I'm surprised you haven't been spammed by "CALLS AND TEXTS" who operate a call-through which has access numbers in one of the ranges you mention and supports calls to Bangladesh at all times.
Even more puzzling to me is that there is a service on the forum which supports Bangladesh and is inclusive from all networks, not just GT! Why are you not using that?
Also, I seem to recall that once upon a time you were very happily spamming the fact that GT included calls to Isle of Man, Guernsey etc all over the place. If you want something to last a reasonable amount of time, this is not the right approach.
Finally, please think twice before re-posting the same message for no good reason!
Davegr i repeated one of my post as no one was answering my qustion
The service you mentioned about that is on the forum I know about but it has retrictions not unlimited calls tho.
Sorry if i keep mentioning GT mobile that you can call isle of man and guernsey numbers.
I thought that if anyone knew anyother services that are running giving us 077814, 07829 or 07822 numbers
Only two sercies that I know are giving the numbers.