The 3CX client for iOS only works with 3CX Phone System v16 and V15.5. It will not work with other commercial or open-source PBXs. Some features will only work with Version 16 so it is recommended to update your 3CX Server installation to V16.

This app allows you to make and receive office calls on your device from anywhere. The app fully supports PUSH, allowing your device to be on standby when not in use and save battery life. When an incoming call occurs on your office extension, your device will 'wake up' and notify you as it would with a regular GSM call.

Benefits include:

- Make and receive calls on your smartphone/tablet from your office extension.
- One number concept. Calls made to your office extension will ring on your iOS device.
- Reduced mobile phone bill; call colleagues via the 3CX client rather than via the mobile network.
- Seamless out of office or in office detection.
- Transfer & Hold calls.
- Easily change your status (available, busy etc.).
- Take multiple calls simultaneously.
- View the status of your colleagues.
- Easily setup conference calls.
- Instant Corporate Chat.

The 3CX client requires Apple PUSH to be configured by your organization's PBX administrator.

What’s New

Version 16.0.2

Warning message informing users that a major update is coming soon.

Ratings and Reviews

3.5 out of 5
253 Ratings

253 Ratings

Reseegmwgnwgn ,

Would be great if it worked

It would be a great addition to your work toolkit if it worked. All too often calls received outside of the office ring, you answer and nobody there but the call still remains active. To the person calling it’s like you cancelled the call which is not great.

When I’m in the office all too often the 3CX app on my mobile doesn’t ring when I’m away for my desk - which is exactly what you want it for.

I suspect part of the problem is setup with the 3CX server / firewall but I notice problems increase / decreases with new versions of the App.

reece8765 ,

Almost there!

This is great for internal calling on WiFi and 3G/4G, external calling I’ve not bothered to setup because I don’t need that, but I imagine it’d work the same. However, only drawback I can think of is that you can call yourself and put yourself in your own queue. Now that you’d want to, but worth bringing this up only other drawback I can think of is the management console. When enabling managers via extensions, they can’t view or download call recordings unless you allow general (all) administration privellages, even when ticked. One final drawback is call recording. When recieving a call, the call should be recorded on both ends or on the end required for call recording. At the moment, it only records outgoing calls but not incoming calls unless the incoming extension is also set to record.

OVERALL: quality app, easy to set up and HIGHLY RECOMMEND for small businesses/startup companies and for tech students who want to figure these things out! Pretty cool, I say!

Alan Brz ,


This app may work but just not all the time and generally when it feels like it despite 3 or 4g or WiFi it seems when I want to call the office it enjoys trying to call me when it works it’s good but it is frustrating to say the least.


15.5 MB

Requires iOS 10.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, iPad Pro (12.9-inch), iPad Pro (12.9-inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7-inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5-inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro (12.9-inch) (3rd generation), iPad Pro (12.9-inch) (3rd generation) Wi-Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi-Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi-Fi + Cellular and iPod touch.


English, Bulgarian, Czech, Danish, Dutch, French, German, Italian, Japanese, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Tagalog, Turkish, Ukrainian

Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

  • Siri

    Get things done within this app using just your voice.

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