3CX BASIC PRACTICE QUESTIONS WITH ANSWERS
2025/2026 GRADED A+
Ring Groups have two Polling Strategies available that you can choose from. - T
Can a Multicast Paging Group page a remote STUN extension? - NO
All supported SIP trunk providers offer T.38 faxing as an option, so there is no need to
check with the provider before registering with them. - F
If the host running 3CX is also used as a DNS server, is it recommended to relocate
3CX to another host dedicated for 3CX? - Yes
Can the internal IP address of 3CX (the NIC IP Address) be changed without the need
to reinstall the PBX? - NO
When adding DID numbers, under the "DIDs" tab of the SIP Trunk, an inbound rule will
also be created automatically for each DID. - F
The standard protocol port for HTTPS is port TCP:80. - F
The provisioning template of a phone provides all the necessary information a phone
requires to connect to 3CX. - T
The Digital Receptionist destination is chosen based on the DTMF tone the PBX
receives from the caller. - T
Each extension can be configured to have a different Voicemail language. - T
When using a Generic VoIP Provider, 3CX Technical Support is available to
troubleshoot this trunk for all issues pertaining to this provider. - F
Have a look at the edition comparison page (https://www.3cx.com/ordering/pricing) and
evaluate the following statement: When installing using a Free Edition License Key, you
can't use your own SMTP Server. The 3CX SMTP Service will automatically be used. -
T
You have a SIP Trunk with multiple Numbers/DIDs. For each number, a new trunk
needs to be added in 3CX and the DID/MSN needs to be set in the main number field. -
F
The ability of "Standard" Digital Receptionists to connect callers directly to internal
extensions can be enabled or disabled per Digital Receptionist. - F
Does the firewall checker check if ports have been altered by a firewall / router when
data traverses it? - Yes
, Can you set the HTTP port to be TCP:5000 and the HTTPS port to be TCP:443? - Yes
When using the "Ring All" strategy in Ring Groups and the "Ring Time" is reached, the
call will be immediately forwarded to the "Destination if no answer". - T
The Voicemail PIN authentication cannot be disabled. - F
If you choose to use your own public domain name for a 3CX install, it is the task of the
person installing to provide a valid certificate during the installation wizard, to cover the
chosen domain name. - T
If you want to connect to 3CX remotely using the 3CX Apps, you only need to port
forward/NAT port 5090 (TCP/UDP) on the firewall in front of the 3CX PBX. - F
The OS Timezone is set automatically on Linux, based on your selection during the
Setup Wizard. On Windows it is not set automatically. - T
The Voicemail Transcription (speech-to-text) feature is available only on Enterprise
License Keys. - F
Emergency numbers are automatically configured by 3CX, so you dont need to
configure them manually - F
Welcome email can only be used to provision 3CX client for Windows and Mac - F
When creating inbound rules, the destination to which the incoming call is routed can be
an external number? - T
When connecting a phone to the network, the phone will be automatically provisioned
without administrator intervention. - F
If you choose to use your own public domain name for a 3CX installation, the task of the
person performing the installation When connecting a phone to the network, the phone
will be automatically provisioned without administrator intervention. is to provide a valid
certificate during the installation wizard to cover the chosen domain name - T
The 3CX client is a software application that allows you to make and receive calls - T
Read the provisioning guides for IP phones and answer if the following statement is true
or false. Supported DECT base stations can be provisioned via PnP - F
Can I set the HTTP port to TCP:5000 and the HTTPS port to be TCP: 443? - Yes
If firewall verification fails, you can contact 3CX support, instead of consulting the
Firewall Guides on the 3CX website - F
2025/2026 GRADED A+
Ring Groups have two Polling Strategies available that you can choose from. - T
Can a Multicast Paging Group page a remote STUN extension? - NO
All supported SIP trunk providers offer T.38 faxing as an option, so there is no need to
check with the provider before registering with them. - F
If the host running 3CX is also used as a DNS server, is it recommended to relocate
3CX to another host dedicated for 3CX? - Yes
Can the internal IP address of 3CX (the NIC IP Address) be changed without the need
to reinstall the PBX? - NO
When adding DID numbers, under the "DIDs" tab of the SIP Trunk, an inbound rule will
also be created automatically for each DID. - F
The standard protocol port for HTTPS is port TCP:80. - F
The provisioning template of a phone provides all the necessary information a phone
requires to connect to 3CX. - T
The Digital Receptionist destination is chosen based on the DTMF tone the PBX
receives from the caller. - T
Each extension can be configured to have a different Voicemail language. - T
When using a Generic VoIP Provider, 3CX Technical Support is available to
troubleshoot this trunk for all issues pertaining to this provider. - F
Have a look at the edition comparison page (https://www.3cx.com/ordering/pricing) and
evaluate the following statement: When installing using a Free Edition License Key, you
can't use your own SMTP Server. The 3CX SMTP Service will automatically be used. -
T
You have a SIP Trunk with multiple Numbers/DIDs. For each number, a new trunk
needs to be added in 3CX and the DID/MSN needs to be set in the main number field. -
F
The ability of "Standard" Digital Receptionists to connect callers directly to internal
extensions can be enabled or disabled per Digital Receptionist. - F
Does the firewall checker check if ports have been altered by a firewall / router when
data traverses it? - Yes
, Can you set the HTTP port to be TCP:5000 and the HTTPS port to be TCP:443? - Yes
When using the "Ring All" strategy in Ring Groups and the "Ring Time" is reached, the
call will be immediately forwarded to the "Destination if no answer". - T
The Voicemail PIN authentication cannot be disabled. - F
If you choose to use your own public domain name for a 3CX install, it is the task of the
person installing to provide a valid certificate during the installation wizard, to cover the
chosen domain name. - T
If you want to connect to 3CX remotely using the 3CX Apps, you only need to port
forward/NAT port 5090 (TCP/UDP) on the firewall in front of the 3CX PBX. - F
The OS Timezone is set automatically on Linux, based on your selection during the
Setup Wizard. On Windows it is not set automatically. - T
The Voicemail Transcription (speech-to-text) feature is available only on Enterprise
License Keys. - F
Emergency numbers are automatically configured by 3CX, so you dont need to
configure them manually - F
Welcome email can only be used to provision 3CX client for Windows and Mac - F
When creating inbound rules, the destination to which the incoming call is routed can be
an external number? - T
When connecting a phone to the network, the phone will be automatically provisioned
without administrator intervention. - F
If you choose to use your own public domain name for a 3CX installation, the task of the
person performing the installation When connecting a phone to the network, the phone
will be automatically provisioned without administrator intervention. is to provide a valid
certificate during the installation wizard to cover the chosen domain name - T
The 3CX client is a software application that allows you to make and receive calls - T
Read the provisioning guides for IP phones and answer if the following statement is true
or false. Supported DECT base stations can be provisioned via PnP - F
Can I set the HTTP port to TCP:5000 and the HTTPS port to be TCP: 443? - Yes
If firewall verification fails, you can contact 3CX support, instead of consulting the
Firewall Guides on the 3CX website - F
