"Other" SMS Providers

Summary

We would love to leverage SMS, however we are running into a bit of a challenge when it comes to identifying the proper request details, etc.

Content

Attention configuration; SMTP; SMS; HTTP, and/or all other Oracle experts:

Our Company is considering using SMS Messaging for Recruiting...I am curious if anyone has been successful with using an "Other" provider? I am new to the world of tech, so this might be a silly question, but I will ask it anyways:

Is it possible to use something like O365 as the "Other" provider here? Is it worth the time to explore further? We are open to the idea of other providers, however if there is a resource we already have available to us, would like to evaluate leveraging that, first.