Help regardinginterface with nokia 6610 with 8051

Hai, I want to work with Nokia 6610 interface with 8051
and programming in such way to send and get sms. While connect with HYPER-TERMINAL using DKU-5 cable with NOKIA 6610 it responds for 'AT' with 'OK'. The same while I try to get it ...mmm..No response.

I tested all combination no handsaking is required.
Tell me correct way how to solve this one.

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  • If you connect your 8051 to hypoterminal, do you see the "AT" that it transmits?

    The "AT" command should be terminated with CR (0x0D) only.

    Does your 8051 recognise "OK" sent from hypoterminal?

    Have you tried running your code in the simulator, with the simulated serial IO directed to the COM port with the Nokia attached?

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  • If you connect your 8051 to hypoterminal, do you see the "AT" that it transmits?

    The "AT" command should be terminated with CR (0x0D) only.

    Does your 8051 recognise "OK" sent from hypoterminal?

    Have you tried running your code in the simulator, with the simulated serial IO directed to the COM port with the Nokia attached?

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