User Manual

ATD [phone]<cr>
response
OK
3- Let us assume you have to call the international number [phone] without
previously setting the +FCLASS=8 (voice),
command
ATD [phone];<cr>
response
OK
 send command AT+CHUP<cr>
 wait for response OK
During the voice call the device remains in command mode, so the escape sequence (+++)
must not be issued before sending commands.
Before a data call can be placed, it is recommended to check if the mobile is registered on a
network (see par. 2.7.3.1) and if the signal strength is enough to ensure that a call can be made.
 send command AT+FCLASS=0<cr>
 wait for OK response
The +FCLASS setting is maintained in the memory and there is no need to repeat this
command if +FCLASS setting is not changed.