Hi we are glad the Piranha Sim worked well in South Korea for you, unfortunately the incoming VoIP problem is dependent on the routes used by the calling party, we only use premium routing on VoIP and Voice calls which you described as good quality when calling out (thank you). SMS, we have tested your existing number and given you a new number to test SMS, we have sent you test texts from 4 different operators/networks, all of which have been received on your original and test number, please let us know where the texts you are talking about were sent from and the result i.e were you charged etc. Finding network, this is very unusual and only normally happens when a handset is left on flight mode, once we replied your support ticket, it was logged that your handset registered shortly thereafter.

PSIM.

P.S We expect to be around for sometime and thank you again for using our service.

Just pulled this off the Piranha forum:

Dear Customers, from the 31-12-2012, Piranha Mobile reduces the costs of Call-Off-Load and Call-Forwarding by approximately 15%-20%.
More price reductions, “COMING SOON” in 2013. Happy New Year from the Piranha Mobile Admin team.

If they have reduced prices today, i wonder what they are planing for 2013?.
Happy New Year to you all.

Built to be sold, a rich man's toy, built for roaming revenue in areas not covered by major companies. In the case of Telna, it appears to be primarily to claim "GSM carrier" status for their international roaming operation.

n.b. There are really no "GSM licenses", just RF licenses. Verizon got into the GSM business when the bought Western Wireless (or when they bought Alltel, who had bought Western Wireless) a GSM-850 carrier. Since they had the network up and running, they kept it operating for the roaming revenue. This was a good thing for ATT & T-Mobile customers, who in many places would have no service otherwise.

i guessed so... We have a customer here in germany who has one (1) GSM tower in antarctica on a research station. So he is a registered carrier and gets good conditions on SMS and data services to sell his telematics products here in germany :-)

Chris

Piranha Mobile Data pricing
 

Noticed a few folks posting here on how good the Pirhana data prices are. Maybe it's the engineer in me, but can anyone confirm that? I see on their web site that they show they charge by the Mb. In my world, that is mega-bit. Other carriers usually charge by the MB (Mega-byte).. If they are charging by Mb you would have to mutiply thier rate by 8 to convert it to MB... I know it's a trivial issue to question if a letter is capital or lower case, but when it means a factor of 8, that is a BIG price difference...

Anyone know the real story?

You are quite right it is a typo it should read MB.:) Thank you for pointing this out.

Dear o dear seen some points on this forum but the last comment takes the buiscuit Mb over MB every body else seems to understand, prehaps you need a hobby.

I am a lawyer and wouldn't have thought about that! I have a client however who has a draft website going live and is paying employees and outside beta testers (small group) a bounty for errors, gaps, and omissions they find on the website. Despite serious proofing, it is interesting what they are finding.

Haven't used an int'l SIM in 2 or 3 years
 

Will be in China for 3 weeks as a tourist in April. For the past couple years I have found using T-Mobile's (U.S.) UMA wifi calling to be quite adequate since wifi was quite prevalent wherever we went overseas the past few years
This time I thought I'd look into an int'l SIM. Piranha seems to be the only provider to provide reasonable rates. Many charge over $1/min. Piranha charges 32 cents/min. for outgoing to U.S. and 19 cents/min. incoming. Question, has anyone here used them in China? The fact they are so much cheaper makes me wonder if I am missing something. The reviews, here, seem quite good. They make use of both carriers in China.
I read a review of China's own prepaids. Excellent and detailed, posting on the "Asia" forum here. Sounds almost impossible for a foreign traveler to make real use of it.

Any China travelers here? Is wifi easily found? Anyone use Piranha or another SIM there?

Thanks.