# 3CX — Work Remotely, Anywhere

> Mobile VoIP and unified communications client for remote business collaboration. (iPhone/iPad app by 3CX.)

- Source: https://appshunter.io/ios/app/3cx/id992045982 (this page in markdown: same URL + `.md`)
- Developer: [3CX](https://appshunter.io/developer/392927998)
- Category: Business, Productivity
- Price: Free
- Rating: 2.60/5 from 317 App Store ratings · 601 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.3 · 64 MB
- Languages: American English, Czech, Dutch, French (France), German (Germany), Italian, Polish, European Portuguese, Russian, Chinese (Simplified, China) and 2 more
- Released: 2015-06-30
- Data updated: 2026-08-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/3cx/id992045982/reviews.md

## What is 3CX?

Stay connected and make remote work easier with 3CX. This app allows you to use your office extension from anywhere and not only for calls. Schedule conferences, chat with your colleagues and video call from your iOS device. 

Getting Started:

1. Install the app.
2. Open it, read and accept the license agreement and authorize the permissions the app needs (camera, microphone).
3. Open your web client or desktop app and click on the QR code in the top right corner. Details on how to access your web client are in your 3CX email sent by your administrator.
4. Open your camera on your iOS device and scan the QR code shown on your screen.
5. Your extension is configured and you’re now “Ready for calls”!

Important: This app is only for use with 3CX V20 and is not a standalone app. 

More information: https://www.3cx.com/user-manual/installation-iphone/

## Key features

- Office extension access anywhere
- Schedule conferences
- Chat with colleagues
- Video calls
- QR code setup

## What do users think of 3CX?

Overall sentiment: neutral

**Pros**

- 🚀 Works great
- 👍 Easy to use
- 👍 Convenient mobile extension
- 👍 Reliable system
- 👍 Powerful features

**Cons**

- 🐛 Calls drop/disconnect
- 🐛 Call quality issues
- 🐛 Unreliable notifications
- 🐛 Frequent bugs and crashes
- 🐛 Compatibility issues with iOS updates
- 🔋 Drains battery
- 🔒 Security/privacy concerns

**Commonly reported bugs**

- Inability to answer/make calls
- Freezing/crashing during calls
- Missed call notifications not working
- Incompatibility with certain iOS versions
- Issues with call transfer and merging

**Most requested features**

- Apple Watch support
- Customizable ringtones
- Do Not Disturb mode
- Call transfer/parking functionality
- Improved voicemail management
- Siri/voice control integration

## Recent user reviews (10 of 601)

All indexed reviews: https://appshunter.io/ios/app/3cx/id992045982/reviews.md

### 1/5 — AVOID AT ALL COST

*2026-08-17, version 20.0.22*

CALLS DON'T COME THROUGH. IT WILL MAKE YOUR BUSINESS LOOSE MONEY

### 2/5 — Nice...when it works

*2026-07-31, version 20.0.22*

this app is decent but has a lot of glitches and bugs and doesn't always work properly on my iPhone, it's very frustrating when I missed calls because the app decides to do its own thing

### 4/5 — Cool

*2026-07-20, version 20.0.22*

Pretty good, makes working from home easier! Please fix the notification settings. I have the app notifications turned off because I am off for the day, but calls will still come through. Its annoying to be woken up on your day off because an app doesn’t work properly :)

### 1/5 — Disappointing missing basic call blocking feature

*2026-07-02, version 20.0.21*

For a company as established and widely used as 3CX, it is very disappointing that the mobile app does not appear to offer a simple option to block unwanted callers. Spam calls are a daily issue for many users, and call blocking is a basic feature most phone apps already provide.

The app may work for business calling, but not having an easy way to block spam numbers makes the user experience frustrating. This is something 3CX should prioritize and add as a standard feature.

### 1/5 — Inconsistent

*2026-06-17, version 20.0.20*

Sometimes it rings to my phone, sometimes it doesn’t.  Sometimes I get a notification and no ring. Sometimes when I click on the notification, the app opens but I can’t answer the call.  Just a poor experience overall.

### 1/5 — No funciona

*2026-05-28, version 20.0.20*

Tengo la versión online pero ahí no me entran llamadas, solo salen, descargué la app pero no me deja conectarme con el codigo QR, se queda congelado

### 1/5 — After update it doesn’t work

*2026-05-25, version 20.0.20*

It was working before, I could able to get the calls now i can see the incoming call but cannot response it %90

### 1/5 — So unreliable

*2026-05-15, version 20.0.20*

Terrible how is that they can’t fix this problem. Missing and not receiving phone calls   How is this still in business

### 2/5 — Doesn’t ring

*2026-05-14, version 20.0.20*

Notification still comes in but ringer stopped.

### 1/5 — Verizon Wireless

*2026-05-06, version 20.0.20*

I installed the app on my Verizon Wireless iPhone scanned the QR code and it worked.  Left work, went to call a client and the app just says connecting.  I get home and it works.  I realized it only works while on WiFi.  It then says I’m blacklisted.  Reached out to IT and they added my cell phone IP to the whitelist.  It still says IP is blacklisted…. Any support to get it working on the Verizon Wireless network and not only on WiFi?

## Frequently asked questions about 3CX

### What does the 3CX app do?

The 3CX app allows you to use your office phone extension from anywhere, making remote work easier. You can make calls, schedule conferences, chat with colleagues, and conduct video calls directly from your iOS device.

### How do I set up the 3CX app?

After installing the app and accepting the license agreement, you need to scan a QR code displayed in your 3CX web client or desktop app using your iOS device's camera. This configures your extension for calls.

