[HELP] Useing EUMEX 501 PC USB with ASTERISK

Hi gays,
I need assistance about setting Asteerisk to use EuMEX 501 for outgoing calls. Which drivers and how to set the hole stuff (I found EUMEX.soursforge.net’s and ISDN4Linux’s drivers…)
A was trying to find here something about this case, but unfortunately I found a lot of information that was too complex for begginner like me…
Ok, probably the subject of this topic is very complecated, but it is very interesting for many of us too, because this devices (and others from Eumex series) are very popular!
Regarding to this I’d like kindly to ask every body that has an effort in setting up Asterisk with ISDN lines and devices to share it here.

thanks in advance!