The 3CX client for iOS only works with 3CX Phone System v15.5. It will not work with other commercial or open-source PBXs.

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 15.5.17

- faster launch and reconnect
- added OPUS codec
- faster and smoother Recents display
- added Apple's UI refresh control in Recents (by swiping-holding down the list)
- support for upcoming V15.5 SP6 PUSH
- fixed wrong call start/connect duration in Recents
- fixed Add Contact button in Contacts not being shown sometime when account reconnects or changed
- fixed status custom message being wrongly cleared when status updates
- fixed Presence/Contacts search bar remaining "hidden" sometimes
- minor fixes in color themes

Ratings and Reviews

4.1 out of 5
83 Ratings
83 Ratings

Great Phone System (PBX)

Tomorrow's forecast

Excellent phone system for micro business up to enterprise. The app is a good complimentary product to accommodate people on-the-move. The call quality is well improved and definitely gets the communication job done! Packed with features to handle inbound calls to your liking. I use Flowroute as my "phone lines" provider IPpbxHost to host my 3CX system and the whole solution has cut my phone costs by approximately 60%. Our system serves 3 offices and multiple remote workers. Works great!

Pretty good


This app is pretty good. I like I can walk away and still get phone calls. I wish they wouldn’t have taken away the “play” voicemails feature. Now you have to “play on phone” only and basically call in so no forwarding to someone after listening anymore that way. Bring that back and it would be back up to 4-4.5 stars for me. But a lot of improvements have been made in other areas to make this app better.

Developer Response

Sorry, 3CX client never, ever had the ability to save or forward a voicemail file (to Play it, yes). Maybe will be implemented in the future. Currently, the recommended way is by configuring extension's Vocemail option in the PBX to automatically send wav files as eMail attachement.

Doesn’t always work right

Sonic SA

Hi, been using the app for a while now. Made life great when going out of the country.

Couple of points to fix:
1. Drains the battery very fast
2. First calls received when the app isn’t open doesn’t work. I always have to open the app after the first call and then from there on further it seems to be fine
3. Calls get scrambled and delayed once someone else phones you or if you receive WhatsApp message
4. Can’t change the ringtones and that one ringtone is getting irritating
5. Spam call Apps don't work through the app
6. Blocked numbers can get through
7. International dialing codes in saved phonebook numbers needs to be changed (eg. +27 must be changed to 0 for the number to work)

If some of these points are looked at, I will definitely change my rating.

Developer Response

Please try latest 15.5.13 - push support, call handling and background functionality has been heavily revised and improved and ringtone support has been added.


13.3 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, 9.7-inch iPad Pro, 9.7-inch iPad Pro Wi-Fi + Cellular, iPad (5th generation), iPad Wi-Fi + Cellular (5th generation), 12.9-inch iPad Pro (2nd generation), 12.9-inch iPad Pro Wi‑Fi + Cellular (2nd generation), 10.5-inch iPad Pro, 10.5-inch iPad Pro Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), and iPod touch.
English, Bulgarian, Czech, Danish, Dutch, French, German, Greek, Italian, Japanese, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Tagalog, Turkish, Ukrainian
Age Rating
Rated 4+
Copyright ©2018 3CX Ltd.


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