HTC Shadow user manual About UMA, Connect to other wireless networks, UMA modes

Getting Connected  165

About UMA

Your device features UMA (Unlicensed Mobile Access) capability. UMA is the commercial name of the 3GPP Generic Access Network (GAN standard). GAN extends mobile services voice, data and IP applications over IP access networks. With UMA enabled, you can seamlessly roam between GSM and UMA networks, and the device will handover the signal.

When UMA is enabled and you are in a UMA service area, you will be able to use GSM/GPRS services via a Wi-Fi or IP network. The UMA client handles handover between random access networks and UMA networks automatically.

UMA active

UMA calling in progress

UMA modes

Phone on	Wi-Fi on	Phone and Wi-Fi on
GSM only	UMA only	UMA / GSM (preferred mode)

Connect to other wireless networks

To create a connection to an existing Wi-Fi network

1.On the Home screen, scroll down to on the Shortcut Bar, and then select Manage Connections.