HI all,
I am using LPC2148 to interface with modem mc55i. i am using TCP/IP protocol for transfering data to server.i have already done it using reliance CDMA phone.now i am trying it using GSM.the modem is responding to all my AT commands.but am not able to transmit my LCP(link control protocol) frame. i want to transmit data to server.i feel the problem might be in the data link layer. can anybody please help me to sort out this problem.