Friend, I am doing something similar, but when you start sending me some codes it reports error:
AT+CSTT="bam.entelpcs.cl"
OK
AT+CIICR
OK
AT+CIFSR
10.177.68.41
AT+CIPSPRT=0
OK
AT+CIPSTART="tcp","api.xively.com","8081\
ERROR
AT+CIPSTART="tcp","api.xively.com","8081\
ERROR
appreciate your help