Further market growth would then depend on the reduction of tariffs as well as the offer of new services, and the growth of business customers, which can best be accelerated by the introduction of competition and therefore would not justify any additional implementation period.
... in reply to the Portuguese authorities' argument that mobile operators will reduce Portugal Telecom's international traffic, that it is highly unlikely that users (most of whom are business users) will use their GSM in place of the PSTN for international calls ...