Ericsson R250s Pro - Manual (Page 9)

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6 Preparing Your Phone for Use
When you register as a subscriber with a network operator, you get a SIM
(Subscriber Identity Module) card. The SIM card contains a computer chip
that keeps track of your phone number, the services included in your subscrip-
tion, and your Phone Book information, among other things.
SIM cards come in two sizes. One is the size of a credit card, and the other is
smaller. Your phone uses the smaller card. Many credit card-sized SIM cards
have a perforated smaller card that you can take out easily. Before you can use
your phone, you must insert the SIM card as shown below.
Inserting the SIM Card
To insert the SIM card, remove the battery (if attached) and follow these steps:
THE SIM CARD
3. Open the holder. 1. Open the lid that covers the SIM
card holder.
2. Release the SIM card holder by
sliding it in the direction of the
arrow.
5. Lock the holder by pressing it
down and sliding it in the direc-
tion of the arrow in the picture.
6. Finally, close the lid.
4. Slide the SIM card into the
holder. Make certain that the cut
corner is in the top right-hand
corner.