Distinctive Ringing for Internal Extensions with 3CX and Yealink
A customer using 3CX v.15 with Yealink T42S phones would like calls from internal extensions to have a distinctive ring.
Disable SIP ALG on Tomato Shibby
A PBX vendor like 3CX may tell you to disable SIP ALG on your router. I’m running Tomato on my router, specifically Tomato Firmware 1.28.0000 MIPSR2-132 K26 Max. With the …
3CX SBC Invalid signature received: 0x10317
I’m using 3CX Session Border Controller (SBC) 15.0.56341 to connect to a 3CX v15 SP4 server running on Server 2012 R2 in the cloud. Usually it works fine. A couple …
3CX 15 Tunnel Not Listening
TL;DR If your 3CXPhone app and/or your desktop phone are not able to connect to a remote 3CX server, test connectivity to the server on 3CX tunnel port 5090. If …
3CX 15 Upgrade Notes and Gotchas
I’m doing a test upgrade on a local Windows 2008 R2 server from 3CX 14 to 3CX 15. A few notes and gotchas for future reference. Read these before uninstalling …
3CX Modifies Windows Hosts File
A Windows Server 2012R2 Essentials machine was returning strange results when I did a DNS query from PowerShell. I traced it back to modifications that 3CX version 14 had made …
Outbound Calls Busy through 3CX Session Border Controller
I am running 3CX 14 stand-alone on a cloud-based server with a fixed IP. At my location, I have installed the Session Border Controller (SBC), also v14, on a local …
3CX Custom Provisioning Templates
If you want to provision unsupported phones to use with 3CX, you may come across this article on the 3CX web site: Provisioning unsupported IP phones. It looks quite helpful …
MCB GoldLink to 3CX Now Compatible with 3CX 14
MCB Systems is pleased to announced that its CRM telephony integration product, MCB GoldLink to 3CX, is now compatible with the latest 3CX version 14. 3CX 14 uses a new …
3CX 11 Fails to Start after Build 30295 Update
Today I installed 3CX version 11 with SP4 on a new, virtualized Windows Server 2008 R2 x64. The installer downloaded and installed the Visual C++ 2010 SP1 x64 redistributable. The …