PIN2: the secrets of using?

Every SIM card has two pin-codes: PIN and PIN2

If with the first all clear, the second is something completely useless.

Question: has anyone ever really took the opportunity PIN2 in the "peaceful" purposes? If Yes, in conjunction with any devices they managed poyuzat (especially interested in a bunch of USB-whistles).
October 8th 19 at 01:41
2 answers
October 8th 19 at 01:43
Usually classic using a PIN2, this limitation of the possibility of dialing masks.
Let's say I have a number of MTS-Ukraine with free calls within the network and for calls to other networks it is not yuzaetsya.
I don't want to mistakenly call to another operator.
Codes my operator 50,66,95,99. Country code +380
Create mask set +38050,+38066,+38095,+38099 and *1 for USSD requests.
Now I can call your operator avoid accidentally dial the wrong number or call with the wrong SIM.
The number of masks is limited(usually 6-10) and depends on the specific SIM card. May differ even on different SIM cards of one operator.
Applies for calls and sms
And which buttons (and what machine) you need to push to these masks to add? - Leila commented on October 8th 19 at 01:46
Each machine is different, see instructions.
For example Nokia 1100 — Menu-Settings-security settings-call barring includes restrictions calls only on the mask, Menu-Settings-security settings-fixed dialing numbers — specifies the mask.
Most phones these settings are located under security settings either in the phone book, in the English version of the menu are usually referred to as FDN or Fixed Numbering Dial - Adrien.Tremblay commented on October 8th 19 at 01:49
October 8th 19 at 01:45
If in short, the PIN2 code is an additional custom lock use SIM Card and Moble Phone.
Used on some phones, for various locks:
— blocking outgoing calls to your phonebook and special numbers (112 or other) (used on the Nokia)
— children mode, when any call from the device occurs on a pre-opened menu in the room (not compatible with previous paragraph)
— lock some of the settings of the phone

Protection to short numbers should be on the part of the operator:
— in megaphone so
— the rest do not know
That is, if "set" PIN2 on the SIM card to insert in another phone, then no protection will be gone? - Leila commented on October 8th 19 at 01:48
The defense will, PIN2 works on SIM card and not the phone. - Adrien.Tremblay commented on October 8th 19 at 01:51
1010101001000100110100111, WEBIVAN, not all phones support limit phone features using PIN2, therefore, binding only to the SIM not going to work. - Leila commented on October 8th 19 at 01:54
Don't be silly. PIN2 is part of the GSM standard and its related functions can not only support very old phones.
Do not rule out that some manufacturers put function PIN2 in such a jungle of the menu that they are there figs you will find, but limitations exposed via PIN2 are working on the firmware level of the SIM card and not phone as I work on regardless of what phone the SIM is inserted. - Adrien.Tremblay commented on October 8th 19 at 01:57
Yeah, I almost corrected PIN2 — part specifications sim card and not gsm. - chyna_Schoen commented on October 8th 19 at 02:00

Find more questions by tags SIM cards