What you can achieve in your story is not going to be based on known physics.
Star Trek teleporters are a perfect example of hand-waving for achieving the desired outcome of teleportation.
So, consider using this for you plausible-sounding teleportation mechanism. Using an exotic super-cooled fluid (or ultra-hot plasma, or whatever else you prefer), assume that quantum fluctuations within the fluid are found to make a generous quantity of sub-microscopic worm-holes. You discovered a way to manipulate these wormholes, and grow them into stable macroscopic wormholes that will be traversable without killing the humans using the wormholes.
The other end of the wormhole will be one of the one billions and billions of microscopic wormholes leftover from the big bang that we never detected before your new breakthrough technology.
Dress it up with some fancy sounding pseudo-physics and tell your story.
You can choose whether you need a remote chamber (or whatever form of jump booster is needed) to detect and manipulate the remote holes, or do you need a remote chamber to create a batch of wormwhole-laden substrate for the target of your teleport. Or maybe the remote chamber just is needed for longer-jumps with the limitation of fixed jumppoints, it's all up to you.
Safety - it's as safe as you want it to be. Maybe high power and high precision equipment improves the reliability of the jump. Minimal power being cheap but flakey, suitable for transport of bulk goods or desperate people without access to the high-precision, high power equipment needed for near 100% success.
Maybe jammers could interfere with the sensing equipment needed to control the remote jump-points.
Pretend your technology has figured out a way to create entangled wormholes without having to have them local to each other initially and you have a nice-hand-wavium way to link a pair of holes that suits your purposes - I suggest using a tachyon carrier wave to link the pair so that pesky lightspeed does not interfere with your sweet ride.
If you don't like remote control of jump points, just drop a miniaturized and hardened jump receiver into your ships EM canon, and shoot the receiver to the planets surface in preparation for jumping.
Like Star Trek, you can change the rules when it suits you to make the solution more or less powerful. Just don't annoy your audience by making the changes interfere with telling a entertaining and plausible story. Your audience is willing to suspend disbelief, that's the way most SF works.