The withdrawal of Wholesale Line Rental (WLR) products and the transition to IP Voice services
BT is modernising the way it delivers telephone services to the UK. The PSTN (Public Switched Telephone Network) is ageing and will reach the end of its life in December 2025. New digital technologies are taking its place, which means over 16 million lines and channels will need to move to alternative products before the network is switched off.
The PSTN currently supports wholesale products like WLR3 analogue, ISDN 2, ISDN 30, LLU SMPF, SLU SMPF, Narrowband Line Share and Classic products. These products, collectively referred to as WLR products in the industry consultation, deliver analogue voice and broadband communications for home and businesses. When the PSTN closes, these products will no longer be available.