I can smile now.  I made my * work with my Cisco. Finally.  First problem was Ethernet on my Linux.  After installing * on a different machine, I got rid of that "icmp udp unreachable" error.  My next problem was the call stays on on Cisco gateway, but the ATA drops it.  I figured out it was my mistake on dialplan in extensions.conf --- (it took me a day to notice it.. damn!).  my config was: exten=>_.,1,Dial(SIP/[EMAIL PROTECTED],tr).  The reason why my ATA is getting fast busy (or dropping the call immediately) while Cisco gateway (myprovider) is trying to connect my call, was that I am missing the "seconds" parameter.  When I changed this to Dial(SIP/[EMAIL PROTECTED],20,tr), I was able to connect. 
 
There is one little problem left though.  How come after I diale the number from ATA, I am getting false ringback.  I meant, local ringback from ATA, instead of the ringback coming from my Cisco (myprovider).
 
I appreciate any bright ideas and advise from anybody.
 
Thank you and have a happy weekend!

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