Siemens SX56 - Manual (Page 75)

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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).
4.19.5 To 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
4.19.6 Band 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.