3CX Basic Certification Questions and
Complete Detailed Answers
What operating systems can 3CX be installed on? - Answer: Windows 10, Microsoft Server 2016,
2012 R2, Linux Debian (amd64), or Raspberry Pi.
What are the tested Hypervisor Platforms for 3CX? - Answer: Microsoft Hyper V (>2008 R2),
VMWare ESXi (>5.0), KVM, Citrux XenServer (>7.0).
What are the hardware prerequisites for 3CX? - Answer: Extension Count affects Memory, Call
Recording affects HDD size and speed, and VoIP Provider affects Memory (Audio Proxy).
What are the 3 types of 3CX licenses? - Answer: Standard (3CX FQDN and SMTP only), Pro (Queues,
Bridges, Reports, CRM, Hotel), Enterprise (Advanced Recording Control, Customization of Phone
logo, Standby License, Failover).
What is the default port configuration for 3CX? - Answer: Web Server HTTP - Default 5000, HTTPS -
Default 5001, Sip Server - Default 5060, Tunnel - Default 5090.
What is the purpose of the 3CX Web-Based Install Wizard? - Answer: To choose extension length,
administrator email, and mail server settings.
What is the purpose of the voicemail feature in 3CX? - Answer: The voicemail feature in 3CX allows
users to leave voice messages when the recipient is unavailable. It can have different voicemails for
different extensions and different languages.
What are Ring Groups and Paging Groups in 3CX? - Answer: Ring Groups merge multiple extension
numbers into a single number, while Paging Groups merge multiple extensions into one single
number, with all member extensions auto-answering with one-way audio from the caller to
members.
What is a SIP Trunk? - Answer: Provides Public Switched Telephone Network (PSTN) access and
transport via existing internet lines.
Complete Detailed Answers
What operating systems can 3CX be installed on? - Answer: Windows 10, Microsoft Server 2016,
2012 R2, Linux Debian (amd64), or Raspberry Pi.
What are the tested Hypervisor Platforms for 3CX? - Answer: Microsoft Hyper V (>2008 R2),
VMWare ESXi (>5.0), KVM, Citrux XenServer (>7.0).
What are the hardware prerequisites for 3CX? - Answer: Extension Count affects Memory, Call
Recording affects HDD size and speed, and VoIP Provider affects Memory (Audio Proxy).
What are the 3 types of 3CX licenses? - Answer: Standard (3CX FQDN and SMTP only), Pro (Queues,
Bridges, Reports, CRM, Hotel), Enterprise (Advanced Recording Control, Customization of Phone
logo, Standby License, Failover).
What is the default port configuration for 3CX? - Answer: Web Server HTTP - Default 5000, HTTPS -
Default 5001, Sip Server - Default 5060, Tunnel - Default 5090.
What is the purpose of the 3CX Web-Based Install Wizard? - Answer: To choose extension length,
administrator email, and mail server settings.
What is the purpose of the voicemail feature in 3CX? - Answer: The voicemail feature in 3CX allows
users to leave voice messages when the recipient is unavailable. It can have different voicemails for
different extensions and different languages.
What are Ring Groups and Paging Groups in 3CX? - Answer: Ring Groups merge multiple extension
numbers into a single number, while Paging Groups merge multiple extensions into one single
number, with all member extensions auto-answering with one-way audio from the caller to
members.
What is a SIP Trunk? - Answer: Provides Public Switched Telephone Network (PSTN) access and
transport via existing internet lines.
