关于使用modem(56K)拨号上网问题

mananaddd

参照相关文章配置之后，log信息如下

Jan 29 21:24:49 liudong pppd[4568]: pppd 2.4.1 started by root, uid 0
Jan 29 21:24:51 liudong chat[4569]: timeout set to 3 seconds
Jan 29 21:24:51 liudong chat[4569]: abort on (\nBUSY\r)
Jan 29 21:24:51 liudong chat[4569]: abort on (\nNO ANSWER\r)
Jan 29 21:24:51 liudong chat[4569]: abort on (\nRINGING\r\n\r\nRINGING\r)
Jan 29 21:24:51 liudong chat[4569]: send (rAT^M)
Jan 29 21:24:51 liudong chat[4569]: expect (OK)
Jan 29 21:24:51 liudong chat[4569]: rAT^M^M
Jan 29 21:24:51 liudong chat[4569]: OK
Jan 29 21:24:51 liudong chat[4569]:-- got it
Jan 29 21:24:51 liudong chat[4569]: send (ATH0^M)
Jan 29 21:24:51 liudong chat[4569]: timeout set to 30 seconds
Jan 29 21:24:51 liudong chat[4569]: expect (OK)
Jan 29 21:24:51 liudong chat[4569]: ^M
Jan 29 21:24:51 liudong chat[4569]: ATH0^M^M
Jan 29 21:24:51 liudong chat[4569]: OK
Jan 29 21:24:51 liudong chat[4569]:-- got it
Jan 29 21:24:51 liudong chat[4569]: send (ATDT9-16300^M)
Jan 29 21:24:51 liudong chat[4569]: expect (CONNECT)
Jan 29 21:24:51 liudong chat[4569]: ^M
Jan 29 21:25:10 liudong chat[4569]: ATDT9-16300^M^M
Jan 29 21:25:10 liudong chat[4569]: CONNECT
Jan 29 21:25:10 liudong chat[4569]:-- got it
Jan 29 21:25:10 liudong chat[4569]: send (^M)
Jan 29 21:25:10 liudong chat[4569]: expect (sername
Jan 29 21:25:10 liudong chat[4569]:38400^M
Jan 29 21:25:10 liudong chat[4569]: ^M
Jan 29 21:25:11 liudong chat[4569]: ^M
Jan 29 21:25:11 liudong chat[4569]: *********************************^M
Jan 29 21:25:11 liudong chat[4569]: * Quidway A8010 Internet Server *^M
Jan 29 21:25:11 liudong chat[4569]: * welcome!! *^M
Jan 29 21:25:11 liudong chat[4569]: *********************************^M
Jan 29 21:25:11 liudong chat[4569]: please input username:
Jan 29 21:25:11 liudong chat[4569]:-- got it
Jan 29 21:25:11 liudong chat[4569]: send (assword:16300^M)
Jan 29 21:25:12 liudong pppd[4568]: Serial connection established.
Jan 29 21:25:12 liudong pppd[4568]: Using interface ppp0
Jan 29 21:25:12 liudong pppd[4568]: Connect: ppp0 <--> /dev/ttyS0
Jan 29 21:25:12 liudong /etc/hotplug/net.agent: assuming ppp0 is already up
Jan 29 21:25:43 liudong pppd[4568]: LCP: timeout sending Config-Requests
Jan 29 21:25:43 liudong pppd[4568]: Connection terminated.
Jan 29 21:25:43 liudong /etc/hotplug/net.agent: NET unregister event not supported
Jan 29 21:25:43 liudong pppd[4568]: Hangup (SIGHUP)
Jan 29 21:25:43 liudong pppd[4568]: Exit.

有人说LCP: timeout sending Config-Requests说明是在发送配置请求时超时，问题出现
在对方（电信）。需要联系电信解决。
不知道是不是这么回事？
多谢大家！