Hi,
I'm helping one of my friend to setup the modem in the 4520, I just can't make it work, everytime while it registering on the network it appeared with an "Error 720".

The notebook is running winxp and now i start to suspect is it the modem driver's issue, I can't seem to find any XP Driver for the modem, temporarily I'm using the Vista Modem driver provided in the CD