3CX vs Mitel Secure Cloud

3CX is a business communications platform with web, desktop and mobile apps for Windows, Linux, macOS, iOS and Android. It includes an auto attendant, advanced call routing and voicemail transcription. The 4SC Basic Free plan is listed at free and includes 10 users and four simultaneous calls; its license must be renewed manually each year. Basic costs $300 a year, billed annually, and includes 40 extensions and eight simultaneous calls. The service also lists 40 included users. The maker is 3CX, founded in 2005. The supplied facts give Tampa, Florida, and Nicosia, Cyprus, as headquarters locations.

Mitel Secure Cloud is a private managed communications service for large enterprises, including organizations in healthcare, financial services, and government. Its tools cover business calling, team messaging, video meetings, and contact-center channels including phone, chat, email, SMS, and social media. Calling and case-handling features include advanced routing, auto attendant, voicemail transcription, IVR, call recording, and supervisor tools; workforce management includes forecasting, skills-based scheduling, and intraday management. The unified communications suite includes presence management, persistent messaging, HD video conferencing, and mobile applications. Mitel describes dedicated, isolated customer instances with independent access controls and no shared infrastructure. It states that data storage, processing, and backups take place in Frankfurt, Germany, and cites ISO 27001, BSI C5, and GDPR requirements. Organizations can retain existing SIP providers, migrate in phases, and connect on-premises systems such as DECT wireless systems and SIP endpoints. Mitel describes support for organizations with 1,000 to 5,000 users and very large enterprises with 5,000 to 10,000+ users. It is available on Android, iOS, macOS, web, and Windows. Pricing is on request.