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SIM Authentication

3 SIM Authentication

The service provider provides you with a SIM card. This SIM card contains

information about the subscription and is normally protected by a PIN

(Personal Identification Number) and a PUK (Personal Unblock Key) code.

Note: Emergency calls (i.e. 112) can always be made, even without a

SIM card or the correct PIN code.

Normally, you have to enter the PIN to activate the Ericsson W25 Internet

and voice services. In some cases however, authentication is not required

and it is possible to use the services without entering any PIN.

Quick Installation Guide

Follow the instructions in the

and insert the SIM

card into the Ericsson W25. When the installation is finished, you can either

enter the PIN via a phone connected to the Ericsson W25, or via the

Ericsson W25 internal web pages (see section

4.3.1 – “Internet Access” or

4.4.2 – “Authentication”).

Follow the steps below to enter the PIN using a phone connected to the

Ericsson W25. The “PIN required” and “PUK required” tones are described

Table 3 – “Information Tones” .on the next page

1. Pick up the telephone handset. If you hear the dial tone, you do not

need to enter any PIN. If you hear the specific “PIN required” tone,

proceed to step 2.

2. Dial * <PIN> #

If the PIN is correct, you will hear the normal dial tone, which indicates

that the voice service is activated and that it is possible to make phone

calls.

If the PIN is incorrect, you will hear the “PIN required” tone again.

Repeat step 2.

Note: If three attempts have been made with an incorrect PIN, the SIM

card is blocked and you will hear a new tone, indicating that the

PUK is required to unblock the SIM card.

To unblock the SIM card, dial the following sequence:

* <PUK> * <new PIN> * <new PIN> #

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Ericsson W25 Guía de usuario Pagina 12