How do you block caller id per call on telstra?
Have tried 0197 and 197 and all I get is overloaded continous beep noises, it use to work where it would go beep, beep and then the normal dial out tone.
Only thing I could find on their web site said that 0197 should work, or 197 if toll bar.
http://www.telstraclear.co.nz/residential/homeplan/phone-line/features/number-block.cfm