SIM300D AT Command Set - Distributed Systems and Networking

SIM300D AT Command Set
Confidential SIMCOM
default is AT+COLP=0, this cause the TA returns “OK” immediately
after dialing was completed, otherwise TA will returns “OK”,
“BUSY”, “NO DIAL TONE”, “NO CARRIER”.
Using ATD during an active voice call:
� When a user originates a second voice call while there is already an
active voice call, the first call will be automatically put on hold.
� The current states of all calls can be easily checked at any time by
using the AT+CLCC command.
2.2.4 ATD> Originate call to phone number in memory
ATD> Originate call to phone number in memory
Execution command
ATD>[][][;]
Response
This command can be used to dial a phone number from a specific
phonebook.
Note: This command may be aborted generally by receiving an ATH
command or a character during execution. The aborting is not possible
during some states of connection establishment such as handshaking.
If error is related to ME functionality
+CME ERROR:
If no dial tone and (parameter setting ATX2 or ATX4)
NO DIALTONE
If busy and (parameter setting ATX3 or ATX4)
BUSY
If a connection cannot be established
NO CARRIER
If connection successful and non-voice call.
CONNECT TA switches to data mode.
Note: output only if ATX parameter setting with the
>0
When TA returns to command mode after call release
OK
If successfully connected and voice call
OK
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