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MM6854/64 Dual Band GSM Data Modem
ME 820047 Issue 1.0
Page 20 03/00
5.1.30 AT+CBSTs,m,p – Select bearer service type
Selects the bearer service to be used when data calls are originated.
S
0
1
2
3
4
5
6
7
65
66
68
70
71
Speed
Not supported
300bps / V.21
1200bps / V.21
1200/75bps / V.21
2400bps / V.22 bis
2400bps / V.26 ter
4800bps / V.32
9600bps / V.32
300bps / V.110
300bps / V.110
2400bps / V.110
4800bps / V.110
9600bps / V.110
M
0
Mode
Asynchronous
P
0
1
Protocol
Transparent
Non-transparent
Enter
AT+CBST?
AT+CBST=?
Response
The modem will reply with the selected speed, mode and
protocol.
The modem will reply with the supported speeds, modes and
protocols.
Result codes
OK
ERROR
5.1.31 AT+CEER – Displays why last call was disconnected
This command lets you query the reason why the last call was disconnected.
Enter Response
Notes:
None.
Result codes:
OK
ERROR
5.1.32 AT+CMGD – Delete messages
This command is used to delete a received stored SMS message.
Enter
AT+CMGD=<index>
Response
Delete SMS entry corresponding to <index> where <index> is
the location in memory.
Notes:
None.
Result codes:
OK
ERROR
Message service failure result codes.