A mast sharing agreement between O2 and Vodafone is set to be completed by the end of 2017.
Now two years after its initial promised completion date, Project Beacon saw 18,000 network masts combined into a single grid - boosting population cover to 97 per cent (1 per cent shy of its original target).
Now running two years behind it's original 2015 completion date, Project Beacon has seen more than 400 base stations upgraded monthly following a £2 million investment.
According to the networks dropped call rates have fallen from 0.67 per cent to 0.47 per cent. This drops to 0.09 per cent in cities such as London, which it claims is better than Hong Kong and Tokyo.
Vodafone UK head of networks Kye Prigg has commented on the mast sharing project saying, "We are now 79 per cent complete. More than 400 base stations are upgraded monthly, which means we have a brand new network compared to the likes of EE and Three who have quite an old one.
"We expect Beacon to be completed by the end of this financial year in December. There will be a few sites left over, which include remote areas because it’s hard to bring fibre to them. We are working on those, but we expect Beacon to be more than 99.9 per cent finished by the end of the year."