What's the make and model of your WLL phone? Once you have these, doing a Google search for "<make> <model> modem howto" should hopefully turn up some good results, such as this one
for Reliance or TATA Indicom WLL phones.
Also, you really should have mentioned this in your other threads
. And in fact, there shouldn't be
other thread since this is the same problem covered in those ones, and triple(!)-posting means that people can't follow the development of the problem properly, and don't get all the information they need
. And whilst I appreciate that English may not be your primary language, a few more full stops, capitals and/or commas in that sentence would have made it much easier to understand.