Skip to main content
Business Broadband Code of Practice how we test our speeds | BT Business

Ofcom’s Voluntary Code of Practice on Business Broadband Speeds: how we test our speeds

We conform to the high level testing principles set out in Annex 5 of the Voluntary Code of Practice.

  • We partnered with  SamKnows to provide speed tests from our Business Hubs
  • We've built a test panel across our main products, which is representative of the product base across a range of exchanges, network status and line speeds
  • We run speed tests across approximately 9k business lines and update our results quarterly
  • The tests are scheduled to run throughout the day, with the business 'peak time' being 12 noon - 2pm
  • The speed test will not run when more than 160kbps traffic is detected on the line, reducing impact on our customers or negatively impacting results
  • The speed test runs a 3 Thread TCP test to assess the capacity of the Broadband connection
  • We compare the actual throughput result to the sync speed at the time of the test to calculate the normally available and maximum overheads for xDSL products. These are then removed from the relevant sync speed estimates
  • We use the 20th and 80th percentile average speeds of the FTTP test panel to calculate the point of sale speeds for FTTP products
  • Speed tests are measured to test servers located off of the BT network, with no favourable traffic routing applied
Did this help?

Additional support