Sony Ericsson K508i the, tab, Limited, Calling, Unlimited, Tone signals, Call priority, To add a group, Closed user groups, and enter your PIN2, The number is called

To set a credit limit

1} Settings } the Calls tab } Time & cost } Call costs } More } Set credit and enter your PIN2 } OK.

2Select Limited or Unlimited. If you select Limited, enter an amount } OK.Call priority service

You can request a certain priority when you make a call, if your subscription supports the call priority service. The priority levels are defined by your network operator and are normally within the range of 0-4, where 0 is the highest priority.

To check or change your standard priority level1} Settings } the Calls tab } Manage calls } Default priority.2The network sends available priority levels. Select a priority level.To change the priority for one call1Enter the phone number you want to call.2} More } Call priority and select a priority.The number is called.

Calling

Closed user groups

The closed user group function is a way of lowering call costs. If you subscribe to closed user groups it is cheaper, on some networks, to make calls within a call group. You can save ten groups.

To add a group1} Settings } the Calls tab } Manage calls} Closed groups } Edit list } New group }Add.2Enter the name of the user group } Continue.

3Enter the index number } Save. You get the index number from your network operator.

To call outside a closed user group

}Settings } the Calls tab } Manage calls } Closed groups } Open calls } On. When Off is selected, it is only possible to call within the group.

Additional calling functions

Tone signals You can use telephone banking services or control an answering machine by sending tone signals (also known as DTMF tones or touch tones) during a call.

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