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User’s Guide 4–1
4
Using the Phone Features
Use the iPAQ Pocket PC phone to make and receive telephone
calls and send and receive SMS (Short Message Service) and
MMS (Multimedia Message Service) messages. Your mobile
phone service provider may provide other useful services such as
voice mail.
The phone can also be used to connect to an Internet Service
Provider (ISP) or work network so you can browse the Web and
read e-mail. You can connect to the Internet or work network
over GPRS (General Packet Radio Service), or you can use GSM
(Global System for Mobile Communications) for dial-up access.
For information on establishing GSM/GPRS data connections,
refer to Chapter 6, “Making Your Data Connections.”
SIM Card
A SIM (Subscriber Identity Module) card is required to operate
the phone features on your iPAQ Pocket PC. The SIM card is a
plastic card embedded with a computer chip that stores and
transacts data. After the SIM card is activated by your mobile
phone service provider, the computer chip will contain
information about your phone number, service, registration
information, and contacts, as well as memory to store speed dial
numbers and text or SMS/MMS messages that you receive.
With the exception of emergency calls, the SIM card must be
inserted into the SIM slot under the battery on the back of the
Pocket PC in order for voice/data calls to work.