I'm using sipdiscount.com for calls to Zimbabwe mobiles and I've just
noticed that every time I dial a mobile there I'm being charged from the
moment it starts ringing! If the call is not answered it does not go to
voicemail (that would be a connected call), I simply hang up with it
still ringing if I don't get an answer in a reasonable time. And each
time I'm billed for the ringing time!

I've emailed sipdiscount and they haven't replied :-( I can find
nothing on their website to say when they will start charging for a
call.

I am right to think I shouldn't be charged?

Malcolm