COM AT+CNUM: Read own numbers
COM
COM Used variables:
COM
COM Version History:
COM Version 1.0   22.02.2004   R. Weiden	started for R65 series
COM Version 1.1   21.12.2004   T. Kleinmann     read command not implemented but execute command - changed.
COM -------------------------------------------------------------------------------------------------------------


COM AT+CNUM: Read own numbers
AT+CNUM=?
WAIT FOR OK


COM try read command
AT+CNUM
WAIT FOR OK

COM write nonsense (no write command specified)
AT+CNUM=1,"dummy", 012345
WAIT FOR ERROR
