With your permission, a Cheann Comhairle, I propose to take Questions Nos. 54, 55, 56 together.
As dialled telephone calls are worked by automatic processes, it is not possible to say how the difficulties referred to by the Deputy occurred, but it is likely that they were caused either by temporary congestion or by a fault in some part of the equipment.
An exchange supervisor assisting a caller would have access to equipment other than that available to the caller.
There is a continuous process of routine testing and maintenance at automatic exchanges and improvement, replacement and extension of equipment are carried out as required.