MTS 3G configuration for Cisco 880G and 890G series routers

#cellular 0 gsm profile create 1 internet.mts.ru pap mts mts ipv4
!
chat-script reset_chat-script "" \d\d\d+++\d\d\d
chat-script mts_chat-script TIMEOUT 90 "" AT+CGDCONT=1,"IP","internet.mts.ru" OK ATDT*99*1# CONNECT
!

interface Cellular0
 ip address negotiated
 encapsulation ppp
 dialer in-band
 dialer string mts4
 dialer-group 1
 autodetect encapsulation ppp
 async mode interactive
 ppp authentication pap chap callin
 ppp chap hostname mts
 ppp chap password 0 mts
 ppp chap refuse
 ppp pap sent-username mts password 0 mts
!
dialer-list 1 protocol ip permit
!
line 3
 script dialer mts_chat-script
 script reset reset_chat-script
 no login
 modem InOut
 modem autoconfigure discovery
 no exec
 transport input none
 transport output all