Calls & Lines from THUS is designed to offer businesses of every size easy-to-access call savings and e-billing services, while retaining your BT telephone lines and telephone numbers. 
The service is ideally suited to small or medium-sized businesses that require highly competitive call costs, coupled with sophisticated call analysis facilities and high-quality voice communications. For larger customers using our Direct Voice service at their main sites/offices, Calls & Lines provides an ideal solution for smaller satellite locations.

Plus, if you need high-speed internet access alongside high-quality voice communications, we offer a range of high-speed internet access solutions under our Demon brand. Click here for more info.

Indirect Voice previously used access codes to route calls away from BT. These (1xxx) codes were either manually dialled by the customer or generated automatically by equipment within the customer’s premises.

Carrier pre selection (CPS) still uses the concept of access codes, but the access codes are implemented at the exchange rather than the customers’ premises.

As the call reaches the exchange, BT’s systems can identify the call, with the aid of the access code, and route it over the relevant operator’s network. These 8xxx codes are administered by Ofcom and are only available to a licensed CPS Operator. CPS is a more effective and efficient way of re-routing calls.