best service with a +372 mobile sim
 

Just purchased a +372 number through go-sim trading in my useless united mobile card.

previously used callbackworld, to give a pin2dest number to friends. any recommendations on a similar type service? unfortunately callbackworld isnt supporting +372 numbers.

thanks

Is callbackworld still operational? I used them in 2006 to good effect. I need a direct phone dial callback for USA to USA calls, no SMS triggering. And, having never used any callback services besides Callbackworld, which allows this, I need to be able to call from a different phone/# but still have the US number callbacked. Does anyone have suggestions for the cheapest such service? Callbackworld has 8cents/min.

I see voipcheap etc. have 0-1cent/min, but you have to buy credit in advance. Are there any such companies that do not require buying credit in advance, or have very low minimum credit purchases? Like $1-$5? Thanks!

SparRuf – mit dem Handy billig ins Ausland telefonieren
Your friends pay landline costs of their country, you pay 19€ct/min for forwarded calls to your estonian mobile.
I've used this for my airBalticcard | About airBalticcard Mobile

yes, i can confirm Sparruf gives good quality calls to airbaltic and travelsimshop cards.