C600 with TomTom One to get TomTom traffic info

[Guest stevejarvis]

I have an Orange SPV C600 and a TomTom One (v6.15). Using the TomTom connect to phone function to set the bluetoothconnection up I can get TomTom Traffic to work and collect traffic data, but it uses CSD rather than GPRS to make the connection.

This means that traffic updates fail if I am making a voice call at the same time (and that I can't make voice calls if a traffic update is in place).

In addition it doesn't clear the CSD data call when the traffic update is complete (or ever so far as I can tell). This means that I pay until I notice and clear the call manually.

I can't find any way on the C600 or the TomTom to make it use GPRS.

Is there a way?