Industry rumours suggest that chief executive Charles Dunstone will blame the delay on the company's call centres being unable to cope with the high level of public interest in the offer.
Carphone Warehouse is thought to be signing up 2,500 customers a day - 150,000 in eight weeks - since it began offering phone calls and broadband for £21 a month.
There are also believed to be unforeseen technical problems with unbundling the BT local loop, which gave the telco its old monopoly over home phone connections.
IBM and Technical University of Munich team demonstrate how Shor's algorithm, which can't be cracked by conventional computers, can be solved quickly with quantum computing
Hubble Space Telescope finds superflares from young red dwarfs could strip away planetary atmosphere
Younger stars are 100 to 1,000 times more energetic than when they're older
Two of the big four supermarkets will use the system to control sales of restricted products
PUBG news and updates: November's Update #23 to bring new Skorpion pistol and changes to blue zone visibility
Genuinely useful side-arm coming to PUBG in Update #23