callmonitor:
 * use phonebook-tools to read the phone book - this is expected to fix phone book reading for firmwares >= 05.50 (note: allcfgconv without -c is another problem and is NOT addressed by this commit)
 * EXPERIMENTAL: please provide feedback/bug reports in #2473
 * refs #2473


git-svn-id: file:///var/svn/freetz/trunk@12165 149334a1-2f27-0410-a3b9-fc62619ac1e6