When adding a signer, you must enter his/her telephone number so that he/she can receive the security code by SMS, enabling him/her to authenticate and sign.
If your signer has a foreign telephone number, simply enter the relevant country code when adding the signature field.
For example: GB country code is +44, France is +33, Italy is +39
Our Yousign electronic signature services are designed to send security codes by SMS message or by voice server over more than 220 countries around the world.
French Overseas Departments/Regions
Some operators do not accept certain number aliases.
To maximize your chances of reception, please use the following codes:
Guadeloupe (+590)
Reunion Island (+262)
French Guiana (+594)
Martinique (+596)
Mayotte (+262)
USA/Canada/Denmark
The formatting of these numbers often makes it impossible to determine whether it's a mobile or a landline. As a result, the authentication code is often transmitted directly by voice server.
You can tell the signer to be close to their landline when signing.
China
SMS one-time password (OTP) cannot be delivered to phone numbers in China due to tightened local restrictions on inbound SMS traffic. As a result, signers with Chinese phone numbers cannot use security codes by SMS for authentication.
Please use one of the following alternatives:
Use Email security code by updating your organization's settings (for all signatures) or when creating a new signature request.
If you are using the Advanced Electronic Signature (AES), consider upgrading to Qualified Electronic Signature (QES) for Chinese signers, which does not rely on SMS security code.
You didn't receive a security code by SMS ? Check out this article to find out more.