Dahdi configuration after IPBX exploitation

Hi there friends,

I just have a question. An IPBX is used since more than 6 months, but now I realize that the dahdi configuration needs to be rebuilt (for example, /etc/asterisk/chan_dahdi_general.conf is totaly umpty and /etc/asterisk/chan_dahdi.conf just has 22 lines). Do you think that I can rebuild the dahdi configuration now, update everything, without breaking all the configuration?

Thanx for having read.