Via @Delimiter (whose commentary is unrelated to this post but noteworthly).
In brief, “metadata” as defined by AG in the context of this video is defined as the:
- “name” of the (ISP’s) customer and;
- The duration of their connection i.e. start and end time and associated days/dates.
Therefore, the destination IP/endpoint is excluded from the above i.e. the “receiver” of the phone call if considered under the context of TIA.