After serious thinking A.N. Onymous Esq wrote :
> "dejjones" <dej.macklane@virgin.net> wrote in message
> news:8151945b-7150-4973-9496-7c1169977d43@d1g2000hsg.googlegroups.com...
>> Is it possible to set up the SPA 3102, so that all outgoing daytime
>> calls go via VOIP, then all evening & weekend calls go via PSTN( BT)?
>
> With its power off the SPA 3102 defaults to PSTN
>
> Get a digital mains timer and set it so it is on all week but cut the power
> over the weekend - these timer plugs can be picked up quite cheaply - low
> tech answer but it should work!

I like it!