Troubleshooting guide

Cingular Communication Manager Help
4
When a Wi-Fi network (which has been saved as a profile by you or by
Cingular) is not available, Cingular Communication Manager will
search for an available GSM network. Once an available GSM network
is detected, Cingular Communication Manager will take action based
on the connection settings in the GSM profile.
When connected to a GSM network and a Wi-Fi profile network is detected,
Cingular Communication Manager will take action based upon the
connection settings in the Wi-Fi profile. If you choose to change the
connection to the Wi-Fi network, the GSM connection will be terminated
when the connection to the Wi-Fi network is complete. If your Wi-Fi profile
is set to auto launch your VPN, it will re-establish your VPN session once
the Wi-Fi connection is active.