So Im looking into setting up a super-simple phone system, and Im wondering why I cant manage to find even the most basic list of what Im going to need. Theres no mention of hardware that seems completely obvious to me, and I dont understand what that hardware is, exactly, without someone saying “you need a BLAH to get connected to your major telco.” Also, I dont know what SIP is.

Looks like Im playing outside my field on this one. What else is new?