Has anybody got 2talk VOIP working on slingshot?

Hi All,

I'm trying to get my 2talk VOIP service working on a Slingshot tripleplay router. Have spoken to both 2talk and slingshot

but neither have been able to provide much assistance. I have Slingshot VOIP working on FXS1 and trying to get 2Talk on FXS2.

Tried disabling Slingshot VOIP on slingshots suggestion that it may only handle one active at a time, but still no registration being achieved.

I'm starting to wonder if Slingshot firmware is blocking somehow?

Any ideas appreciated.

Cheers