wvdial拨号错误The PPP daemon has died: PPP negotiation failed (exit code =

nettui

[root@EmbedSky /]# wvdial
--> WvDial: Internet dialer version 1.56 (root@EmbedSky)
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Sending: AT+CGDCONT=1,"IP","CMNET"
AT+CGDCONT=1,"IP","CMNET"
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT 7200000
--> Carrier detected.  Starting PPP immediately.
--> Starting pppd at Thu Jan  1 00:17:33 1970
--> Pid of pppd: 317
--> pppd: x鯷01]
--> Using interface ppp0
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
--> pppd: x鯷01]
netconsole: network logging stopped, interface ppp0 unregistered
--> Disconnecting at Thu Jan  1 00:18:03 1970
--> The PPP daemon has died: PPP negotiation failed (exit code = 10)
--> man pppd explains pppd error codes in more detail.
--> I guess that's it for now, exiting
--> The PPP daemon has died. (exit code = 10)pppd错误码  
10 PPP连接错误，也就是说在建立PPP连接中所有可用网络协议都不可到达。
这是什么原因啊？是联通公司的原因还是我的原因，该跟么解决呢，求高手详细帮助！

nettui

然后我换成直接用PPPD拨号，打印消息如下：
[root@EmbedSky peers]# pppd call wcdma

pppd options in effect:
debug debug             # (from /etc/ppp/peers/wcdma)
nodetach                # (from /etc/ppp/peers/wcdma)
dump            # (from /etc/ppp/peers/wcdma)
noauth          # (from /etc/ppp/peers/wcdma)
user card               # (from /etc/ppp/peers/wcdma)
password ??????         # (from /etc/ppp/peers/wcdma)
remotename 3gppp                # (from /etc/ppp/peers/wcdma)
/dev/ttyUSB1            # (from /etc/ppp/peers/wcdma)
115200          # (from /etc/ppp/peers/wcdma)
connect /usr/sbin/chat -s -v -f /etc/ppp/peers/chat-wcdma-connect               # (from /etc/ppp/peers/wcdma)
nocrtscts               # (from /etc/ppp/peers/wcdma)
local           # (from /etc/ppp/peers/wcdma)
hide-password           # (from /etc/ppp/peers/wcdma)
novj            # (from /etc/ppp/peers/wcdma)
novjccomp               # (from /etc/ppp/peers/wcdma)
ipcp-accept-local               # (from /etc/ppp/peers/wcdma)
ipcp-accept-remote              # (from /etc/ppp/peers/wcdma)
ipparam 3gppp           # (from /etc/ppp/peers/wcdma)
noipdefault             # (from /etc/ppp/peers/wcdma)
defaultroute            # (from /etc/ppp/peers/wcdma)
usepeerdns              # (from /etc/ppp/peers/wcdma)
noccp           # (from /etc/ppp/peers/wcdma)
abort on (NO CARRIER)
abort on (ERROR)
abort on (NO DIALTONE)
abort on (BUSY)
abort on (NO ANSWER)
send (/rAT^M)
expect (OK)
AT^M^M
OK
-- got it

send (/rATZ^M)
expect (OK)
^M
ATZ^M^M
OK
-- got it

send (/rAT+CGDCONT=1,"IP","3gnet",,0,0^M)
expect (OK)
^M
AT+CGDCONT=1,"IP","3gnet",,0,0^M^M
OK
-- got it

send (ATDT*99#^M)
expect (CONNECT)
^M
ATDT*99#^M^M
CONNECT
-- got it

send (/d/c^M)
Script /usr/sbin/chat -s -v -f /etc/ppp/peers/chat-wcdma-connect finished (pid 386), status = 0x0
Serial connection established.
using channel 4
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB1
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xea2eb38> <pcomp> <accomp>]
LCP: timeout sending Config-Requests
Connection terminated.
netconsole: network logging stopped, interface ppp0 unregistered
Modem hangup

求高手指教啊

nettui

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