Operators don't want to remember more codes. With everyone having to have a unique code I have to keep an excel spreadsheet for all of my clients to tell them their codes when they forget. It would be simple if you could just use the last 4 digits of their phone numbers but that won't work because you can't start with a 0... I don't even find a need for an authorization code at all and it would be nice to be able to disable it all together but a compromise would be allowing a single global authorization code for each of my clients. I am not worried about security with phone calls 99% of the time for my applications
