Messages from signotp

SignOTP is a service that provides mobile verification codes through SMS messages. Based on the received text messages, it seems to be used by D7 for their own authentication purposes. Additionally, SignOTP offers temporary phone numbers without physical SIM cards for online verifications and can receive incoming SMS using virtual numbers. It's unclear what InfoCert TOP Documentation or Send Message - Direct7 Networks have to do with SignOTP as they appear in web search results alongside this service but don't seem directly related. Overall, it appears that SignOTP is a tool designed to provide secure and convenient two-factor authentication via mobile devices for various applications or websites requiring user validation before granting access or performing certain actions.