Nokia 6301 is a revamped version of the popular Nokia 6300 and it now includes UMA technology. The main differences are the WLAN support and an internal memory upgrade to 30MB. Thickness and weight have increased a fraction to allow for the wireless support. Other features remain as before with a 2 megapixel camera, Micro SD card slot and Bluetooth v2.0. Network compatibility remains unchanged with tri-band GPRS and EDGE support, but the Nokia 6310 now adds UMA to that list.

Having UMA at your disposal means that whenever there is an accessible Wi-Fi hotspot near you, be it your home, office or university, or simply in the street, the device can connect to it and use the connection for making and accepting calls and sending and receiving data similar to using wireless VoIP-telephony on your GSM mobile phone. The handset would be able to switch connections between the cellular network and the Wi-Fi network even in the middle of a call without the user ever noticing. A call initiated using the Wi-Fi interface eventually reaches the 2G core network through the UMA network and, once the signal is transferred, it becomes indistinguishable from the rest of the cellular traffic. Subscribers using UMA can take advantage of improved indoor coverage and higher data rates, when accessing the local WLAN.