» home » prepaid cell phones » onesim

Reviews » OneSim International SIM cards

One Sim Card is a product offered by Long Distance Post, LLC, a Massachusetts based telecom company founded in 1994. Services offered by this company are available nationwide.

What is an international SIM card?

Most cell phones operate using a SIM card inserted in the back of your cellular device. This card is like a bridge between your cell phone and your wireless carrier. Without it the phone is useless.

The SIM cards from One Sim Card work internationally. This means that, by replacing your current SIM card with the one from One Sim you can place international calls while traveling abroad. This way rates paid will be much lower than what you would pay if you activated roaming service through your current wireless carrier.

Service highlights

Works in 150 countries

No monthly bills, no card expiration date

Free incoming calls

Calls and text messages received are entirely free.

Savings compared to roaming

OneSim claims 85% savings on your calls when compared to roaming charges by major US carriers.

Promo

$10 initial credit.

OneSimCard customer reviews

Ripped Off Traveler
This company has very poor CS. I bought a $140 card that I was not able to use due to nearly impossible dialing instructions and confusing ways to connect. They refuse to refund my purchase and are pointing the finger at me ..... The customer for not understanding how to make a call.
Three weeks and I had to use my US based ATT phone to make calls.
Word of caution...... These people are a total rip off .... Beware!
#7 - BB - 08/27/2011 - 22:34
My daughter is using One SIM Card and it appears to be pretty good
I bought it online from onesimcard.com and I received it in 2 days. I tested it in the U.S. (expensive @ $2.89/min) and it worked fine both for voice & text. Now my daughter is enroute to Athens. We talked and the voice quality is good and texts arrived promptly. We tried calling each other and each call reached the party intended. So no complaint for now, will update this review after a week or so. Only problem is the phone no. given is an Estonia cell no. and it costs at least 23 cents to 39 cents to call it.
#6 - Jane P - 06/02/2011 - 19:50
This is a VERY questionable company. DO NOT USE THEM!
I am VERY unhappy with this company. I had over 30 text messages to their customer service number within minutes and they said I made them. I never used the text mode.

Olga the Customer service employee said I must have a bad phone. I told her I purchased it from them and therefore would like to return it. She then said I could not return it as over 30 days had passed. I asked to talk to a supervisor and was told he was to busy. Asked for his name and number and was told I could not have it and he would call me.

Over $25 in unauthorized calls and texts have wiped out my account and they said to bad and denied all responsibility!

This appears to be a company run by Russians and I am almost certain it is less than an honest operation.

I will be filing a report with the Better Business Bureau.

#5 - Bob - 04/25/2011 - 16:30
pilot
I had one of the worst retail experiences ever with this Company. I purchased a card that did not work as advertised, only after several calls did the Company agree to refund my money. I sent the card to them as instructed, with a delivery confirmation (but not insured). The Company claimed they never received the card and even though the delivery was confirmed there was no record of a signature. From the tone of the person at the Company reviewing my documentation, it seemed like this was a scam from the beginning. For my next trips I used my US carrier, perhaps the cost was a little more but the coverage was excellent, never again will this Company sell me one of their questionable products that has no support
#4 - Charlie - 04/08/2011 - 11:30
This was the worst I have ever seen. The phone was unusable and the service agent arrogant and condescending when I called for help. I will never use this service again.
#3 - Joe - 08/08/2010 - 09:00
misleading advertising
I purchased this card because they advertised at the time that the minutes did not expire. After having purchased $60 worth of time they have reduced my $7 balance to zero 10 months after purchase because I did not recharge with $25 within 10 months.
In addition they use an east European country as their base. This means that people calling you have to make an international call. Talking is also delayed like in the old time calls to Europe via the underwater cables. You have to talk - then wait for the message to reach the other party - the other party answers and after a delay you hear what they have to say. if people are not aware of this procedure the conversation gets garbled as people speak over each other's voices. Bad experience - have now purchased T-mobile German prepaid card at 18 cents per call within Germany instead of 59 cents charged by onesim. Am using a land line when i need to make international calls.
#2 - Gerald Taron - 06/28/2010 - 12:23
Don;t use Onesimcard.com!
I have had a very bad experience with them, and I urge people not to use them. I credited my accoint with $50, they took the money and didn’t add the credit, so I was stuck in Europe without phone access for a week. When I contacted them about the problem, they first didn’t respond, and since have delayed and delayed, saying they’re “investigating the problem”. I reported the problem to my credit card, and contested the charge, and now they claim I’m “not cooperating” so they’ve blocked my sim card. They’re unreliable, and either incompetent or simply dishonest. Don't use them!
#1 - mikemis - 06/19/2010 - 09:53
One sim card disappoints !!
One of out 4 calls gets connected and SMS does not work at all. ( tested in USA on AT&T network with Nokia & Sony Ericsson)

However, its does not work on the conventional way. You need to dial the number u want and press the talk(green key) button. Your screen will show "Waiting to connect" and u need to press "OK". You will get an incoming call and you need to answer this call immediately. Then, the system dials gives some announcements like "u have 10 mins left" and connects you to the destination number you dialed decades ago :-)

1 out of 4 attempts gets connected (for me) and on the whole, you end up paying a lot of money. Better use conventional roaming methods with your operator.

I am a professional telecom handset tester and i would not recommend this to my mom !
#0 - hari - 01/11/2010 - 20:41
Name
E-mail (Will not appear online)
Title
Comment
To prevent automated Bots form spamming, please enter the text you see in the image below in the appropriate input box. Your comment will only be submitted if the strings match. Please ensure that your browser supports and accepts cookies, or your comment cannot be verified correctly.