3CX Update: Busy Lamp Field Enhances Call Control for Mobile Users

In a significant update for support on both iOS and Android apps, 3CX has introduced Busy Lamp Field (BLF) support in the latest release, enhancing call control and workflow efficiency. This feature empowers users with real-time visibility into colleagues’ statuses, streamlined call transfers, and the ability to manage incoming calls directly from their mobile devices.

As businesses increasingly adopt mobile-first communication strategies, this enhancement ensures that teams remain connected and responsive, regardless of their location.

Understanding BLF (Busy Lamp Field) Support

BLF provides real-time insights into the call status of team members, a critical tool in dynamic business environments where frictionless communication is essential. Whether you’re on an iPhone or Android, this update is built for productivity on the go

Monitor Availability

Instantly determine if colleagues are available, on a call, away, or busy.

Facilitate Transfers

Execute blind and attended transfers seamlessly without navigating multiple interfaces.

Manage Calls

Park and retrieve calls with a simple tap.

Call Pickup

Answer incoming calls on behalf of colleagues when necessary (available with V20 Update 5).

With BLF now on both Android and iOS, users can handle calls confidently without switching devices or waiting on desktop access.

Accessing BLF

On iOS

1. Navigate to the Team Section: Tap the "Team" button in the navigation bar.

2. Select BLF Filter: Switch the filter to "BLF" located at the top left corner.

3. Automatic Configuration: If BLF settings are already established in your Web Client, they will automatically reflect in your iOS app.

4. Manual Setup: For new configurations, access the Web Client, go to "Settings" > "BLF," and customise your preferences.

On Android

1. Tap the Team icon in your navigation bar.

2. Switch the filter to BLF from the top-right.

3. Setup follows the same flow as iOS—via Web Client > Settings > BLF.

Queue Login & Status Control (Android Only)Android users can now change their queue login status even while on a call. This helps:

Pause incoming queue calls.

Stay focused without switching screens.

Manage call workflows more efficiently.

Customisable BLF types include

Line Status Monitoring

Observe the real-time call status of team members.

Speed Dial Shortcuts

Create quick access to frequently dialed numbers.

Shared Parking

Simplify the process of parking and retrieving calls.

Queue Management

Monitoring Connection Quality (IOS & Android)

To address issues like dropped calls or poor audio quality, the 3CX app now includes a Call Monitoring Tool. This feature allows users to:

Diagnose Issues

Identify and troubleshoot call quality problems in real-time.

Access Reports

View detailed call quality reports directly within the app.

Comprehensive Analysis

For more in-depth reports, utilize the Web Client's call history section.

To activate this feature:

Open Menu: Tap the hamburger menu.
Select Monitoring: Choose “Monitor Connection Quality” and set the desired monitoring period.
Review Reports: After the call concludes, access the report in your call history.

"Edit Before Call" Feature (IOS and Android)

The “Edit Before Call” functionality allows users to modify phone numbers from their call history before dialing, reducing misdials and enhancing efficiency. To use this feature:

1. Access Recents: Navigate to the “Recents” tab.
2. Edit Number: Tap the desired entry, select “Edit before call,” make necessary changes, and initiate the call.

Integration with Google Workspace (IOS & Android)

For businesses that utilise Google Workspace, the latest 3CX update delivers seamless synchronisation of personal contacts. Benefits include:

Direct Access

View and manage Google Contacts within the 3CX app.

Efficient Filtering

Quickly locate contacts using the Google filter.

Automatic Syncing

Ensure contact information remains up-to-date across platforms.

This integration is available with 3CX V20 Update 5.

SPN Co: Your Partner in 3CX Cloud Voice Business Solutions

At SPN Co, we specialise in delivering tailored 3CX solutions to enhance your business communications. Our offerings include:

Tailored Implementations

Solutions designed to meet your unique business needs.

Workplace Integration

Combining 3CX with services like Business NBN for optimal performance.

Ongoing Australian Support

Continuous assistance to ensure your communication systems operate flawlessly.

Frequently Asked Questions

The 3CX Android app is compatible with Android 10 and above. Ensure your device is up-to-date to use the latest features.
Source: 3CX Android Release Notes

The app requires iOS 15 or higher and is compatible with iPhone 6S, iPhone SE, and newer models.
Source: 3CX IOS Release Notes

BLF settings are configured via the Web Client under Settings > BLF. Once set, they automatically sync with the app.

The Call Monitoring Tool in the app allows real-time diagnostics and provides detailed reports after each call.

Yes. This feature is available for numbers in your Recents tab, allowing you to make quick changes before dialling.

In the Contacts tab, switch to the Google filter. This will show your synced Google Workspace contacts.
Note: Requires 3CX V20 Update 5.

Absolutely. From initial deployment to custom configuration, SPN Co provides end-to-end 3CX support tailored to your business needs. We make transitioning easy. You can learn more about SPN Co’s 3CX solutions here

Yes. SPN Co provides training and user guides to ensure your team is confident using 3CX from day one—whether on mobile, desktop, or web.

Yes. The app works on both Wi-Fi and business mobile data, giving you full functionality wherever you are.

Great question! Simply, because you deserve more than just a provider—you deserve a partner. At SPN Co, we become an extension of your team. With over 50 years of combined experience in telecommunications, we know what it takes to support your business with precision, care, and agility.
We’re not here to lock you into contracts or treat you like a number. Instead, we offer transparent pricing, Australian-based support, real-time training, and tailored solutions that grow with your business. Whether you’re just getting started or scaling fast, we make communication seamless, reliable, and refreshingly stress-free.