No I haven't tried. I don't have any (working!) international sims now.

I mainly use them to forward to Mexico mobile when out of range of wi-fi.

At 29c/min they're not a very good deal for forwarding to OneSimCard anyway, there are probably cheaper around (but not Kall8 ).

Actually, you'll be lucky to find any forwarding service to these Estonian numbers that is less than $0.29. Most of them plainly just do not connect and some of them even state so on their website. And those that will connect to it are outrageously high. I'd be suspicious of any that post a too good to be true rate for forwarding to these numbers. It likely will not connect most of the time.

I had international sim card with an Estonian number briefly last year, and I used Rebtel to forward to it. The rate was about $0.29 I think.

I tend to agree. I have used VoiceStick.com, in the past, to do this from the U.S. to a pre-paid SIM.
Now, I often manage to make use of T-Mobile U.S. ability to make free calls back to U.S. if you have a wifi connection. That, and the ability to get/send email on my BB for 67 cents/day often means I don't need a pre-paid.
As many have discovered, many LD carriers refused to carry calls to high priced numbers like +372 mobile and formerly to United Mobile in Lichtenstein. I wouldn't dare have business contacts or friends spend lots of $ to call me. I always make sure they can get me by using my regular number - which then gets forwarded.
Once Google Voice initiates forwarding to intl. numbers - it will make things easy. GV has all kinds of advanced features. Numbers are free. You can use them to dial overseas, now, just not fwd.

...mike

Free voicemail
 

UPDATE: There's no longer a need to make an international call to set up a voicemail password or listen to messages. We just added a new feature where you can now listen to voicemail online by logging in to your account and clicking on the Voicemail link. There, you can also set voicemail to be emailed to you as an audio file and change passwords or other settings.

I would love to hear more suggestions from customers on ways we can improve our service.

Thanks!

Something wrong?
 

When i click on the voicemail link in my account i end up in my 'voicemail cabinet' in Russian instead of English. Onesimcard, how can i change this into English?

No problems reported
 

That is likely a font-related issue where you have something installed on your computer that is making it display in Russian instead of English. The system is designed to support both languages. I will speak with our techs to see if I can provide more information and post a reply back here.

@Onesimcard: The language problem is fixed. My voicemail settings are in English again. Thank you for solving this matter.

Thanks for confirming, I'm glad everything is working well. Feel free to post any more feedback here.

Celtrek
 

Do I understanding, from an earlier post here, that OneSimcard will exchange Celtrek SIMs just as they do with UM SIMs?

You're in luck!
 

Here is their page:
Celtrek Global Roaming Inc. SIM card | Free SIM Replacement Program
It is about the best value you are going to get these days.