AVR-Chat

Hi all,

I am trying to get some info from an old 6120i nokia phone. According to
some readings FBUS.
I sent 120 times (uint8_t)0x55.  Then I also sent 0xd1 command  in a frame
wich starts with 0x1e etc. however i did not get anything. I was supposed
to get ACK and then my info. The phone just resets and nothing happens.
The usart0 on the atmega162 is ok. The ATmega162 supply voltage is around 3
V.
Did anyone face this problem before? Am I missing something?

Javier