Services you can trust
We have priority zero routes that let us deliver informational and OTP/2FA SMS safely, in seconds.
Informational SMS delivered with priority
Send critical SMS (OTP codes, 2FA, transactional notifications) safely and in seconds with Calisero.
- Payment term SMS notifications
- Order status SMS notifications
- Courier / parcel delivery SMS notifications
- OTP and 2FA codes sent over SMS
- SMS with important alerts and notifications
- Appointment confirmations and reminders over SMS
Monday, 16 February
Your account credit is below 20.00 EUR. Please top up your account.
09:33
Send One-time PIN (OTP/2FA) SMS in seconds
Verify the user identity, secure account access and validate sensitive actions.
- Six-character OTP code managed by Calisero
- Built-in anti-fraud mechanisms
- Advanced reporting
- Monitoring for every validation attempt
- The option to customise the messages
- "Verify" sender included
Thursday, 9 April
H8REV9 is your validation code for YourCompany. Valid for 3 minutes.
14:25
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