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with an SMS message, but it should not be more than 30 Latin
characters.
Switching Between the Profiles
Description of Profile Switching
Switching between the profiles can be useful, when 2 SIM-cards are
used in the device slots for SIM1 and SIM2. When the device is activated,
it switches to current profile 0 and selects SIM1 slot. If a SIM-card is
detected in the slot, the device tries to register on the GSM network. If
the device fails to register within 3 minutes, it checks the value of the
Switch Profile Enable
setting.
If its current profile value is 1, the device
selects SIM2 slot. If the device fails to register within a particular time
frame, its sets current profile to = 0, disables the modem and goes to
sleep mode for 2 minutes. Once sleep time lapses the process is
repeated.
If the profile switch is disabled, the device always selects SIM1 slot
and uses profile 0 parameters. If no SIM-card is detected in the slot or if
the device cannot register on the network, it switches off the modem for
some time without switching between the profiles.
In case of successful registration on the network, the device will
use configuration settings of the respective profile (profile 0 for SIM1 and
profile 1 for SIM2).
Example of profile switch enabling.
setparam 0916 1;
ATTENTION!
For correct operation of the profile switch
option, roaming must be disabled for the SIM-card of local
carrier.
Description of Operator Selection Modes
1 - PARAM ID=0917=1
Both SIM cards are trying to register with the entire list of operators
2 - PARAM ID=0917=2
SIM1 tries to register with oper0 - oper19 only
SIM2 tries to register with oper20 - oper39 only
3 - PARAM ID=0917=3
SIM1 tries to register on the home network only
SIM2 tries to register with the entire list of operators oper0 - oper39
Mode 0 (Operator Selection Enable ID=0917 0)
In this mode, the device tries to register on the home network of
the respective SIM card, the list of operators is not used. When the
power is on, the device sets profile 0, selects SIM1 and waits for the SIM
card to get up and ready as well as for the registration on the network. If
the SIM-card has not been detected within a certain time, or it has been