Syncronization with existing roundcube (mysql) addressbooks with kolab-syncroton

[taki]

Hello!

I just want to try the kolab-syncroton server with my already installed 
roundcube 0.9-rc2 with mysql as addressbook backend. I have dovecot IMAP 
server with mysql database as userdb. Is there any solution to use them 
or I have to use an LDAP database to store imap userdb and addressbook?

Thanks:
Sandor Takacs