Yes, currently the following Nokia devices support UMA access:
- Nokia Astound,
- Nokia E5-00,
- Nokia E73 Mode (T-Mobile).
- Nokia 7510,
- Nokia 6301,
- Nokia 6086,
- Nokia 6136,
An up to date listing can be found at http://www.umatoday.com/mobileHandsets.php .
UMA (Unlicensed Mobile Access) is the 3rd Generation Partnership Project (3GPP) global standard for subscriber access to mobile circuit, packet and IMS-based services over any IP-based access network. With UMA the mobile operators can deliver mobile voice and data services via IP access technologies (DSL, Cable, Wi-Fi...) by tunnelling the GSM/GPRS protocols via the IP network. The network is typically a wireless 802.11 WLAN network located at the customer premises.
With a UMA-enabled dual-mode Wi-Fi handset, subscribers can automatically roam and handover between cellular and Wi-Fi access, e.g. by using the cellular access when outside the office or home and by switching to the Wi-Fi access when under Wi-Fi coverage. When the Wi-Fi connection is available, the UMA handsets connect to UMA Network Controllers (UNC) via secure connections by using the IPsec VPN tunneling.