Sony VAIO VGN-T300 Series Connection Manual page 6

VAIO® Computer Wireless Information
Inserting the SIM card
If your computer came with a preinstalled Cingular SIM card, verify that the card
is indeed in the SIM card slot.
To activate your Cingular account, call Sony customer support at 888-604-VAIO
(8246). When calling customer support, you may be asked for the SIM# (IMSI #) and
IMEI code. To determine these values, start the Cingular Connection Manager (CCM),
open Tools, and click Network Info. Alternatively, you can check the the rear of your
VAIO computer. The IMEI # should be printed on the back of your computer. The SIM#
is printed on the SIM card.
6
Cut-off corner
oriented left
SIM card (printed circuit side face down)