The minimum call out fee is $69.00 (including GST) for a visit from a telecommunications technician where you know the cause of the problem. Where you require the telecommunications technician to investigate the cause of the problem and to repair the cause once found, you will be charged a Diagnostic fee which is $139.45 (including GST). In either case any work required would incur labour charges at $25.30 (including GST) per 15 minutes for residential customers, plus the cost of any materials.