Datasheet

44 7. Command Overview
AT^STPB=<n> Transmission of the parity bit (only for the data formats 7E1 and 7O1)
Concerns only the air interface!
<n> 0 The parity bit is not sent via the air interface and is
replaced by 0.
1 The parity is correctly sent via the air interface as the
8
th
bit. This setting should be used when problems
occur with the data formats 7E1 or 7O1 during data
transmissions.
7.2.2 AT Commands For GSM Connection
AT+CBST? Queries transmission service type
AT+CBST=<n> Sets transmission service type to modem and ISDN TA
<n> 0 Auto bauding
4 2400 bps (V.22bis)
6 4800 bps (V.32)
7 9600 bps (V.32) - default
14 14400 bps (V.32)
68 2400 bps (V.110)
70 4800 bps (V.110)
71 9600 bps (V.110)
75 14400 bps (V.110)
AT+COPS? Display selected network provider
AT+COPS=<n>
[,<format>,
<oper>]
Select network provider
<n> 0 Automatic (default)
1 Manual selection <oper>
2 Unregister from GSM network
4 Manual selection <oper> - automatic selection if not
accessible
<format> 0 Alphanumerical information (up to 16 digits) for
<oper> (default)
2 Numerical information for <oper>
<oper> Information of the network provider : see Chap. 8
AT+CPIN? Query required PIN
Response (selection):
READY No input required
SIM PIN Enter SIM card PIN
SIM PUK Enter PUK of the SIM card (after repeated false entry of
the PIN)
ERROR SIM card not inserted
Version 1.00 / 09.04