Ory is the largest open source community in the world for cloud software application security. We maintain advanced open source security software solving authentication, authorization, access control, application network security, and delegation. Ory implements a variety of industry and best-practice standards including OAuth 2.0 / OAuth 2.1, OpenID Connect, Zero Trust Networking, Google Zanzibar Policy Framework, FIDO2 U2F, WebAuthn, TOTP, and more.

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<@U031SFEL5BR> take a look at the open PRs. It already in the works. We plan to use a number of services including Vonage and Twilio. 
What are your specific requirements? Perhaps you. An open an issue and connect to the PR. 

The #2033 is probably the most interesting to you:
<https://github.com/ory/kratos/pull/2033>

<https://github.com/ory/kratos/pull/1941>
<https://github.com/ory/kratos/pull/2184>

Thank you very much! I am subscribed to them, it's great that it's as close as a PR already!