At the moment it is just a rumor, but confirmed it could be quite interesting panorama, and is as it says, Telstra could put calls free between customers. The cost would be only that of the establishment of call, 12 cents, but the price of the minutes would be free.
At the moment there is no other company that offers this, since all charge a fee per minute, by which the movement of Telstra would be quite novel in Spain, not in other countries where it has already applied this tariff.
According to the rumor, this would start to announce tomorrow, November 1, so it remains to be seen if it is confirmed or not. If they put up up my Yoigo the avalanche of customers can be important.