Thats kind of what i was thinking, but Teleport and Dimension Door are conjuration (teleportation) effects and Summon Monster is a conjuration (summoning) effect. To me, it's pretty much the same thing, since you are essentially just teleporting the creature from it's home plane to a designated location within your own. But...I'd really like to know what the official ruling is, to clear up whatever gray area lies between the two types of effects.
