Address type
Address type is a field that has a specific input requirement.
It is possible to define up to 10 address types. Each address type corresponds with a character: CILOUPQRST. The value in the database is a string containing the characters for the selected address types and a space for the non-selected address types.
Example
For an address with address type 2, 5 and 9, the value is:
<space>I<space><space>U<space><space><space>S<space>
