I am trying to send a string from a Huawei MU509 GPRS modem to a Linux server over the internet. I am using an AT command tester to simulate AT commands. After giving the
AT+IPOPEN=1,"TCP","188.8.131.52",7869) commands, the module indicates that the data connection was established successfully. While sending data using the
ipsend command (
AT^IPSEND=1,"cgfcgcgs,1100.8683,07656.7037"), no data is received server side.
I also checked the server side program, and it reports no errors. When using a piece of software called Packet Sender, I got an empty response. I've searched some hours in net and I haven't got any possible solution. What is the issue with the module and/or server?