It will be worse with ACAP since there is no property description. One idea is to add parallel attribute for each phone number to list what it is used for. Two attributes with relation between names. Or metadata for uses of attribute. We could have an attribute name convention for doing this.
Meaning goes with attribute.
Lots of poorly-specified attributes like 'role' and 'title.' Doesn't want to add to dataset class if specification will change. User-customizable site defaults. Media types carry security warning. Batch files, for example. By default in Internet Explorer everything is considered dangerous.