BT Wholesale and Ventures was a division of United Kingdom telecommunications company BT Group that provided voice, broadband, data, hosted communication, managed network and IT services to communications providers (CPs) in Great Britain.

[citation needed] The IPstream product covers the transport of data between the end-user's premises and an interconnect point of the ISPs choice, such as their main colocation facility, which is served by one or more links called BT Centrals.

[citation needed] BT Wholesale pays Openreach for access to the local loop and the exchange.

The alternative to IPStream is local-loop unbundling, in which the ISP obtains these facilities from Openreach directly, and makes its own arrangements for onward carriage of the data stream.

[citation needed] Similar services are offered in other countries where there is a single dominant telecommunications provider, such as wholesale DSL from Telstra in Australia.