3CX SMTP, RPS and global IP Blacklist security and reliability changes. 3CX Version 18 is End of Life (EOL). Therefore, several security and service-reliability guarantees, including 3CX SMTP, Remote Provisioning Service (RPS) and the Automatic Global IP Blacklist, will no longer receive updates or maintenance. Customers remaining on V18 should take note of the following upcomi [...]
Register now to find out what’s new. With V20 Update 8 Final now released, we’re hosting a webinar to walk you through the key additions and improvements included in this update. Join us for a focused session covering the most important features, including: 3CX AI Agents New Boss-Secretary call handling mode On-Prem Transcription Departmental Phonebooks We’ll also highlight oth [...]
For V20 U4-U7 users free transcription beta will be discontinued on Monday. As per our earlier blog announcement, 3CX Cloud Transcription for Update 7 and earlier will be discontinued approximately one month after Update 8 Final, ensuring a clean transition to the new transcription architecture. As we reach this milestone next week, from Monday March 9 onwards, if you’re on V20 [...]
We’ve made 3CX SMB even easier to access by streamlining how it’s managed. SMB is designed to be an easy-to-use solution and we want our user experience to reflect that simplicity. We’re removing unnecessary steps and making the overall experience more straightforward by consolidating management within the Admin Console. This blog answers 3CX Community questions explaining what [...]
Security is not optional and when it comes to VoIP systems, prevention is everything. Some of our most popular blogs on call fraud, scam calls and PBX security have now been fully updated to reflect the latest 3CX V20. These guides have helped many businesses to understand: How call fraud happens How to prevent toll fraud How to block spam and scam calls How to configure their [...]
The market is changing faster than many partners realize. Telephony is no longer a differentiating technology. It has become infrastructure - just like electricity, internet, or WiFi. Customers expect it to work. Period. In our previous blog, we described how the traditional PBX is evolving into an AI-driven communications platform. But when the platform evolves, something else [...]
Secure your Windows Servers' outbound connections. Configure your Windows Server to use more secure ciphers and protocols for outbound HTTPS connections. If your Windows Server is kept at default TLS client settings, it can prefer to initiate TLS1.0 client connections instead of TLS1.3. Why is TLS1.0 Insecure? This matters because TLS1.0 can negotiate protocols that are conside [...]
Restoring encrypted connectivity after an auto-renewal failure. For all 3CX-provided FQDNs, SSL certificates are configured to be automatically updated. This ensures that your 3CX remains secure, auto-renewing well before expiry. However, if for some reason your 3CX system is unable to reach out to trigger and complete the auto-renewal, you will have to force the renewal. Follo [...]
How business communication is really changing in 2026. For many years, business telephony was little more than a basic utility. It worked — or it didn’t. Calls came in, were forwarded, ended up in a queue or voicemail. Functional, but passive. That era is over. With the rise of AI, communication is shifting from a reactive infrastructure to an active participant in business pro [...]
Background information for configuring SSL Certificate files correctly. We regularly see questions about error messages relating to SSL certificate issues - typically that your certificate is not trusted. In most cases, the root cause is that the certificate file contains only your server's certificate. Keeping your Certificate Safe When you receive your certificate files, you [...]
Copyright © 2026