Mojtaba, Did you add the line ``Carrier Check = no'' into your file /etc/wvdial.conf ? You are using gnome-ppp? You could first try wvdial from command line and see if you can connect, Please check Jacques' post install recommendations for wvdial and troubleshooting connections. http://linmodems.technion.ac.il/post-install.html Regards, Antonio On Wed, Nov 10, 2010 at 6:48 AM, Mojtaba Zangeneh <mojtaba.zangeneh@xxxxxxxxx> wrote: > Hello > > Tnx for your last advices. > > I configured my modem the way you told me, so I could detect my modem > and dial it. > My modem works well and I've got no problem (it dials the Phone no), > But when it recognizes the provider I dialed, it gives 'No Carrier > Error'. > I use ppp-phone program. Also I unchecked the 'check Carrier', But it > didn't work. > What can I do? > Tnx again >