Operation; Performance Highlights; What Happens When You Start Up The Microcell; Authentication - AT&T 3G MICROCELL User Manual

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Operation

Here are some performance highlights for AT&T 3G MicroCell™ service using the MicroCell:

• Supports AT&T 3G wireless phones and devices

• Supports up to four simultaneous calls

• Supports hand out to the macro network

• Supports UMTS bands 2 & 5 (1900 MHz and 850 MHz)

At startup, the MicroCell connects to the AT&T network using your Internet service. Then the AT&T

network authenticates the MicroCell and its location. The process takes from 10 to 30 minutes

to complete. If authentication succeeds, AT&T 3G MicroCell™ service is granted. If authentication

fails, service is denied.

First-time authentication in a new location requires a GPS (Global Positioning System) link with

the MicroCell.

• If the GPS link succeeds, authentication continues.

• If the GPS link fails, authentication is terminated. A failed GPS link is indicated by a flashing

green GPS LED on the front panel.

A GPS link will fail because of low signal strength at the MicroCell.

If the 3G LED is also flashing, authentication has failed. See Troubleshooting on page 16 for

steps you can take to fix the problem.

Note: You can still receive AT&T 3G MicroCell™ service when the GPS link is down as long as

the MicroCell has previously completed authentication. However, if you move your MicroCell to a

new address, it will need a GPS link again in order to complete authentication and receive AT&T

3G MicroCell™ service.

OCTOBER 24, 2008 DRAFT

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