Can we connect third party(SMS provider's) system using RFC with RESTful API?

Hi Gurus,

My requirement is to send SMS from SAP System.

I have searched in SAP blogs and Community, every one is suggesting to create Prot in SCOT and SICF to trigger SMS.

So, my question is "IS THERE ANOTHER WAY i,e RFC TO CONNECT THIRD PARTY's SMS SERVER?" using REST API. Because SMS provider given us only REST API.

If possible how?

Waiting for reply!!

Thanks & Regards,

Harish.