The Gevey SIM doesn't seem to be putting 001 in front of the number...it's just that the numbers come in differently if it's a call or an SMS. I think I probably need to edit the UIDefaultFormats.phoneformat to tell the phone that EITHER:
A number with +852 and then eight digits should be considered as only the eight digits, ignoring the +852.
A number without +852 that is eight digits should have +852 in front of it.
Depending on which of those could be set up i'd have to change the number for my contact, including or excluding +852.
When I made the change to UIMobileCountryCodes.plist should I also have changed PhoneNumberTemplates.plist to include something about the 001?