Timur, Thanks for the partial success report . It is important to know thatmodification of hda-codec was not necessary. Please respond torequest from Zsolt BÉRCZES, zsolt@xxxxxxxx send the outputs of:$ find /proc/asound/ -type f -exec grep . -H {} \;and$ lspci -vv Do read through Jacques PostInstall Howto at http://linmodems.technion.ac.il Jacques, You are much more expert on these Line issues. Any suggestions Below I'm summarizing your cogent System features for easy future reference MarvS--------------Ubuntu kernel 2.7.27-7-genericwith HDA cardNAME="Audio device: Intel Corporation 82801H "CLASS=0403PCIDEV=8086:284bSUBSYS=103c:3618CHIP=0x11c11040 00-00: AD198x Analog : AD198x Analog : playback 1 : capture 1with modem codecCodec: LSI ID 1040Address: 1Vendor Id: 0x11c11040 2008/12/21 Timur Irmatov <irmatov@xxxxxxxxx>:> Hi, Marvin,>> On Sun, Dec 21, 2008 at 7:22 AM, Marvin Stodolsky> <marvin.stodolsky@xxxxxxxxx> wrote:>> An installation process is described below, culminating in>> installation of agrmodem.ko + agrserial.ko under a Ubuntu kernel>> 2.6.27-7-generic. The drivers could also be tested for other Agere>> chipset modems 11c1:0620 and 11c1:048c/f>> I have followed these installation steps. After that, both modules> load fine, and I can access my modem with minicom. I have configured> pppd, and it even works, even with callback! :) But! I try to ping the> other side of PPP link, and it starts normally, with delay around> 150ms. But then I see delays growing for some time, then they return> back to normal just for a couple of seconds, then they grow again (see> attached file). It is not possible to transfer anything from such a> connection.. :(>> I am sure this is not a line conditions, as in Windows dialup works> good. Tried to reconnect several times, same result. I don't know if> it matters, but one time I had "no buffer space available" error> during pings, and also laptop hangs completely if I attempt AT&F> command which should load default settings in modem.>> --> Timur Irmatov, xmpp:irmatov@xxxxxxxxx>