Siemens A50 Service Manual

4
Subscriber Identity Module (SIM)
SIM is a smart card, which has a computer, and memory chip that is permanently installed in the
mobile equipment. It comes in either the size of a credit card or smaller version known as the
plug-in SIM.
The subscriber information, which includes a unique number called the International Mobile
Subscriber Identity (IMSI) is stored in the SIM card. SIM card identifies the subscriber to the
network.
To protect the SIM card from improper use, a security feature, a four digits personal identification
number (PIN), is built in. The PIN is stored in the SIM card and can be changed by the
subscriber. PIN2 is required for additional functions available with a special SIM card (Consult the
operator for more information about the PIN 2).
A code (PUK) is provided for unlocking the SIM card if the SIM card is blocked
.

Siemens A50 Specifications

General

Display resolution	101 x 64 pixels
Networking type	GSM
Operating frequency	900, 1800 MHz
Display number of lines	5 lines
Internal memory	0 MB
WAP	1.2.1
Multimedia Messaging Service (MMS)	Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network
Ringer type	Monophonic
Microphone included	Yes
Form factor	Bar
Phonebook capacity	50 entries
Text prediction system type	T9
Personal info management (PIM)	Alarm clock, Calculator
Talk time (2G)	5 h
Battery capacity	600 mAh
Standby time (2G)	250 h
Product color	Blue

Weight and Dimensions

Depth	23 mm
Width	46 mm
Height	109 mm
Weight	95 g