PIC16f877A Sending SMS (AT commands) to Siemens C55

[galapacos]

hello all, im new user in this forum

i want to explain my problems

first of all i learn AT commands and tested them with hyperterminal, i connected my siemens c55 to laptop with data-cable then i send commands. finally i send sms to my own mobilephone. But after write these command in C compiler my system didnt work. i want to share my proteus shematic and c code, could u help me pls!
**broken link removed**

C code is:
**broken link removed**

 

[ckshivaram]

Ascii of enter is (0x0a & 0x0d)..........

 

[galapacos]

hmm ok thx, is there any wrong do you see?

 

[galapacos]

Ascii of enter is (0x0a & 0x0d)..........

if it was a problem, i think it didnt work at COMPIM simulation. thx