - correct answer-Answer: Yes
Question: True or False: In order to be able to run the 3CX Web Configuration
Wizard remotely, you must have HTTP port TCP:5015 port forwarded on the
Firewall. - correct answer-Answer: True
Question: True or False: A 3CX App can use the same 3CX extension number as a
desktop IP phone. - correct answer-Answer: True
Question: Does the firewall checker check if ports have been altered by a firewall
/ router when data traverses it? - correct answer-Answer: Yes
Question: Can 3CX be installed, activated and operated without internet access? -
correct answer-Answer: No
Question: True or False: To upload an audio file to a Digital Receptionist, it must
be in the following format: WAV, PCM, 8 kHz, 16 bit, mono - correct answer-
Answer: True
Question: True or False: The QR code can only be found in the 3CX Web Client and
in the Welcome Email. - correct answer-Answer: False
Question: True or False: Provisioning is a term used, amongst other things, when
IP phones load a predefined configuration file - correct answer-Answer: True
Question: True or False: Configuring inbound rules for DIDs allows you to define
different routing destinations, based on the time of day - correct answer-Answer:
True
