Calls back on 45,000 Wrexham and Flintshire phone lines
Telephone services in parts of Wrexham and Flintshire are back to normal after a fault disrupted calls for thousands of customers for more than three hours.
The 999 emergency service was also hit by the fault, which was caused by a blown fuse at the Wrexham exchange.
Police and other emergency services were asked to use contingency plans.
Up to 45,000 customers were affected when the fault began at 1120 BST, but BT said services were fully restored by shortly before 1430 BST.
A BT spokesman said: "We'd like to apologise to customers who were affected by these breaks in service."
The firm said the fault affected customers in the north of Wrexham, Mold, Ruabon and surrounding areas.