Communications watchdog Ofcom has put forward proposals that will see 0800 numbers becoming free on mobile phones.
Currently mobile users can pay up to 40p a minute to call the toll-free standard, but the new proposals seem set to scrap that.
Under the proposals, Ofcom has also called for more transparency over the prices of calling 118 and non-geographic business numbers, with "clearer marketing and advertising" requested, whereby customers will be informed when they take out network contracts of exactly what they'll be expected to pay.
Ofcom has also appealed for businesses to take advantage of the 03 geographic code, that was introduced in 2007, which is on the same price structure as standard 01 and 02 landlines.
Ed Richards, chief executive of Ofcom, said: "There is clear evidence of widespread uncertainty and confusion about the cost of calling these numbers. Consumers need to have far more transparency about the price they are going to pay for calls so that they can make more informed choices and so competition can work more effectively.
"Making 0800 free from a mobile and giving people clarity about what they are paying for 118 directory enquiry services will improve transparency, improve competition and enhance trust in these important services".
You can read the full Ofcom consultation (PDF) on its website.
The proposals are based on new powers which will be introduced as a result of revised European telecoms legislation.
We'll keep you posted as to if and when these proposals become a reality.