Hello,
I am using a Sim900 module with an Arduino Nano and a Ting 2G sim card. I’m trying to get the cell tower location using the SIM900. Everything works fine until I type AT+CIPGSMLOC=1,1. I get a long pause and then a 408 error which means my requests timed out. I set the APN to wholesale with no username or password, based on Ting’s suggestion. I also use this module to send and receive messages without a problem. So I’m pretty sure I’m just not setting the APN correctly or I’m missing something basic. I’ll attach my commands that I use below and the response that is sent back. Any help is appreciated, thank you!
at+cgatt=1
OK
at+sapbr=3,1,“contype”,“gprs”
OK
at+sapbr=3,1,“apn”,“wholesale”
OK
at+sapbr=0,1
OK
at+sapbr=1,1
OK
at+sapbr=2,1
+SAPBR: 1,1,“2*...*”
OK
at+cipgsmloc=1,1
+CIPGSMLOC: 408
OK