User`s manual

NexSens Technology, Inc.
iSIC User‟s Manual 21
1.4.4 Activating a AT&T/Cingular EDGE 3100-iSIC Cellular Modem
There are two steps in activating a Cingular EDGE modem: installing the SIM card and checking
the APN and context values. From the Airlink Raven manual available online at
http://www.airlink.com:
The SIM (Subscriber Identity Module) card in the Raven is a smartcard securely storing the key
identifying a mobile subscriber. Generally, you will only need to install the SIM once in the life of
the modem and it should be pre-installed by NexSens before the 3100-iSIC is shipped. If the
SIM card was preinstalled simply check the APN and context values and the modem is activated.
SIM Card:
The color of the SIM card may vary. When Cingular account representatives refer to “orange or
blue” they are referring to pre-merger AT&T Wireless or pre-merger Cingular. The old AT&T
Wireless SIM cards are no longer offered. The new SIM cards should say either “64K” or “3G”
and come in several different colors. The mobile terminated data piece is a function of the APN
assigned to the account, not the physical SIM. For Cingular accounts to work you must have a
dedicated or custom APN as the account must be “mobile terminated” for iChart to be able to
communicate to 3100-iSIC devices. As of 3/12/2007 a dedicated APN is a free add-on to a
Cingular account using the “G821 code”.