Does freepbx have a user portal
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So with most phone systems you get an admin portal (this is normal) does freepbx have a user portal that is accessible to perform call forwarding etc?
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Yes
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The new version in FreePBX 14 looks much nicer than the old one, but it sucks to set up. They are supposed to add a default layout sometime.
https://pbx.domain.com/ucp
Call forwarding specifically:

A fuller view:

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You can also no longer place calls from it. That is now a feature request.