3CX - The Big Fat Flashcard Compendium Questions with
complete solution 2025/2026
1. When adding VoIP providers, you should
Answer: True
ensure that firewall verification has run
before configura- tion, without any
reported errors
Answer: False
2. 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 Fire- wall
Answer: False
3. Question: True or False: You can upload MP3
files Digital Receptionists to be used as
custom prompts
4. Question: True or False: When remote, the 3CX App Answer: True
only needs to have Tunnel (default
UDP/TCP:5090) and HTTPS (default TCP:5001)
ports forward- ed/NATed on your Firewall to
provision and operate correctly.
5. Question: True or False: The default Answer: True
Voicemail PIN length is 4 digits
6. Question: True or False: You can you provision
and False use remote extensions when using a
"Standard Edi- tion" license key.
7. Question: True or False: When the Digital Answer: False
Recep- tionist timeout is reached, the
prompt is always repeated.
8. Question: True or False: The 3CX Web Client cannot Answer: False
remote control a 3CX App.
,3CX - The Big Fat Flashcard Compendium Questions with
complete solution 2025/2026
9. Answer: False
,3CX - The Big Fat Flashcard Compendium Questions with
complete solution 2025/2026
Question: True or False: When provisioning BLF
keys on an IP Phone, the default action is
always to Blind Transfer and cannot be
changed.
10. Question: True or False: The QR code can be found Answer: True
in the 3CX Web Client
11. Question: True or False: The Voicemail a desktop
Transcrip- tion (speech-to-text) feature is IP phone.
available only on Pro and Enterprise License
Keys. 16. The firewall
checker
12. Question: True or False: Supported IP check if
phones are still covered when these have ports have
not been provisioned via 3CX : run custom been al-
templates and/or use outdat- ed firmware tered by a
versions? firewall /
router when
13. Question: You would like to test how two data
3CX PBX installations can be bridged traverses it?
together. One license is a "3CX Standard
Edition" and the other a "3CX Enterprise
Edition". These editions be bridged.
14. 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.
15. Question: True or False: A 3CX App can
use the same 3CX extension number as
, 3CX - The Big Fat Flashcard Compendium Questions with
complete solution 2025/2026
Answer: True
False
True
Answer: True
#Deprecated. This was the case but is no longer. Currently 443 and
5001 are used.
Answer: True
True
complete solution 2025/2026
1. When adding VoIP providers, you should
Answer: True
ensure that firewall verification has run
before configura- tion, without any
reported errors
Answer: False
2. 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 Fire- wall
Answer: False
3. Question: True or False: You can upload MP3
files Digital Receptionists to be used as
custom prompts
4. Question: True or False: When remote, the 3CX App Answer: True
only needs to have Tunnel (default
UDP/TCP:5090) and HTTPS (default TCP:5001)
ports forward- ed/NATed on your Firewall to
provision and operate correctly.
5. Question: True or False: The default Answer: True
Voicemail PIN length is 4 digits
6. Question: True or False: You can you provision
and False use remote extensions when using a
"Standard Edi- tion" license key.
7. Question: True or False: When the Digital Answer: False
Recep- tionist timeout is reached, the
prompt is always repeated.
8. Question: True or False: The 3CX Web Client cannot Answer: False
remote control a 3CX App.
,3CX - The Big Fat Flashcard Compendium Questions with
complete solution 2025/2026
9. Answer: False
,3CX - The Big Fat Flashcard Compendium Questions with
complete solution 2025/2026
Question: True or False: When provisioning BLF
keys on an IP Phone, the default action is
always to Blind Transfer and cannot be
changed.
10. Question: True or False: The QR code can be found Answer: True
in the 3CX Web Client
11. Question: True or False: The Voicemail a desktop
Transcrip- tion (speech-to-text) feature is IP phone.
available only on Pro and Enterprise License
Keys. 16. The firewall
checker
12. Question: True or False: Supported IP check if
phones are still covered when these have ports have
not been provisioned via 3CX : run custom been al-
templates and/or use outdat- ed firmware tered by a
versions? firewall /
router when
13. Question: You would like to test how two data
3CX PBX installations can be bridged traverses it?
together. One license is a "3CX Standard
Edition" and the other a "3CX Enterprise
Edition". These editions be bridged.
14. 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.
15. Question: True or False: A 3CX App can
use the same 3CX extension number as
, 3CX - The Big Fat Flashcard Compendium Questions with
complete solution 2025/2026
Answer: True
False
True
Answer: True
#Deprecated. This was the case but is no longer. Currently 443 and
5001 are used.
Answer: True
True
