As mentioned above, Voipdiscount is not successfully peering via Sipbroker.
Only calls from other Betamax accounts are accepted or else from some DIDs redirected to
user@sip.voipdiscont.com (Example Ipkall, Freedigits).
From Voxalot account, a user can reach a Voipdiscount account to the WinXP client or a registered account using a method described here :
http://forum.voxalot.com/voxalot-sup...html#post15939
or
http://forum.voxalot.com/voxalot-sup...html#post15969
Not sure if the methods described are applicable to the situation in this thread, as the originating call must be using a Voxalot account or a similar service.