General questions about OISTR.
OISTR is an authentication company. We provide a platform to review a MSISDN prior to initiation of a transaction to secure the payment by mobile payment based on historical data and a patent pending analytics of machine learning and intelligent algorithms as best as possible in advance or to detect a possible fraud risk at an early stage.
Ad Portable GmbH is a company that has been operating internationally in the direct carrier billing environment since 2011 and has always worked on fraud prevention solutions and now also offers these experiences to third parties via the API under the brand OISTR.
Ad Portable GmbH
phone: +49 351 87437640
Of course you can trust us.
The protection and security of your personal information is our top priority. OISTR provides the platform to review a MSISDN before initiating a transaction. We try to recommend only transactions with verified numbers to the dealer. This serves to protect the phone number holder.
Order an payment.
To authenticate yourself to OISTR, send the TAN displayed in the web browser from your mobile phone to the 22100 via SMS.
Important, please always use the mobile phone number that you previously entered in the web browser. Only then we can grant a release.
OISTR works really easy. Simply enter your phone number, receive a TAN in the web browser and send it via SMS to the 22100. After the checking, you will receive a release.
OISTR is free. Only the costs for the SMS depending on your contract and the contract conditions are to be beared. An SMS to the 22100 will cost you a standard SMS according to your mobile phone contract, max. 20ct.
OISTR is not responsible for the execution of the transactions of third parties or is able to provide information. We see ourselves only as a mediator and protect the end customer against abuse of his mobile number in the context of fraud with third parties, and act as a kind of "infoscore" for B2B providers to check a phone number in advance of a transaction for the early detection of fraud risks or bad debt losses.
No, that's impossible. Please contact the merchant to cancel the order. All orders are made only at the respective merchant.
Authentication is for your safety. The authentication allows us to ensure that only you buy through your mobile phone number and no third party abuses it.
The authentication takes 20 seconds.
No. Your unlocked phone number is stored at OISTR and can therefore be used by all partners / merchants. If OISTR detects an irregularity in your purchasing behavior, it may lead to a renewed query or authentication. This is for the security of your mobile number.
This is a so-called SMS speed dial. It makes communication easier for you and OISTR.
Please contact our technical support under firstname.lastname@example.org
Please contact email@example.com with your question.
Please contact firstname.lastname@example.org
You have any further questions? Please contact email@example.com
phone: +49 351 87437 640
fax: +49 351 79625 26
fax: +49 351 79625 26