modem hungup forever

["Micaela Gallerini" <mat.r.gl@gmail.com>]

hi all,
    after the latest update when my internet connection break down, my
modem don't disconnect the port ttys0, infact if I try to connect
again (with pon and poff) there isn't any connection.

I try also to install again ppp, but there is the same problem.

any ideas, please?

my messages/syslog  log:

Jan 11 10:58:48 xxx kernel: PPP generic driver version 2.4.2
Jan 11 10:58:48 xxx pppd[3461]: pppd 2.4.4 started by root, uid 0
Jan 11 10:58:49 xxx chat[3464]: abort on (BUSY)
Jan 11 10:58:49 xxx chat[3464]: abort on (NO CARRIER)
Jan 11 10:58:49 xxx chat[3464]: abort on (VOICE)
Jan 11 10:58:49 xxx chat[3464]: abort on (NO DIALTONE)
Jan 11 10:58:49 xxx chat[3464]: abort on (NO DIAL TONE)
Jan 11 10:58:49 xxx chat[3464]: abort on (NO ANSWER)
Jan 11 10:58:49 xxx chat[3464]: abort on (DELAYED)
Jan 11 10:58:49 xxx chat[3464]: send (ATZ^M)
Jan 11 10:58:49 xxx chat[3464]: expect (OK)
Jan 11 10:58:49 xxx chat[3464]: ATZ^M^M


--
"In internet il saper leggere è uguale al saper ascoltare nella
realtà, chi sa ascoltare possiede le chiavi di molte porte"
Rashna
Micaela Gallerini