Well asfar i have intalled the latest version of asterisk from CVS. I have configured the asterisk to load the i4l module and from CLI interface I can see that the module is loaded. I made up an extention to make outgoing calls by using as prefix the digit 9 but when I try to make an outgoing call I see in the messages log file the following message: Mar 17 13:41:34 WARNING[27663]: File chan_modem_i4l.c, Line 355 (i4l_read): Device '/dev/ttyI0' lacking dialtone How can I make it work. Is there any docs describing the usage of i4l with asterisk ?