The ring of transposition says (emphasis mine):
Once per day, the wearer of the ring of transposition can speak a command word to exchange places with the creature wearing the bonded ring, which must be within 800 feet, as though using a dimension door spell against a willing target.
One of the important drawbacks of dimension door is that it stuns the caster immediately upon arrival:
After using this spell, you can’t take any other actions until your next turn.
Does the ring's wording mean that this effect is included, or does it only mimic the teleportation effect of dimension door?