In the 'old days' we could put a telephone number into a phone's contacts/directory using the full ISD coding, e.g. for a Wellington number it would be something like +6434567890
I've noticed that nowadays, some telco's are saying that the +xx prefix might not work and the full dial-out codes should be used, so for Australia I'd NOT type in +61xxxx, BUT use 0061xxxx
My question is, what format/s do most people do thesedays?



