asterisk users - Sep 2005 - Italy FastWeb problem: ISDN line crashes every time cisco router turns off

Hi,
I live in Italy and I have an Asterisk 1.0.7 box  with a HFC monoBRI 
card connected to my cisco router which is connected to FastWeb provider:
does anybody knows why every time my cisco router turns off, my 
telephone connection to Fastweb drops (while internet connectior is ok)?
Restarting Asterisk is worth nothing.

TIA

Giorgio

-- 
____________________________________________________________________

GIORGIO INCANTALUPO
Tel. +39 02 9350 4780 (104)

FG&A Software
20017 Rho - Via Puccini, 8

E-Mail :
gincantalupo@fgasoftware.com
Internet:
http://www.fgasoftware.com

Giorgio Incantalupo ha scritto:
> I live in Italy and I have an Asterisk 1.0.7 box  with a HFC monoBRI 
> card connected to my cisco router which is connected to FastWeb provider:
> does anybody knows why every time my cisco router turns off, my 
> telephone connection to Fastweb drops (while internet connectior is ok)?
> Restarting Asterisk is worth nothing.
Just a guess. In the old asterisk code there's was a dns issue on the 
sip code, so when the dns goes down, the sip stack was unable to work.
You can easy patch the sip ouraddrfor function looking to the new one on 
the current code

Saluti

Sergio