### Is the 3CX app free to use?

Based on the provided information, the app itself is free to download and use. However, it requires a 3CX V20 system to function and is not a standalone application.

### What are the main features of this app?

Key features include accessing your office extension remotely, scheduling conferences, instant messaging with colleagues, and making video calls. It also offers a simple QR code setup process.

### Who is this app intended for?

This app is designed for users of the 3CX V20 system who need to stay connected and collaborate effectively while working remotely. It's ideal for businesses and their employees.

## Version history (last 5 releases)

### 20.0.22 — 2026-07-13

Fixed: open video conference in default browser

### 20.0.21 — 2026-07-01

Fixed: Non-english chat messages may appear truncated
Fixed: Sending SMS from contact details
Fixed: Checking if vMail is enabled

### 20.0.20 — 2026-04-03

Fixed: speaker low volume.

### 20.0.19 — 2026-03-30

New: Support for latest iOS 26.2
Fixed: Queue Login/Logout menu not being shown
Fixed: The "Title and Department" capability ignored in Contacts list
Fixed: Transfer Join button disabled if the call is held
Fixed: Adhoc conference with Direct add (specific scenario)
Fixed: Inconsistency between the apps when Adhoc conference with consultive transfer & merge
Fixed: M365 and Google contacts filter options not hidden when connected to an MCM
Fixed: Contacts filter not working properly if Hide CRM option is ON
Fixed: Blank screen while opening a chat
Fixed: Chat notifications received from a deregistered account
Fixed: Mobile numbers of bridged extensions not matched
Fixed: Potential mixing of two accounts
Fixed: Conference bridge extension’s mobile number not resolved
Fixed: Forwarding rules toggles does not auto update
Fixed: CallKit "Merge Calls" button grayed
Fixed: Blocking a number causes the Take Ownership button to become disabled
Fixed: Incorrect recording duration
Fixed: CFDs not shown on keypad magnifier and transfer pickers
Fixed: Unresolved numbers can't be added as a scheduled conference participant
Fixed: Scheduled conference participant with random number has presence bubble
Fixed: Saving an SMS number as a contact uses the number as a name
Fixed: App not handling deleted user
Fixed: Chat messages may remain stuck when swipe for more
Fixed: BLF text alignment in Team for app status type
Fixed: Chat message may be shown clipped if too large
Fixed: Transfer dialog is shown without press transfer in specific scenario
Fixed: App startup procedure
Internal: Deprecated iOS 15

### 20.0.18 — 2026-01-12

New: Support Department Phonebook
New: Conference with Direct and Consultative feature
New: UI for transfer and conference sheets
New: Show Via and HeardBy for voicemail Queue/Ring group calls
New: Support for notify of users to incoming calls on Apple Watch (requires V20 Update 8 PBX)
New: Support for call AI screening (requires V20 Update 8 PBX)
New: Boss Secretary support (requires V20 Update 8 PBX)
New: Add support to share the log report using iOS native Share UI
Fixed: german translation for Join button
Fixed: Client does not accept shared text files
Fixed: Status bubble missing in Chat Lists for participants with no name
Fixed: Searching for names with special characters doesn’t work on the Team page
Fixed: Automatic redirection to private conference instead of normal conference
Fixed: Client truncates the chat message in Japanese
Fixed: Digits shown as participants initials in group chats
Fixed: Cannot create calendar conference in iOS17+ with restricted access
Fixed: Last message not properly formatted in Chats list
Fixed: Chat messages are not trimmed and space-collapsed when shown
Fixed: Number that is not in the contact list is shown as Personal Contact on MCM
Fixed: Global Phonebook contacts show as Personal Phonebook contacts on MCM
Fixed: Turning off an account keeps the MyPhone connection active
Fixed: Chat list does not update on transferred chats
Fixed: Recording inline player does not show hours
Fixed: Making a video call from device Contacts does not invite video
Fixed: Duplicate Queue Queue, Parking Parking in Recents
Fixed: Color inconsistency in Voicemails and Recordings
Fixed: Add button in conference does not work
Fixed: Conferences with 2 or 3 digit extensions not allowed on V7
Fixed: U7 Duplicated Personal contact name in Calls history - incoming calls only
Fixed: Add Contact button is visible after saving a number in CRM
Fixed: Chat from Contact Card to a transferred chat remains stuck in spinning wheel
Fixed: Forwarding Rules not cleared when switching to External Number
Fixed: Bridged extensions having visually formatted mobile numbers are not matched
Fixed: Bridge prefix shown prepended on a scheduled conference bridged participant
Fixed: Opening contact card from recents for a hidden extension resolves to a bridge extension
Fixed: Status bubbles not shown when adding to group chat from different departments
Fixed: Do not show participants name and avatar in single chats
Fixed: Wrong names of call history items with a voicemail prefix
Fixed: Client does not show in chat notification the avatar of an bridged extension
Fixed: Compose SMS in Chats appends bridge ID to the mobile of a bridged extension
Fixed: Recordings missing prefix for outgoing calls to bridged extensions
Fixed: Start chat phone picker for bridged extensions
Fixed: Do not show voicemail button for bridged extensions
Fixed: Join button is missing in the Meetings next to the Participants when Video Meeting only

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## More apps by 3CX

- [3CX Video Conference](https://appshunter.io/ios/app/3cx-video-conference/id1039756959)

All apps by 3CX: https://appshunter.io/developer/392927998

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*