Using SPAN Port Mirroring for Wireshark VoIP Troubleshooting

Using SPAN Port Mirroring for Wireshark VoIP Troubleshooting

When I encounter a problem on a VoIP network that needs troubleshooting, I just wish that I had microscopic X-ray vision, like a superhero who is able to peer into the subatomic level of things.
It would be so advantageous to be able to instantaneously see what is going on with transmissions on the network.
When you experience voice quality issues, one way or choppy voice, or call setup problems, it would be great to be able to see, are the voice packets arriving? How are they arriving?
What kind of signaling is getting through and what is being blocked and where?
These are questions I wish I had instant access to, and this is what port mirroring is all about.

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