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Lock Down Inbound SIP connections to ONLY Simon Tech

Hi all,

I'm a NOOB to this type of SIP trucking and want to be able to ONLY ALLOW inbound SIP traffic to ONLY Simon Technologies. I cant see anyone not locking it down but nothing in forums about source IP Addresses for Simon Tech


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If you are not using DNS_SRV records this is a bad idea. This depends much on your device

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