Keeping your 3CX IP phone firmware current improves security and reliability. In recent updates to the 3CX system, several changes have been made to the IP Phones to improve security and simplify the configuration process. In this blog post, we’ll take a closer look at the updates and what they mean for users.
Quick answer: To update a 3CX IP phone, log in to the 3CX Management Console, open Phones, select the device, and apply the recommended firmware version — the phone reboots and updates automatically through auto-provisioning. 3CX supports Yealink, Snom, Fanvil, and Grandstream handsets, and running the latest approved firmware is the best way to maintain security, call quality, and compatibility.
Quick Facts
| Update Method | Auto-provisioning via the 3CX Management Console (Phones > Select device > Firmware) |
| Supported Brands | Yealink, Snom, Fanvil, Grandstream |
| Yealink Models Restored (Update 6) | T29G, T46G, T48G, T41P, T42G |
| Snom Models Supported | D120, D305, D375, D745, 710, 720, 760 |
| Latest Snom Firmware | v10.1.141.10 (D3 & D7 series) |
| Why Update | Maintains security patches, call quality & 3CX compatibility |
3CX Update 6 Enhances Support for IP Phones
After being marked as end-of-life by vendors, some IP phones were unable to keep up with security updates in 3CX’s Update 5 and were removed from support. However, with the release of 3CX’s Update 6, these phones are once again supported and functional, able to be configured both locally and remotely. It’s important to note that if you don’t already own these phones, they should not be purchased as they will not receive any future firmware updates and could be subject to removal if a security vulnerability is found.
Good news! With Update 6 Alpha, Yealink has released new firmware for its T29G, T46G, and T48G models to ensure secure provisioning with 3CX once again. The firmware has undergone extensive negotiations and discussions to ensure maximum security and compatibility.
And it gets even better! With the final release of Update 6, Yealink has added more models to the list, including the T41P and T42G.
The Yealink T27P has made a comeback, but due to the lack of updated firmware from Yealink, it can only be set up within a local area network (LAN). This means that the phone can only be configured through a direct connection to the network, rather than remotely through the internet.
To ensure the best experience, it is highly recommended to update your phone to the latest firmware version before configuring it. This will ensure maximum security and optimal functionality.
Snom D120, D305, D375, D745, 710, 720, and 760 SIP Phones are once again available for use! However, it is essential to ensure that these phones are updated to the latest supported firmware before configuring them through 3CX.
Manual Provisioning Solution for Older EOL IP Handsets
Despite efforts to bring as many EOL IP phones back into support, some models just cannot be securely provisioned with 3CX. To accommodate users of these older handsets, manual provisioning guides have been updated to provide a solution. This involves specifying the registrar/SBC IP and AUTH ID through the phone’s web interface. This solution is only for existing users who already have these older IP handsets, and purchasing such outdated phones is not recommended.
The following phones fall under this category:
- Grandstream GXP Series: 1160, 1165, 1400, 1405, 1450, 2100, 2110, 2120, 2124
- Polycom VVX Series (EOL): 300, 310, 400, 410, 500, 600
- Snom: 300, 320, 360, 370, 820, 821, 870, PA1, Meeting Point
- Yealink: T19P, T20P, T21P, T22P, T26P, T28P, T32G, T38G
- Yealink (DECT phones): W52P, W56P, W60P
- Aastra 67i Series: 6730i, 6731i, 6739i, 6751i, 6753i, 6755i, 6757i
- Avaya 9601, 9608G, 9611G, 9621G and 9641G
- Cisco 7900 Series: 7940, 7941, 7960, 7961
- Cisco SPA Series: 508G, 525G/G2, 302, and others
- Fanvil: C400, C600, X3, X5, X1, iW30
New firmware updates
It is crucial to keep your system updated with the latest firmware releases for smooth operation. 3CX thoroughly tests all new firmware releases before making them available to users.
Snom has released a new firmware version v10.1.141.10 for the D3 and D7 series models, including bug fixes and support for newer hardware revisions. Users with valid maintenance can upgrade directly through 3CX, while others can follow the manual upgrade guide.
Yealink has also released special firmware, Lydis, for BeNeLux customers, available for various T3X, T4X, and T5X Yealink phones. See also our guides on maximizing 3CX efficiency and optimizing 3CX call quality. Firmware notes are on the official 3CX documentation site.
How to Update Your 3CX IP Phone Firmware
Updating your 3CX IP phone firmware is straightforward and helps keep your handsets secure and compatible with the latest features. Most 3CX IP phone models support automatic provisioning, so the firmware is pushed from the 3CX Management Console. To update manually, log in to the console, open the Phones section, select the device, and choose the recommended firmware version. The 3CX IP phone will reboot and apply the update automatically.
Before updating, always back up your 3CX configuration and confirm the firmware version is approved for your handset model. Running the latest supported firmware on every 3CX IP phone reduces call-quality issues, patches security vulnerabilities, and ensures smooth integration with the 3CX platform. You can review official version notes on the 3CX documentation portal.
Supported 3CX IP Phone Brands
3CX works with a wide range of IP phone brands, including Yealink, Snom, Fanvil, and Grandstream. Choosing a supported 3CX IP phone ensures full plug-and-play provisioning and access to advanced call features such as BLF keys, hot-desking, and presence. Bits Secure IT helps businesses across the UAE select, configure, and provision the right 3CX IP phone models for their environment through our unified communication services.
Troubleshooting Common 3CX IP Phone Issues
If a 3CX IP phone fails to register or drops calls, start by confirming the network connection, then verify the firmware is current. Re-provisioning the device from the 3CX console resolves most registration errors. For audio problems, check QoS settings and ensure the firmware on each 3CX IP phone matches the version recommended by 3CX. Keeping firmware up to date is the single most effective step for a stable, reliable deployment.
Get Started With 3CX IP Phone Setup
Need help deploying or updating your 3CX IP phone fleet? Contact Bits Secure IT at [email protected] or +971 4 328 2444 and our team will handle provisioning, firmware updates, and ongoing support for your 3CX IP phone system.
Frequently Asked Questions
How do I update firmware on a 3CX IP phone?
Firmware for supported IP phones is typically managed through the 3CX management console, which can push provisioning and firmware updates to phones automatically once they are configured.
Why are firmware updates important for IP phones?
Firmware updates fix bugs, patch security vulnerabilities, and add features. Keeping IP phones updated helps maintain secure, reliable voice communication.
Which IP phone brands work with 3CX?
3CX supports a wide range of SIP phones, including Yealink, Snom, Fanvil, Cisco and others, with auto-provisioning for supported models.
Do I need to configure each 3CX IP phone manually?
Not usually. Supported phones can be auto-provisioned from the 3CX console, which applies configuration and firmware automatically, saving setup time.
Can Bits Secure IT help set up 3CX IP phones?
Yes. As a 3CX partner, Bits Secure IT Infrastructure provisions, configures and supports IP phones for 3CX deployments across Dubai.
