TOPEX BYTTON HSDPA
User’s Manual
pag. 62
5.7 SIM
Here are the configuration pages related not only to the SIM card but also to the mobile module of the
equipment. Also, from here you may send or receive SMS messages.
5.7.1. SIM Status
This page shows you the current state of the SIM card and of the GSM/GPRS/EDGE/UMTS/ HSDPA
module.
The status of the HSDPA modules is automatically read every five seconds. The following information
items are displayed:
-
Security
: “Unlocked” or “OK” means the SIM is active.“Locked by PIN” means the SIM card is asking
the PIN code to perform unlock.
As an additional security measure, the SIM card is also provided with a PUK code, requested after three
wrong PIN codes.
-
Modem Version
: read from the 3G module.
-
IMSI
(International Mobile Subscriber Identity), subscriber's identity (SIM card identity). This is a unique
15 digits code number that identifies a mobile subscriber to the network. If the BYTTON's HSDPA
module detects an active SIM card, it will query (and display) the IMSI code. Since the IMSI code is
related to the SIM, when you change the SIM card you will have another IMSI code.
-
IMEI
(International Mobile Equipment Identifier). 15-digit number that uniquely identifies an
individual mobile wireless terminal device. While IMSI is specific to the subscriber (SIM card), IMEI in
specific to the equipment ( BYTTON HDSPA modem)
If the SIM card is missing, the SIM Status window will show
“error” in the Security, IMSI, Signal Level, Network and
Registration fields.
But you will still see the version of the 3G modem and the
IMEI code, since they are equipment-dependent, and not
related to the SIM card.
