3CX ACADEMY BASIC CERTIFICATION 2026
EXAMINERS QUESTIONS AND ANSWERS SURE A+
✔✔(Y/N) If you intend of having local extensions, can the local LAN IP for 3CX and your
IP phones range be 192.168.35.0/20? - ✔✔YES
✔✔(T/F) The provisioning templates of a phone provide all the necessary information a
phone requires to connect to 3CX. - ✔✔TRUE
✔✔(T/F) A "SIP Fork" is a term used when a call is forwarded to another extension
when the all is not answered within a certain time frame? - ✔✔FALSE; it is when a
single call rings at multiple endpoints.
✔✔(T/F) 3CX clients send requests for CTI to the PBX, which will then relay the request
to the IP phone. - ✔✔TBD
✔✔(T/F) PSTN gateways cannot be provisioned with 3CX, the must be manually
configured. - ✔✔TRUE
https://www.3cx.com/3cxacademy/videos/basic/configuring-pstn-gateways/
, ✔✔(T/F) Port preservation in NAT devices ensures that the source port of the transport
will not be changed once the IP os translated from private to public. - ✔✔TBD
✔✔(T/F) In order to be able to download updates on 3CX, access to http://3cx.com
must be allowed outbound and inbound on the firewall in front of 3CX. - ✔✔TBD
✔✔(Y/N) When you use your own FQDN and certificates during the installation process,
is it mandatory to have an internal/local DNS server? - ✔✔TBD
✔✔(T/F) Presence information for 3CX clients is also tunneled via the UDP/TCP:5090
port. - ✔✔TBD
✔✔(T/F) Before adding a PSTN gateway the firewall checker must be run and must
pass all tests. - ✔✔TBD
✔✔(T/F) A "SIP Fork" is a term used when more than one device/terminal registers to
the same extension number. - ✔✔TBD
✔✔(Y/N) Can you set the HTTP port to be TCP:5000 and the HTTPS port to be
TCP:443? - ✔✔TBD
✔✔(T/F) Port TCP/UDP:5090 needs to be forwarded inbound on the firewall in front of
3CX, for registering deskphones behind the SBC. - ✔✔TBD
✔✔(T/F) The 3CX client can run on Apple iPads? - ✔✔TRUE
✔✔(Y/N) Can you install 3CX on Windows 10x86? - ✔✔TBD
✔✔(T/F) To configure individual outbound caller IDs for extensions you do so under:
SIP Trunk -> "Your Trunk" -> Caller ID -> Configure Outbound Caller ID. - ✔✔TBD
✔✔(Y/N) If we do not intend on having external entities (remote extensions, VoIP
providers, etc), does the 3CX server require internet access? - ✔✔TBD
✔✔(T/F) Once a 3CX client is provisioned, the user can use the 3CX Client to request a
new copy of the welcome email. - ✔✔TBD
✔✔(T/F) Welcome Emails can be sent out by using the "Send Welcome Email" button in
the "Phones" node of the Management console. - ✔✔TBD
✔✔ Google Chrome - ✔✔Compatible with 3CX
EXAMINERS QUESTIONS AND ANSWERS SURE A+
✔✔(Y/N) If you intend of having local extensions, can the local LAN IP for 3CX and your
IP phones range be 192.168.35.0/20? - ✔✔YES
✔✔(T/F) The provisioning templates of a phone provide all the necessary information a
phone requires to connect to 3CX. - ✔✔TRUE
✔✔(T/F) A "SIP Fork" is a term used when a call is forwarded to another extension
when the all is not answered within a certain time frame? - ✔✔FALSE; it is when a
single call rings at multiple endpoints.
✔✔(T/F) 3CX clients send requests for CTI to the PBX, which will then relay the request
to the IP phone. - ✔✔TBD
✔✔(T/F) PSTN gateways cannot be provisioned with 3CX, the must be manually
configured. - ✔✔TRUE
https://www.3cx.com/3cxacademy/videos/basic/configuring-pstn-gateways/
, ✔✔(T/F) Port preservation in NAT devices ensures that the source port of the transport
will not be changed once the IP os translated from private to public. - ✔✔TBD
✔✔(T/F) In order to be able to download updates on 3CX, access to http://3cx.com
must be allowed outbound and inbound on the firewall in front of 3CX. - ✔✔TBD
✔✔(Y/N) When you use your own FQDN and certificates during the installation process,
is it mandatory to have an internal/local DNS server? - ✔✔TBD
✔✔(T/F) Presence information for 3CX clients is also tunneled via the UDP/TCP:5090
port. - ✔✔TBD
✔✔(T/F) Before adding a PSTN gateway the firewall checker must be run and must
pass all tests. - ✔✔TBD
✔✔(T/F) A "SIP Fork" is a term used when more than one device/terminal registers to
the same extension number. - ✔✔TBD
✔✔(Y/N) Can you set the HTTP port to be TCP:5000 and the HTTPS port to be
TCP:443? - ✔✔TBD
✔✔(T/F) Port TCP/UDP:5090 needs to be forwarded inbound on the firewall in front of
3CX, for registering deskphones behind the SBC. - ✔✔TBD
✔✔(T/F) The 3CX client can run on Apple iPads? - ✔✔TRUE
✔✔(Y/N) Can you install 3CX on Windows 10x86? - ✔✔TBD
✔✔(T/F) To configure individual outbound caller IDs for extensions you do so under:
SIP Trunk -> "Your Trunk" -> Caller ID -> Configure Outbound Caller ID. - ✔✔TBD
✔✔(Y/N) If we do not intend on having external entities (remote extensions, VoIP
providers, etc), does the 3CX server require internet access? - ✔✔TBD
✔✔(T/F) Once a 3CX client is provisioned, the user can use the 3CX Client to request a
new copy of the welcome email. - ✔✔TBD
✔✔(T/F) Welcome Emails can be sent out by using the "Send Welcome Email" button in
the "Phones" node of the Management console. - ✔✔TBD
✔✔ Google Chrome - ✔✔Compatible with 3CX
