BT has stressed its commitment to following Ofcom's revised Code of Practice.
Earlier this year, the watchdog unveiled a voluntary code as part of an effort to ensure customers are given clearer and more accurate information on broadband speeds before they enter into a contract.
Signatories are also committed to making it easy for customers to exit a contract if broadband speeds fall below a minimum guaranteed level.
Speaking to the Daily Star, a BT spokesman said the firm agrees with Ofcom that it is "important to give customers the right information before they choose their broadband".
"We fully comply with the updated Code of Practice," the BT representative said.
"We give customers personalised speed range estimates for copper and fibre broadband before they decide to buy."
The spokesman also stated that BT will take steps to make it easier for people to leave their contracts if they are unhappy with the quality of their broadband service.
"We’ll increase the time new customers have to end their contract without penalty from 90 days to the minimum period of their contract if, after we’ve tried to fix it, they can’t get the minimum speed we guarantee," he said.
This comes after TalkTalk confirmed it signed up to Ofcom's Code of Practice "without hesitation".
Jon Nowell, Head of Product at TalkTalk Business, stated that connectivity is "increasingly the lifeblood of businesses" and said it is committed to "making British businesses better off".