I really like 3CX, it’s a great phone system with awesome mobile and desktop apps. Recently I had a weird issue when I setup the click to call functionality in windows to the desktop client. When I would try to dial contacts or numbers from the web, they would fail. I realised that it must be something to do with the numbers having +61. After a bit of looking, I found a simple fix.
- Log into 3CX and select “settings” from the menu.
- Select the “E164 Processing” option in the bottom left corner
- Make sure “Process E164 Numbers” and “Remove if same country” are selected. Now the option that wasn’t set for me is the “Add Prefix”. From what I can gather, when 3CX was stripping the +61, it wasn’t adding a 0 to the start of the number, meaning it was rejected by my trunk. Simply add a 0 in the “Add Prefix”. This way rather than +61490000000 becoming 490000000 which is in valid, it will instead become 0490000000 – a correctly formatted mobile number. The same goes for any Australian number.
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