personally i feel teleportation on a small scale - for use in combat - unbalances the game. i will not have that in my game. (but if you like to have it, it's your game, just stating my opinion here).
but i will be allowing large scale teleportation in my world/game. my players do not have attained it yet, and still may need some time, but i am thinking of sponsored magic, and sponsor could be odin, thinking of his lightning gates in changes here, or
legba, lord of the crossroads, or a similar deity/loa/whatever.
and they won't be bothered for a 'port down the block.