Nokia 5170i User Manual download pdf (Page 44)

In some cases, when you try to connect to your service provider,

the following message may appear on the screen:

‘LOCK’ prevents the service provider from changing your

carrier lock code. ‘UNLOCK’ allows the provider to change

the code and restrict others from activating your phone.

If this happens, select the appropriate selection for your phone.

If you don’t want your service provider to change your lock

code, select

LOCK

. If you want to allow your service provider

to change your code to prevent other service providers from

activating your phone, press

UNLOCK

Press and hold for several seconds to return to the

start screen.

Note: Contact your service provider if you have any questions.

System selection

The System menu (

5) allows you to modify how your

phone will work when you are outside of your primary or

“home” system. (Items on the System menu may differ

depending on your service provider.) How your phone will

handle being out of your home area can significantly affect

the types and amounts of additional charges you may incur.

Service Types

In each wireless service area there are usually two service

providers, referred to as type

and type

When you first set up your wireless service account, your

service provider will inform you of which system you will

be using (for example, type

). This is your home system.

The other system (for example, type

) is known as your

non-home system.

Roaming

Roaming is a term used to indicate that your phone is not in

its home area. While roaming, you are actually using another

service provider’s system. Calls made or received while roaming

are usually more expensive than calls made in your home area.

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Nokia 5170i User Manual Page 44