Use of SMS signature

[sunube]

In the documentation I have seen that you need to use Two-Factor Gateway, that app is not updated and only works up to version 25.

Is there an alternative?

[vitormattos]

We disabled this feature because we haven't any customer using this. But this isn't a problem, if you wish to have this, you can talk with our sales team. We will love to have a partner that wish this feature to be possible reactivate this.