Finally got a connection. ATT suggested using “broadband” as APN and no ID:PASSWD. Works and I get a 3g-modem device and IP address. Now own to my next quest. I would like to use one of these devices, no wireless AP, no additional WAN, just bridge 3g-modem to LAN port in bridge mode so that a firewall can be connected to the LAN port and use the assigned IP address that was given ti the 3g-modem device.