Al <ardl02029_5@blueyonder.co.uk> wrote:[color=blue]
> SPA 102 uses the 2 centre pins of the RJ 11
> Some phone/modem/ ordless adapter RJ11 uses outer pair, some use inner. You
> have probably got some of each in your collection. Maybe even some crossed
> ones. Be aware.
> In this case it is centre pair.[/color]

Supposedly the ring capacitor /is/ required. These ones work for me:
[url]http://www.broadbandbuyer.co.uk/Shop/ShopDetail.asp?ProductID=2370[/url]
(pennies if you're already ordering from them)

Theo