Telecoms firm, which manages 999 phone system, says it will publish findings of own inquiry on Thursday
The communications watchdog has launched an investigation into BT after technical faults hit the 999 emergency call service on Sunday.
Ofcom said it would look into the incident to find out whether the telecoms company failed to comply with its regulatory duties. Police forces, ambulance services and fire and rescue services across the UK asked people not to phone 999 on Sunday morning due to a “technical fault”.
