Traffic-i costs £39.99, which includes a years subscription to the service.

There are various ways of connecting your phone to Traffic-i service. These include GPRS, Dial-up, Bluetooth or via the Sony Ericsson SyncStation*.

We recommend that users on the move use GPRS and to give an idea of the amount of data transmitted the usage would range from a light user who uses the service 16 times a month to a heavy user who uses the service about 200 times a month. The light user would use about 75kb of data and the heavy user about 500kb.

Costs for GPRS data vary dependant upon which network you are with, but most offer bundles of 1mb per month for around £2.