VoIP Security: Difference between revisions
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See http://aa.net.uk/kb-telecoms-voip.html for more info, but:
*Allow SIP from our servers to your phones: UDP port 5060 and 2002 from 81.187.30.110 - 81.187.30.119, and 2001:8b0:0:30::5060::/112 if you use IPv6 (we may add more servers in the future, but will be on the above URL when we do)
*Allow RTP from everywhere to your phones: UDP 1024-65535* from everywhere (which also covers SIP above)
*Don't allow access to your phone or servers web configuration pages from the Internet.
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