Odpojeni modemu po cca 30s - LCP: timeout sending Config-Request

[Marek Kubesa]

Mám problém s používáním externího modemu 3com US Robotics 56k Voice 
Faxmodem.
Po 30 sekundách se automaticky odpojí.
Pro vytáčení jsem zkoušel wvdial na Fedora C1 se stejným nastavením jaké 
jsme používal dříve pro ISA modem a ten fungoval bez jakéhokoliv 
nastavení. Zkoušel jsem nově generovaný wvdial.conf.
Pod win modem funguje dobře.

Poraďte prosím co je třeba nastavit.

Děkuji za pomoc.

Z logu
Apr 17 13:25:16 kubula pppd[861]: pppd 2.4.1 started by root, uid 0
Apr 17 13:25:17 kubula chat[863]: abort on (NO CARIER)
Apr 17 13:25:17 kubula chat[863]: abort on (NO CARIER)
Apr 17 13:25:17 kubula chat[863]: abort on (NO DIALTONE)
Apr 17 13:25:17 kubula chat[863]: abort on (ERROR)
Apr 17 13:25:17 kubula chat[863]: abort on (NO ANSWER)
Apr 17 13:25:17 kubula chat[863]: abort on (BUSY)
Apr 17 13:25:17 kubula chat[863]: timeout set to 5 seconds
Apr 17 13:25:17 kubula chat[863]: send (ATZ^M)
Apr 17 13:25:17 kubula chat[863]: expect (OK)
Apr 17 13:25:17 kubula chat[863]: ATZ^M^M
Apr 17 13:25:17 kubula chat[863]: OK
Apr 17 13:25:17 kubula chat[863]:  -- got it
Apr 17 13:25:17 kubula chat[863]: send (ATXDT971200111^M)
Apr 17 13:25:17 kubula chat[863]: timeout set to 45 seconds
Apr 17 13:25:17 kubula chat[863]: expect (CONNECT)
Apr 17 13:25:17 kubula chat[863]: ^M
Apr 17 13:25:37 kubula chat[863]: ATXDT971200111^M^M
Apr 17 13:25:37 kubula chat[863]: CONNECT
Apr 17 13:25:37 kubula chat[863]:  -- got it
Apr 17 13:25:37 kubula chat[863]: send ()
Apr 17 13:25:37 kubula chat[863]: expect (~)
Apr 17 13:25:37 kubula chat[863]: /ARQ^M
Apr 17 13:25:41 kubula chat[863]: 
`^\^\^\^@`^\`^\^@`^\`^\`^\``^\8|^\8|^\`^\^\|^\`^\`^\^@`^\^\^G^@|`^\^\G|^\^\G|^\8|^\^
\@`|^\^\`G^\8|^\^\|^\8^N|``^?|`^\^\^\
Apr 17 13:25:41 kubula chat[863]: 
^@`^\`^\^@`^\|`^\`^\``^\8|^\8|^\`^\^\|^\`^\`^\^@`^\^\^G^@|`^\^\G|^\^\G|^\8|^\^\@`|^\
^\`G^\8|^\^\|^\8~
Apr 17 13:25:41 kubula chat[863]:  -- got it
Apr 17 13:25:41 kubula chat[863]: send ()
Apr 17 13:25:41 kubula pppd[861]: Serial connection established.
Apr 17 13:25:41 kubula pppd[861]: Using interface ppp0
Apr 17 13:25:41 kubula pppd[861]: Connect: ppp0 <--> /dev/modem
Apr 17 13:26:12 kubula pppd[861]: LCP: timeout sending Config-Requests
Apr 17 13:26:12 kubula pppd[861]: Connection terminated.
Apr 17 13:26:12 kubula pppd[861]: Hangup (SIGHUP)
Apr 17 13:26:12 kubula pppd[861]: Exit.