I've found a fix for a lot of my issues http://www.libelium.com/forum/viewtopic.php?f=16&t=8787
It's a fix (12+ hours so far) for both GPRS and ACC difficulties (timeouts & non interrupts).
I've been using the GPRS.sendCommand()
method with intriguing results. for signal: "+CSQ"
I've confirmed some difficulties with coverage with results like
however I can (with the aforementioned fix) achieve a connection and even SMS transmission, I can't get live RSSI / BER, which is not a problem for now as The required GPRS services appear to be fully operational at about RSSI '6 - 10+'
which translates to approx -100 to -90 dBm, It's a log scale so I could be off.
I've also tried the "+CREG?"
command to verify connected status & it confirms with 0,1 (params & state).
Thanks for the help, the AT commands should prove an invaluable test tool.