Motorola G24 用户手册

下载
页码 642
Chapter 3:  AT Commands Reference
 December  31, 2007
AT Commands Reference Manual
3-55
Call Advice of Charge Commands
This set of commands enables GSM operators to offer Advice of Charge (AoC) services that 
calculate call charges. These charges are expressed in terms of home units.
+CAOC, Advice of Charge 
This command displays information about the cost of calls. If supported, this command also 
activates/deactivates unsolicited event reporting of the CCM (Current Call Meter) information. 
The unsolicited report +CCCM:<ccm> is sent when the CCM value changes, but not more than 
once every 10 seconds. 
Note:
The CCM value depends on the network properties (charge for MO or/and MT calls). 
There are two states in which the command can be activated: