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 16.0.1

-increased version number to 16.0.1
-fixed IPv6 issue in tunnel
-fixed search bar disappearing when double-tapped
-fixed account name overlapping the line "On Hook" status
-fixed "Also Ring My Mobile" switch being incorrectly enabled
-fixed contact create/edit UI layout for iPhone5s and iPads
-fixed bridged extensions appearing as "Not Registered" in chat window - now they show the correct status.
-fixed app becoming unresponsive in certain conditions due to web participants chat messages
-fixed main interface issues when app launches with device in landscape mode - disabled rotation
-fixed extensions wrongly grouped in "Forward To" for forwarding profiles - before there were the group names here - now we removed groups, and set all the extensions like in web client and everywhere else.
-fixed "Take Photo" action when 3CX app has no Camera permission.
-fixed integration with
-added support for encrypted tunnel
-added Call/Conference button in chats
-added support for saving/uploading documents as chat attachments
-added support to view chat participants
-added support for archive/unarchive/transfer/take ownership/end session for chat messages (requires latest V16)
-added support for naming a group chat (requires latest V16)
-added support for better handling of queue and web participants chats (requires latest V16)
-improved push chat notification handling (requires latest V16)
-improved chat icons
-call duration is now displayed according to device settings
-SIP calls now appears in callkit/device history as "3CX Audio" instead of "3CX Client Audio"
-other small UI fixes for iPhoneX/iPad devices family
-removed recordings
-switching of status has been removed from main avatar, available only from profile status indicator bar and from burger menu
-updated translations

Ratings and Reviews

3.8 out of 5
705 Ratings

705 Ratings

TP5555555555 ,

Good app but MAJOR flaw

Good app but there’s no way to keep it from ringing other than disabling the entire account. Which the problem doing that is if you also want to use it for call forwarding after hours then you’d have to remember to re-enable it or else you’d be missing calls and not knowing it. 3CX needs to simply make an option to set with that presence whether you want to also ring the mobile app. So freaking simple.

And while I’m at it, can you guys PLEASE add an option so people can actually see their presence ON THE PHONE?? Despite what you want people to use, the vast majority of people are going to want to control most things from their desk phone, NOT their mobile app. Come on guys, think practical on this one.

Stymyx ,

Great when it works, but it’s horribly unreliable

I really want to love this app, but I can’t. When it works, it works great! The problem is that it’s just not reliable. I use this app only when I’m in my office with my iPhone connected to my office’s wi-fi. Frequently (but not always) when my iPhone is connected to my AirPods and I launch it and make a call, the call connects and I can hear the recipient, but the recipient cannot hear me. When I click the speaker button on the “in-call” screen, it says it’s connected to the AirPods, yet the recipient can’t hear me. And it’s not just with Apple’s Bluetooth AirPods. This also frequently happens with Apple’s wired EarPods. In addition, I can never successfully make 2 calls in a row without having to force the program closed. The first call connects, but the second call doesn’t. Basically, I have to force-close the app after every single call. Occasionally even a force-close doesn’t help either and I end up having to reboot the phone for the app to start working again. This is all on a brand-new iPhone XS Max running iOS 12.1. I had the same results with my previous iPhone 8+.

Disappointed Daily ,

Started strong and went downhill

I’m typically not a 1 star reviewer...but it has gotten so bad that I cannot even leave my office and accept a call.

As a reservations person for large activity center, I rely on connectivity and mobility. When we first signed up, I was able to move all over island and about my day while having no problem connecting a call. The product was superior to ATT Ring Central. We were happy.

Now it barely can register to the network and when it does it gives a spinning wheel of death trying to connect a call. If you change cell towers once a call is connected, it drops the call. If you switch from WiFi to cell tower once a call is connected it drops the call.

I’ve been a squeaky wheel with our IT providers who administer this product and turns out it is the product itself that has failed.

I would like answers and a response from 3CX directly but they never seem to want to hear from customers directly and all calls must be administered through our IT provider.

If you are with 3CX and would like to give me a call, you can get our contact information from Data Voice Options out of Colorado. I’m their only client on an island and they have my permission to give you my contact info!


15.4 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, 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, 12.9-inch iPad Pro, 12.9-inch iPad Pro 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), iPad Pro (12.9-inch) 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,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
Rated 4+
Copyright ©2019 3CX Ltd.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

  • Siri

    Get things done within this app using just your voice.

More By This Developer

You May Also Like