Calls made from a BT landline to the TSO telephone numbers below are charged according to your location and time of call. You can find more details regarding this on the BT Tariff Guide for Residential Customers (opens in new window).
| TSO Department | Telephone Number | Call charge |
| TSO Main Customer Services | +44 (0)333 202 5070 | BT standard rates* |
| TSO eSupport | +44 (0)333 200 2425 | BT standard rates* |
| TSO CAA | +44 (0)333 200 2412 | BT standard rates* |
| TSO Textfone | +44 (0)333 202 5077 | BT standard rates* |
*Charges for calls made from landlines supplied by other service providers and mobile phones will vary - please contact your service provider for more information.
Please note, to maintain a quality service we may record calls for training purposes.