Ofcom must get tough if it is to eliminate the issue of mis-selling, according to a leading broadband provider.
Entanet has stated that the regulator, which launched a consultation on the issue last month, must do more to ensure any new rules are enforced fully.
The company also backed the suggestion from rival provider BT that a new PIN system could be used to cut levels of mis-selling, which would mean broadband firms have to be told a code held by a customer before any transfer would be agreed.
However, Neil Watson, Entanet's head of operations, said this will not be enough.
"Even the similar MAC process for broadband can and has been abused. There have been cases of slamming reported where the MAC has been fraudulently obtained without the customer's knowledge," he added.
Entanet was established in 1995 and offers services including broadband, leased line, metro Ethernet, co-location and VoIP platforms.