In response to the rudery, I found the following webpage which explains the difference between RJ45 and RJ11 connectors:
When I said "square" that was just my rough description of a rectangle. I'm trying hard to write something that is "not wrong".
RJ45 vs. RJ11: Understanding the Differences and Applications | Cable Matters Blog
Discover the essential differences between RJ45 and RJ11 connectors to enhance your connectivity. Read the article for clear insights and practical tips.
www.cablematters.com