Vpoip..betamax stopped access to isle of man mobiles.
 

I had been ising a betamax clone (megavoip) to call a Isle of Mn mobile number (+4477000) but suddelny last week betamax barred calling Isle of Man mobile! sorry nothing we can do about it their response!

do you know any other cheap alterantive for this destination?

It is an expensive destination. That is why probably betamax barred calls to it.
I have not been able to verify rates to this from many cheap carriers I have tried. The cheapest I have found so far is 14 eurocents/min.

Others do not appear to offer it. Can yoy give me a number to try and check rates?

betamax allowed access (charged as UK mobile ) until last week.
most providers charge this as a UK mobile destination, that's why they don't have "isle of man" as a destination country.

which is the one with 14c you have found?
number is +447700056879 (network provider: Cloud9 Communications Limited)

Betamax charges a flat rate for calls to UK mobiles without differentiating between prefixes. However some of these (like cloud9) have higher termination fees. Once a limit of calls is reached for these prefixes the provider (e.g. betamax) choses whether to allow calls or charge higher rates. They have chosen the first option. Block calls.


The carrier I have found is

Cheap International Calls | Localphone

It is a stable provider with good qaulity. Charges per minute. Has local access numbers in Greece also

thanks, checking on them.
actually the cost is 16.6 eur.cents/min icluding vat.

betamax after just making 1call to this number (for 2 minutes) afterwards blocked automatically the access to this number ... no limit of calls happened to my case, they just barred this series of numbers almost instantly.

I'm not so sure about that. From the national landline operator BT the rates for Cloud9 numbers are the same as for 3 or O2, which are the same anyway.

Some other prefixes are more expensive, but I don't know yet whether these have any similar action by Dellmont or Finarea brands

The few voip carriers that I have checked seem to charge higher rates for calls to this prefix (+447700) as compared to o2 or the other major cell operators. Even localphone which is a UK carrier charges more

So I assumed that they would indeed had higher termination rates.

the only sure thing is that Dellmont/betamax barred me the access to these numbers after my 1st call...

I have a IOM number beginning +447924....

Using the Mobilevoip app a few weeks ago, I had intermittent problems with calls to my IOM phone.

Reading this today, I tried making a few calls directly through Voipgain to my IOM number and it went through fine.

which is the network provider of this +447924 number .. cloud9? you can check it here: http://www.numberingplans.com/?page=...is&sub=phonenr
your calls through Voipgain were chargable calls or just un-answered calls?