Gayan, scanModem reports that it did not find a PCI modem among the devices: A candidate modem is not transparent among the PCI devices: ------------------------------------------------ 00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller 00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] 00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0) 00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) 01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15) ------------------------------------------------ with USB, bridge, and RAM devices not displayed. If a High Definition Audio card is present, if might be hosted on the Subsystem. If your modem is an external USB type, connected by an external serial cable, or mounted internally on an ISA card, then scanModem would not access it. Try with Root permission $ sudo wvdialconf /etc/wvdial.conf to detect these modem types and some USB modems. If the detection is successful, read the DOCs/wvdial.txt . Edit the /etc/wvdial.conf with Root permission: sudo gedit /etc/wvdial.conf will be able to dial out with Root permission: sudo wvdial Regards, Antonio On Mon, May 17, 2010 at 8:12 AM, Gayan Madushan <madushan.gayan@xxxxxxxxx> wrote: > >