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3cx, Fortigate 50B & External SIP Client

Discussion in '3CX Phone System - General' started by brianjg, Nov 4, 2008.

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  1. brianjg

    Nov 4, 2008
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    I'm trying to get an external SIP client (SPA921) to work with my 3cx server over the web. I know a VPN works fine but as its for a mobile users this isn't a workable solution. What ports do I need to open from the firewall for the 3cx to work properly. All other functions are working at this time.
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