‘Contact the router’ is better stated as ‘our data or packets get sent to the router.’ That intervening router pushes the data out through its interface or interfaces to get closer to its destination or destinations. Actually, it would only be ‘interface’ because Dante is not designed to allow forwarding of multicast addressed packets beyond the subnet in which the multicast data originates.
When a detailed explanation leaves you with far more questions then you had prior to watching it…
A router doesn’t translate anything. A router knows the direction data should take through its interfaces to get data closer to its destination or destinations.
We start by dialing that IP address. When you dial a phone number it sets up the session so it is not too great of an analogy in my opinion. To proceed further and be specific, we transmit data. This data is sent over the wire in the form of packets. Each packet has that specific address embedded. This address is part of the data’s metadata.