No. 9 of 33 ·Unified Communications Software

Zultys MX

Web · Windows · Mac · Linux · Android · iPhone · Self-hosted

Freedom report

Two barsScore 5.7

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely6 of 6 device platforms
DocumentedPlans, terms and facts published

Zultys MX is ranked #9 of 33 in unified communications software on Freedom251. It runs on Android, iOS, Linux, macOS, Self-hosted, Web, Windows.

Zultys MX plans and pricing

All plans

Zultys MX Not published Contact Zultys for pricing; no price is listed on the page. MX-SE II: up to 50 users · MX-E: up to 300, 1,000, or 2,000 users by model · MX Virtual: up to 40,000+ users zultys.com · 3 Oct 2026

Compared on unified communications software

Business calling: Yes
Team messaging: Yes
Video meetings: Yes
Call recording: Yes
Auto attendant: Yes
Business SMS: Yes

Best Zultys MX alternatives

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Two bars Microsoft Teams Free tier No. 1$0.33/mo6.8 Two bars 3CX Free tier No. 2$25/mo6.7 Two bars Webex App Free tier No. 3Free6.7 Two bars Rainbow Free tier No. 4€2/mo6.6 Two bars Hubgets Free tier No. 5$0.24/mo6.4 One bar Zoom Scheduler Paid plans No. 6—5.8

The record

What it does: Zultys MX is an IP phone system and unified communications platform with built-in SIP trunk support.
Deployment: MX systems can be deployed on-premise, virtualized, hosted, or in a hybrid configuration.
Communications: The listed capabilities include voice, voicemail, fax, presence, instant messaging, chat, conferencing, call recording, and contact center support.
Capacity: MX-SE II supports up to 50 users, MX-E models support up to 300, 1,000, or 2,000 users, and MX Virtual can support 40,000 users or more.
Web administration: Web Admin is browser-based and supports most administrative and essential configuration tasks available in MX Admin.
Integrations: Zultys lists integrations including Outlook, Microsoft Teams, Salesforce, ClassLink, and PolyAI; availability varies by feature and package.
Bundle limits: The user bundles page marks some features as paid add-ons and notes possible usage-based charges for transcription and possible charges for SMS/MMS depending on deployment and SMPP support.
Cloud reliability: Zultys states its Cloud Services target goal is 99.999 reliability and describes multiple redundant data centers monitored around the clock.
Support: Zultys Cloud Services customers are supported by a local certified agent or partner reseller for system design, training, user additions, billing questions, and ongoing support and maintenance.
Who it is for: Zultys describes MX as serving small and medium businesses, branch offices, and enterprises, with hosted packages for standard users, unified communications, and contact center organizations.
Founded: 2006
Headquarters: Sunnyvale, California, USA

Where it ranks on Freedom251

Best Unified Communications Software in 2026#9 of 33

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Sources

zultys.com/on-premise-and-virtual/· checked 3 Oct 2026
zultys.com/release/zultys-mx-release-19-0-zac-10-0· checked 3 Oct 2026
zultys.com/application-integration/· checked 3 Oct 2026
zultys.com/zultys-user-bundles/· checked 3 Oct 2026
zultys.com/about-us/· checked 3 Oct 2026
zultys.com/zultys-cloud-services/· checked 3 Oct 2026
zultys.com/business-phone-systems/· checked 3 Oct 2026
zultys.com/products/mx· checked 28 Sept 2026