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Onderteken uw documenten met SMS OTP

SMS OTP is een elektronische ondertekenmethode gebaseerd op een eenmalig wachtwoord dat naar het mobiele telefoonnummer van de geregistreerde ondertekenaar wordt verzonden.
Krijg handtekeningen van overal met alleen een mobiele telefoon.
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Waarom kiezen voor SMS OTP?

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Gebruiksvriendelijk

SMS OTP is eenvoudig te gebruiken. Uw ondertekenaars doorlopen een aantal korte stappen, wat resulteert in een hoge conversieratio en een veilige, naadloze ervaring.
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Toegankelijk

SMS OTP is een wereldwijd erkende ondertekenmethode. Iedereen met een mobiele telefoon kan documenten digitaal ondertekenen.
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Sterke validatie van identiteit

De SMS OTP ondertekenmethode is rechtsgeldig volgens eIDAS.
Wettelijk bindende elektronische handtekening

eIDAS forms a legal framework for accepting electronic identities and signatures in Europe. According to this regulation, the SMS OTP signing solution is among the most advanced Simple Electronic Signatures (SES) methods available through Nitro Sign.
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Veelgestelde vragen over SMS OTP

What is SMS OTP?

SMS OTP is an electronic signing method based on a one-time password sent to the mobile phone number of the registered signer/signatory. 

This signing method requires the signatory to verify their identity by confirming the last four digits of their phone number. Once confirmed, they will receive a code via SMS, which they must enter to sign the document.

You might wonder how this differs from email OTP. While both methods send a code to the signatory, SMS OTP includes an extra layer of authentication—a mobile phone—in addition to the email address used to access the document. This added factor enhances security and increases the level of uniqueness.

How does signing with SMS OTP work?

Signing documents electronically with an SMS OTP is user-friendly and straightforward. The signing method is one of the available signature methods in Nitro Sign, our electronic signatures platform.
To sign with this method, the signatory needs a mobile phone with a number known by the initiating party. If no mobile number has been registered in Nitro Sign, the SMS OTP signing option will not be available.

The following is an example of SMS OTP in use:

  1. The signatory receives a link including a document (or package of documents) that they can sign with an SMS OTP.
  2. After clicking on the link, a signer portal opens automatically where the signatory confirms the last 4 digits of the phone number that was known by the initiator.
  3. The system sends an SMS with an OTP to the signatory's mobile phone.
  4. The signatory types the code into the signing portal and confirms the documents are signed.

Who can use SMS OTP?

According to Statista, the current number of mobile phone users in the world today is 4.78 billion, making up 61.20% of the world’s population. They are all potential users who can sign documents electronically with SMS OTP.

(Source: https://www.bankmycell.com/blog/how-many-phones-are-in-the-world)

Is signing with SMS OTP legally binding?

The answer is yes! In Europe, the U.S., and most countries around the world, digital signatures are legally binding and recognized in their local legislations, such as UETA E-Sign Act in the U.S. and Canada, eIDAS in Europe, and ZertES in Switzerland.

Let's take a closer look to the Electronic Identification and Trust Services Regulation (eIDAS Regulation 910/2014/EC). eIDAS forms a legal framework for accepting electronic identities and signatures in Europe. According to this regulation, the SMS OTP signing solution is among the most advanced Simple Electronic Signatures (SES) methods available through Nitro Sign. 

When customers implement an onboarding procedure, linking their mobile number to the identity of the person, the SES status can even be upgraded to an AES (advanced electronic signature) status.

What are the advantages of SMS OTP?

  1. This signing method offers wide coverage because anybody with a mobile phone can sign with an SMS OTP.
  2. People can sign documents from anywhere in the world. Most countries are by default supported in Nitro Sign. All your signers need is a mobile phone.
  3. This user-friendly signing method doesn't require additional tokens or smart-card readers.
  4. Signers are offered an intuitive and user-friendly signing method while also receiving a secure validation of their identity.

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