Hello,
Does there exist a reasonably affordable way to sniff traffic from the coax going out of my cable modem?
I ask, since our VoIP provider has given us (and requires that we use) a combination cablemodem / VoIP to "multi-phoneline" blackbox.
This means I have no way of troubleshooting / auditing the VoIP/SIP traffic to or from our provider.
I don't want to troubleshoot RF / layer 0 issues like USD $15K+ docsis RF analyzers can. I just need to dump any valid docsis frames to an Ethernet port.
Any ideas?
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