自由之舟骆驼帐篷好吗:关于华为AR－2831系列路由配置拨号的问题！

我是菜鸟，接触路由才2天现在有一个配置请教，程序如下：
#
sysname HTX2831
#
FTP server enable
#
l2tp domain suffix-separator @
#
radius scheme system
#
domain system
#
local-user admin
password cipher htx
service-type telnet terminal
level 3
service-type ftp
#
interface Aux0
async mode flow
#
interface Ethernet0/0
ip address 10.203.160.254 255.255.255.0
#
interface Ethernet0/1
ip address dhcp-alloc
#
interface Serial3/0
clock DTECLK1
link-protocol ppp
ip address 10.203.128.130 255.255.255.252
#
interface Serial3/1
clock DTECLK1
link-protocol ppp
ip address ppp-negotiate
#
interface Serial3/2
clock DTECLK1
link-protocol ppp
ip address ppp-negotiate
#
interface Serial3/3
clock DTECLK1
link-protocol ppp
ip address ppp-negotiate
#
interface NULL0
#
#
voice-setup
#
sip
#
dial-program
#
entity 60 voip
description hetiandiqu
match-template 60..
address ip 10.203.136.123
#
entity 61 voip
description hetianshi
match-template 61..
address ip 10.203.128.2
#
entity 63 voip
description moyu
match-template 63..
address ip 10.203.129.2
#
entity 64 voip
description pishan
match-template 64..
address ip 10.203.129.130
#
entity 65 voip
description lopu
match-template 65..
address ip 10.203.130.2
#
entity 66 voip
description yutian
match-template 66..
address ip 10.203.130.130
#
entity 67 voip
description cele
match-template 67..
address ip 10.203.131.2
#
entity 68 voip
description minfen
match-template 68..
address ip 10.203.131.130
#
entity 6201 pots
match-template 6201
line 2/0
#
entity 6202 pots
match-template 6202
line 2/1
#
entity 6203 pots
match-template 6203
line 2/2
#
entity 6204 pots
match-template 6204
line 2/3
#
gk-client
#
subscriber-line 2/0
#
subscriber-line 2/1
#
subscriber-line 2/2
#
subscriber-line 2/3
#
ip route-static 0.0.0.0 0.0.0.0 10.203.128.129 preference 60
#
user-interface con 0
user-interface aux 0
user-interface vty 0 4
authentication-mode scheme
#
return
现在是需要拨号进行连接，我不知道dialer 应该怎么加 如何应用上？