- Joined
- Oct 4, 2025
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Hello
Having registered a free hosted 3CX instance, i came upon some trouble with adding a SIP Trunk.
My VoIP / SIP Provider is in Belgium namely Proximus.
They are on the list of preferred / supported providers but i can't seem to select them in the dropdown menu:

I tried adding a trunk under a different provider but it wont register with the settings i filled in.
Is there something i'm missing that i can't select or find the Proximus trunk ?
Having registered a free hosted 3CX instance, i came upon some trouble with adding a SIP Trunk.
My VoIP / SIP Provider is in Belgium namely Proximus.
They are on the list of preferred / supported providers but i can't seem to select them in the dropdown menu:

I tried adding a trunk under a different provider but it wont register with the settings i filled in.
Is there something i'm missing that i can't select or find the Proximus trunk ?