First of all, tunnel guru is currently rocking real hard with this same etisalat working with the following configurations below.
How Can I Configure My Tunnelguru
==>Open your tunnelguru and configure it like this:
Server: Select any TCP
Server port: 80
Tick use proxy and input it like this 220.127.116.11:80 or 10.71.170.5:8080
My friend tested it, it is fast, it opens every site and the download speed is beyond what mouth can tell.
If it does not work for you, go and see a doctor.