Firmware 7.4 - Knwon restriction 54248 about autoquadband


I’ve read the 54248 knwon restriction:
“If only one frequency is available in the RF environment, in Autoquadband configuration, the application fails to register.”

Where can I find more detailes about this restriction ?

I’ve developped an application that creates a TCP client socket every 15 minutes. All works. But suddenly the modem can no more start bearer and when this probleme occured the modem can no more received SMS (maybe because SMS are received through GPRS network). I need to restart the modem to correct the problem. (Note: the GPRS event tells that the GPRS is OK…).
Maybe my problem is caused by this restriction…

Any idea ?