3CX Review - why 4.5 stars?

• Effortless User & System Management: This feature comes with solutions in easy user management, saving countless hours of work, adding new staff, setting up voicemail and updating users in minutes, Flexible inbound/outbound rules, DIDs & ring groups, and the remote system and user management from anywhere.
• Appliance or Virtualized: This feature comes with other sub-features such as virtualizing with VMware, Hyper-V, or KVM, Running on a low-cost Raspberry Pi or Mini PC PBX appliance, switching between servers or the cloud with built-in backup & restore, and easily scale PBX installation.
• One Platform for all Communication: This feature comes with an Integrated browser-based video conferencing tool, connection via voice, video, instant messaging, website live chat, Facebook messaging and SMS integration, etc.

• 3CX is always updated with improvements
• The software offers ease of receiving and transferring calls
• The software is easy to configure and install by the end-user

• 3CX offers very little customization outside of the user interface

• Functionality: 3CX Phone System offers features like Reporting/Analytics, Integrations, Alerts/Notifications, Reporting & Statistics, Activity Dashboard, Chat/Messaging, Contact Management, etc. RingCentral MVP offers features like Local numbers, Toll-free and vanity numbers, Extensions, Presence & Head-up Display, Call delegation, Call screening, Cloud PBX, Greetings, Multi-level IVR, Music on hold, Dial-by-name directory, Number porting, International calling, International numbers, Team collaboration, Business SMS and MMS, Message alerts, Secure VoIP service, Analytics portal, Performance reports (available in 3CX Phone System), etc. Mitel MiCloud Connect offers features like Voice, Collaboration (available in RingCentral MVP), Contact Center, Mobile Apps, Conferencing, Participant Management, Contacts, Recent, VPN, Call Handling, Voicemail, Call Recording, Call Transfer, Forwarding, Paging, Call Management, SIP Trucking, Phone Routing Assignment, Sync with Exchange, Phone Management, etc. Aircall offers features like Toll-Free Numbers (available in RingCentral MVP), Call Conferencing, Warm Transfer, International Numbers, Business Hours, Ring on Speakers, Interactive Voice Response, Forward-to-phone, Shared Contact, etc.
• Customers/Industries: 3CX has customers like Mercedes-Benz, Honda, BMW, Coca-cola, etc. RingCentral MVP targets healthcare, Education, Retail, High tech, etc. RingCentral MVP has customers like Colombia University, Orange, Renault, Lush, Carvana, SoFi, Waitrose & Partners, etc. Mitel MiCloud Connect targets industries in Government, Retail, Sport and Entertainment, Healthcare, Legal Services, Professional Services, Non-profit, etc. Mitel MiCloud Connect has customers like Smile Doctors, Rewards Network, Diamond Asset, Geo Foundation, Western Mutual Insurance Group, Intelling, Weightmans, Raytown Quality Schools, Children Hospital of Eastern Ontario, etc. Aircall targets industries in Financial Services, Healthcare, Retail & E-commerce, Travel & Hospitality, Software & Technology. Aircall has customers like Avocado, Pipedrive, Expensify, Untuckti, Birdies, Socialbakers, AirTreks, QuickStay, etc.
• Cost: 3CX Phone System has a cost rating of 2.8/5, according to ITQlick expert cost analysis. This means it is low-cost VoIP software. The rating system considers this software rated 1-2 as low-cost and 4-5 as high cost. 3CX Phone System starts at $145.00 per year at a flat rate and comes with a free trial and a free version. RingCentral MVP starts at $19.99 per user per month and $29.99 monthly. The license cost information for Mitel MiCloud Connect is unavailable. Aircall starts at $30 per user per month, billed annually.
• Cloud-based/On-premise: 3CX Phone System and all its alternatives are cloud-based. 3CX offers On-Premise for Windows and Linux.
• Popularity: 3CX is privately held with more than 600,000 customers in 190 countries. Aircall is also privately held and trusted by 10,000+ companies. RingCentral MVP is publicly traded on the NYSE under the RNG symbol with over 350,000 customers on its platform.
• Scalability: 3CX, Mitel MiCloud Connect, and RingCentral MVP can accommodate businesses/organizations of all sizes.
• Support: 3CX offers support channels like Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support, and Chat. Aircall, MiCloud Connect, and RingCentral MVP offer all support channels of 3CX plus a 24/7 (Live Rep).

What is the REAL total cost of implementation? on top of the total cost of licenses which is easy to calculate you need to add the cost of training, customization, data migration, and other "hidden cost". ITQlick pricing score is 5.6 out of 10 (10 is most expensive). You can fine here the REAL total cost breakdown for 3CX. You can also find here pricing information from 3CX's website.