OBS_VALUE: <ul><li><a href=http://www.legislation.gov.uk/ukpga/2003/21/contents target=_blank>Communications Act(Communications Act 2003, last updated in December 2017, s. 45, 74)</a></li><li><a href=https://www.ofcom.org.uk/ target=_blank>OFCOM website</a></li><li><a href=https://www.ofcom.org.uk/__data/assets/pdf_file/0020/108353/final-statement-narrowband-market-review.pdf target=_blank>Wholesale Voice Markets Review 2021-26(Last updated in June 2014)</a></li></ul>