US Robotics USR3520 User Manual page 32

Network Settings
If AT&T or UMTS Generic is the chosen wireless operator firmware, you can configure a number of 3G
network settings.
APN

Sets the APN value automatically based on the SIM card installed.
IMPORTANT: When the APN which is set automatically, is not the correct one, you can change it
manually.
When the APN is manually changed, the gateway will remember this and will use this APN every time
it detects this individual SIM card.
When a different SIM card is inserted the gateway will again choose the APN automatically.
Authentication method

Selects the authentication method:
o Automatic: (default). Uses PAP authentication for connecting to the network, followed by CHAP
authentication.
o PAP: Uses PAP authentication protocol for connecting to the network.
o CHAP: Uses CHAP authentication protocol for connecting to the network.
o NONE: No authentication protocol used.
Username

Defines a user name if required by the wireless network subscription.
Password

Defines a password if required by the wireless network subscription.
Network selection method

Sets the network selection method when roaming:
Revision: 1.00 Copyright 2015 U.S. Robotics Corporation 32 | P a g e