No. 1 of 22 ·Computer Telephony Integration Software

KalliopeCTI

Windows · Mac · Linux · Android · iPhone

Freedom report

Three barsScore 6.7

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely5 of 6 device platforms
DocumentedPlans, terms and facts published

KalliopeCTI is ranked #1 of 22 in computer telephony integration software on Freedom251. It runs on Android, iOS, Linux, macOS, Windows. There is a free plan.

KalliopeCTI plans and pricing

All plans

KCTI 4 Free Free free mode · Windows, macOS, Ubuntu · free download wiki.kalliope.com · 3 Oct 2026

KCTI 4 Phone Not published One-off license fee; contact a local installer for details License required per workstation · includes Pro mode and KCTI Mobile license · adds softphone mode kalliope.com · 3 Oct 2026

KCTI 4 Pro Not published One-off license fee; contact a local installer for details License required per workstation · includes KCTI Mobile license · Outlook contact sync and phone remote control kalliope.com · 3 Oct 2026

Compared on computer telephony integration software

Free plan: Yes
Click-to-dial: Yes
In-call controls: Yes
Deployment: hybrid
Supported phone systems: Kalliope PBX; Kalliope4SP; KalliopeCloud

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The record

Purpose: KalliopeCTI connects telephone and IT systems to help optimize business processes.
Desktop features: The desktop client offers click-to-call, call-triggered automatic actions, address book and CDR access, Outlook contact integration, phone remote control, softphone mode, and instant messaging.
Mobile calling: The Android and iOS app lets users make calls through company lines so recipients see the office number, and it provides real-time extension call notifications.
Attendant console: The Windows attendant console supports real-time incoming-call classification, call selection, keyboard shortcuts, drag-and-drop forwarding, and Snom or Yealink phone CTI mode.
Integrations: Desktop Outlook contact synchronization is available in Pro and Phone modes, while the attendant console supports Snom and Yealink phones.
License requirement: Pro and Phone modes require a license activated on KalliopePBX V4 for each workstation; Phone also includes Pro mode.
Compatibility: KalliopeCTI is described as available for Kalliope PBX, Kalliope4SP, and KalliopeCloud, while the KCTI 4 wiki describes it as an accessory application for KalliopePBX V4.
Platform details: The wiki lists Windows 10 or later, macOS Ventura, Monterey and Big Sur, and Ubuntu 20.04 or 22.04 system support for KCTI 4.
Security: KalliopeCTI Mobile communicates with KalliopePBX over an encrypted connection for telephony, notifications, and chat.
Contact privacy: Device contacts are used within the app and are not sent to KalliopePBX or shared with other users, except as needed to place PBX calls.
Support: Kalliope lists downloads, a Wiki, and technical support among its support resources.
Availability limit: The current download page lists KalliopeCTI 4.5.23 installers for Windows, Ubuntu 18.04 64-bit, and Mac, plus a legacy Windows build for PBX firmware through 3.12.1.
Founded: 2006
Headquarters: Pisa, Italy
Price from: Free

Where it ranks on Freedom251

Best Computer Telephony Integration Software in 2026#1 of 22

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Sources

kalliope.com/features/applications/· checked 3 Oct 2026
wiki.kalliope.com/en/latest/Kalliope%20Applications.html· checked 3 Oct 2026
wiki.kalliope.com/en/latest/KalliopeCTI%20Mobile%20Androi· checked 3 Oct 2026
kalliope.com/downloads/· checked 3 Oct 2026
kalliope.com/downloads/· checked 3 Oct 2026