That's what he thought - he's an ex-Bell Labs engineer with multiple patents on modems. But I'm certainly not using satellite and neither is he. Something odd about the connection between us, as I have not had this issue with other calls. I tried calling him and the delay was still there.

Other call IDs are cea203ef-b548c7c0@192.168.1.179 and 6a03da09-9903-122d-f39a-003048c64e50