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For FreePBX versions 2.5 or newer, we have a simple module included in FreePBX called "SIPStation," which makes setting up your trunks a breeze. You can view this wiki on how to use the SIPStation module.
Where can I get manual configuration instructions for other PBXs and Devices
What network ports do I need to forward to my PBX in order to use my SIPStation service?
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