请问电话首选项中的呼叫限制清单时干什么用的？

idoou

在打开呼叫限制清单的时候，需要输入SIM 卡的PIN2码。这个功能到底是干什么用的呢？

aligatou

Use restricted dialing
Note
( J2 @( m6 `$ W% @* W3 lDepending on your wireless service provider, your phone may not have this feature.
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When restricted dialing is turned on, you can make calls to or answer calls from only the numbers on your restricted number list.
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- t' g3 ~, y$ K! i- zTo add to or change the list, you need to enter a PIN2 code. If you enter an incorrect PIN2 more times than allowed by your wireless service provider, the SIM card locks. After the SIM card locks, you need to enter a PUK2 to unlock the SIM card. Contact your wireless service provider for more information and your PIN2.
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Before you begin
: w, P: _# M! ~4 N9 qGet your PIN2 from your wireless service provider. If you have entered your PIN2 incorrectly and your SIM card is locked, obtain your PUK2 from your wireless service provider.

( D) F5 x% i% |) P2 ]2 X. i$ K; ~Open Phone .
Open the application menu, and tap Preferences.
  q. [* r/ S7 F# S4 iDo the following to turn restricted dialing on or off:
In Restricted dialing, tap On or Off.
Enter the PIN2, and tap Next.
To edit the fixed number dialing list, in Restricted dialing, tap View restricted dialing list, and do one of the following:
To add an entry, tap Add an entry, and enter the PIN2. Enter the name and phone number, and tap Done.
# ?3 s/ R& t$ b. t$ s8 xTo edit an entry, tap the entry, and enter the PIN2. Edit the information, and tap Done.
$ H3 D4 Z! j: @) y- z& z2 \To delete an entry, swipe the entry off the side of the screen, and enter the PIN 2. Tap Delete to confirm.
% l1 x  B1 `6 w  ^. ~; D" P不解释...
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[ Edited by aligatou on 2010-12-10 16:46 ]

idoou

哦，原来如此。

灯泡辣椒

楼主是装懂还是真懂啊,我看不懂这是啥啊