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Matrix SETU ATA211G System Manual 137

Mobile Network Selection

When SETU ATA211G is located in the home region, then, the SIM card gets registered with the Network Operator

of that SIM only, leading to no extra charges to the user (i.e. no roaming charges). Whereas, if SETU ATA211G is

located in an area away from the home region or in an area where there are more than one Network Operators are

available, then, the SIM card may get registered with another available Network and result in roaming charges.

Thus, Mobile Network Selection feature of SETU ATA211G enables you to select the GSM network of your own

choice, either automatically or manually. At Power ON, ATA211G will automatically locate and register the SIM

with the Network that supports the SIM card installed in it. If the SIM fails to register, it will restart the process of

network selection on the expiry of the Network Registration Retry Timer.

Types of Network Selection Mode

SETU ATA211G gives you the flexibility to select network selection mode as per your requirement. ATA211G

supports two modes of network selection: Automatic and Manual. Before you enable the Manual mode for

Network Selection, Network Operator Table is configured, consisting of Network Operator Codes and its priority.

Automatic

This mode is selected when you require that your mobile station should always get registered with the available

GSM network whether you are in home region or outside the home region, to make and receive calls at any cost.

• In Automatic mode, mobile port gets registered with any available network whose signal strength is more

compared to other available networks.

Manual

This mode is selected when you always wish to get registered with the local network operator available in the

region.

• If ATA211G is installed in the border area where more than one GSM network operator is available and

network selection mode is set to automatic then it may happen that the SIM is registered with the other

region's network operator. This is undesirable. Hence, in this situation, Manual mode of network selection

is selected.

If you select the Mobile Network Selection as Manual,you must configure Network Operator Codes

(MCC and MNC) according to priority you want to assign to each, from Priority 1 to Priority 9.

With Network Operator Codes (MCC and MNC) configured according to their priority, at every Power

on, ATA211G will send a request for available GSM Network Operators, who in turn will respond to the

request with a list of available Network Operator Codes. ATA211G will match the available Network

Operator Codes with those you configured and select the Network Operator which best suits your

requirement in order of priority.

• If the Mobile Port fails to register, it will restart the process of network selection on the expiry of the

Network Registration Retry Timer.

• If no match is found, the SIM will not get registered with any of the available Network Operators and no

calls can be made or received on this port.

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Matrix Setu ATA211G Especificaciones Pagina 141