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Modem Connection problem.



Hi all

I am working on the Modem connection establishment. I am using the Flash 56 II ISA modem of Digicom company.

My modem is not connected to the normal PC but it is connected on an altogether hardware. The OS on this h/w is VxWorks.

In the process of making the modem UP, i was successful in dialing the the VSNL number through the modem. 
Now my problem starts hereonwards...i actually don't know whether to start the ppp connection first or wait for the login prompt coming from ISP. As different ISP's provide different procedure..

I tried first with the wait for login prompt from ISP ...but my program goes in the infinite loop and hangs.
Then i tried with the ppp connection first but it is giving the LCP: timeout sending Config request. Actually i have made the IRQ = IRQ3 and so as per my knowledge there is no IRQ conflict in my s/m.

I am badly stuck at this stage....

can anyone pls halp me out

thanx and regards

Santosh