Direct Answer • Key Takeaway
Warning – Don't Plug an Rj11 Plug into an Rj45 Socket Rj11 Plugs Can Permanently Damage Your Rj45 Socket. .. . It's Easy to Insert an Rj11 Plug into an Rj45 Socket and It Will Probably Work for a Voice Connection If the Other End of the Link Has the Right Wiring or the Correct Adapter.