http://www.powwownow.co.uk/Costs are now offering  mobile short dial code access (voice ) to use the conference service as well as 0844 access. Calls cost 12.5 p a minute plus vat ,which will enable mobile users to avoid more expensive 0844 charges unless they of course have inclusive 0844 calls, or cheaper 0844 calls then 12.5p plus vat.

Whilst most operators allow such calls some of the smaller mvno,s dont.