/tg/ Station 13 - Modules - Types

code/game/objects/effects/bump_teleporter.dm

/obj/effect/bump_teleporterAbstract effect, that when a mob touches it, it will forceMove them to the teleporter-exit point (that matches the ID set map-side).
/obj/effect/bump_teleporter/filteringSubtype that uses do_teleport instead, to leverage any NO_TELEPORT traits that you might need to add in a given map