If you're reasonably certain that the party you're calling should be answering the phone then a line fault may be the cause. Check your own line first to ensure it's working properly before reporting a fault on another person's line.
The number I'm calling is permanently engaged. Could this be due to a fault?
Related Articles
Phone line fault FAQs
From reporting the initial fault to diverting your calls to tracking your claim, our extensive how-to page will provide you with helpful information to guide you through the process of reporting and fixing a phone line fault in no time.
Report a fault with your BT Business phone line, broadband or email
Whether you have a fault with your BT phone, broadband or email, we're here to help. Find a solution online or discover how to report a problem to BT Business and we'll find a fix as soon as possible.
How to track a fault online with BT Business
Reported a fault with your BT Business service? Track it online to find out how it’s progressing, check or amend any engineer appointments, and more.