lordinfernal@lordinfernal-laptop:/etc/ppp/peers$ sudo pppd call gprs
Serial connection established.
Using interface ppp0
Connect: ppp0 <--> /dev/ttyACM0
LCP: Rcvd Code-Reject for code 9, id 0
PAP authentication succeeded
Cannot determine ethernet address for proxy ARP
local  IP address 172.20.39.141
remote IP address 85.102.119.136
primary   DNS address 172.17.128.1
secondary DNS address 172.17.128.2
lordinfernal@lordinfernal-laptop:/etc/ppp/peers$  

terminal output below.

and thats my connection scripts:
1st:
/dev/ttyACM0 115200 local receive-all defaultroute usepeerdns updetach persist \
    noipdefault lock connect '/usr/sbin/chat -v -f /etc/chatscripts/gprs' \
    novjccomp nopcomp noaccomp noipdefault nodeflate novj nobsdcomp user mts password mts 

2nd:
ABORT "ERROR"
    ABORT "NO ANSWER"
    "" 'ATE1'
    OK AT+CGDCONT=1,"IP","internet.mts.by"
    OK ATDT*99**1*1#
    CONNECT c