1.In phone dialer, tap Tools, Options and then Network.

2.Select either Automatic or Manual in Network selection (retrieving settings may take a few minutes when you select Manual).

4.19.5To set preferred networks:

1.In phone dialer, tap Tools, Options and then Network.

2.To select Set Preferred Networks (retrieving settings may take a few minutes).

3.To select either networks and re-prioritize the order for network usage.

If there are many mobile phone service providers available to you, enable this function to select a lower fee network

4.19.6Band Reselection When Traveling Outside the United States

When traveling outside the United States or Canada, you must manually reselect your device’s transmission frequency band to connect to a wireless network.

To do so, tap , Settings, Phone, and then Band to reach the screen that is displayed at left.

When on AT&T Wireless’s network, ensure that GSM 1900 is selected. When traveling outside the United States or Canada, ensure that GSM 900 is selected.

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Siemens SX56 manual 19.5To set preferred networks, Band Reselection When Traveling Outside the United States