List; Dual Sim - Teltonika FMB1YX User Manual

Opening GPRS
NO
Current operator is in
black operator list
YES
Do not allow to
open GPRS/Send
data
A
Work as usual
Figure 17 Operator search functionality diagram. White list is SIM1 Roaming and SIM2 Roaming/ Home
5.7.1

Dual SIM

FMB1YX have possibility to have inserted in them two SIM cards. GPRS settings and
Roaming Operators can be configurd separate for SIM1 and SIM2. In SIM2 Roaming/ Home
operator list home operator must be added to the any part of the list that functionality works
correctly. Dual SIM operator search functionality works like that: SIM1 and SIM2 home operators
have highest priority: When device is connected to home operator - manual roaming operator
search is disabled. When device is disconnected from home operator - operator search
procedure is initiated as normal every 15 minutes. SIM1 Roaming operators list has higher
priority then SIM2 Roaming Operator list. When device finds new operator from SIM1/SIM2 lists
– it switches to new SIM according to list and connects to new operator.
Best operator
search
A White List empty
YES
Black List empty
YES
Skip op search
procedure
A
Operator lists.
NO
NO
YES
Find new best
operator from
White List
Connect to
strongest signal
exept if in Black

list

A
A
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