Some modems, like the G1 do not support UCS2/UTF8. However, we can
still attempt to export some phonebook entries which are probably
going to be simple Latin1 characters (e.g. 411, etc)
Use immediate mode reporting, which means that the individual CPBR
lines are reported up to the core immediately. This has a couple
advantages:
- We do not need to malloc/free a bunch of single variables
and copy them over. Helps performance.
- The lines are not buffered up and given to the plugin in one
shot, instead processing is performed piecemeal. This helps
with keeping memory consumption down to a minimum