Hello Denis,

> Are the username and password set properly on the context?  

Yes, they are.
root@131D2F4C5254324B:~# /usr/lib/ofono/test/list-contexts
[ /quectel_0 ]
    [ /quectel_0/context1 ]
        Name = Россия
        Active = 0
        Type = internet
        Protocol = ip
        AccessPointName = internet
        Username = gdata
        Password = gdata
        AuthenticationMethod = pap
        Settings = { }
        IPv6.Settings = { }

    [ /quectel_0/context2 ]
        Name = МегаФон MMS
        Active = 0
        Type = mms
        Protocol = ip
        AccessPointName = mms
        Username = mms
        Password = mms
        AuthenticationMethod = pap
        MessageProxy = 10.10.10.10:8080
        MessageCenter = http://mmsc:8002
        Settings = { }
        IPv6.Settings = { }

> And you may want to share the log of oFono activating the context configured for PAP.

I have added the PAP context activation log file from ofono to this email as well as I did in the previous email. Please find it attached. It also fails at the same phase: "gatppp.c:ppp_enter_phase() 2"
Probably I need to try to dump the ppp connection and analyze it with WireShark. Any ideas will be appreciated.

Yours sincerely,
Sergei Golubtsov.