[i]Wavecom Scan +WSCAN
This Wavecom proprietary command displays the received signal strength indication for a specified
frequency (in absolute format).
This command is not allowed during communication.
What the phrase “This command is not allowed during communication” means? I try to use this command and in “dedicated mode” and in “idle mode”, without a sim card, and even when the modem is not registered in a network. Neither in GSM, nor in UMTS this command does not wish to work. Persistently produces “+CME ERROR: 3”. How to be?