3CX BASIC QUESTIONS WITH ANSWERS 2025/2026
GRADED A+
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
Voicemail is enabled by default on all new extensions. - T
The Voicemail of an extension cannot be disabled - F
When provisioning BLF keys on an IP phone, the default action is always blind transfer
and cannot be altered. - F
When a problem arises on a supported IP phone, provisioned by 3CX running the
supported firmware, can support for standard device functions be provided by 3cx? -
Yes
If you choose to use a 3CX FQDN, does the configuration wizard generate a trusted
SSL certificate for you during the installation? - Yes
You can provision more than one IP phone to an extension, even if the manufacturer
and/or models are different? - Yes
IP phones marked in red on the PHONES page of the 3CX Management Console
indicate an outdated firmware version. Are those devices still covered by 3CX support
for assistance when a problem occurs with these devices? - NO
GRADED A+
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
Voicemail is enabled by default on all new extensions. - T
The Voicemail of an extension cannot be disabled - F
When provisioning BLF keys on an IP phone, the default action is always blind transfer
and cannot be altered. - F
When a problem arises on a supported IP phone, provisioned by 3CX running the
supported firmware, can support for standard device functions be provided by 3cx? -
Yes
If you choose to use a 3CX FQDN, does the configuration wizard generate a trusted
SSL certificate for you during the installation? - Yes
You can provision more than one IP phone to an extension, even if the manufacturer
and/or models are different? - Yes
IP phones marked in red on the PHONES page of the 3CX Management Console
indicate an outdated firmware version. Are those devices still covered by 3CX support
for assistance when a problem occurs with these devices? - NO
