Multitech MT100UCC-EV3 Developer's Manual page 35

1 Deletes all read messages. Leaves unread messages and stored device-
originated messages.
2 Deletes all read and sent device-originated messages. Leaves unread messages
and unsent device-originated messages.
3 Deletes all read messages and sent and unsent device-orginated messages.
Leaves unread messages.
4 Deletes all messages.
For example:
AT+CMGD=1 (delete message at index 1)
AT+CMGD=2 (delete message at index 2 )
AT+CMGD=1,0
AT+CMGD=1,1
AT+CMGD=1,2
AT+CMGD=1,3
AT+CMGD=1,4
QuickCarrier™ USB-E MT100UCC-EV3 Developer Guide
CONFIGURING AND COMMUNICATING WITH YOUR DEVICE
35