fmMMS, our FileMaker solution that lets you send and receive MMS messages from the FileMaker Platform, has just been updated to include support for the RingCentral MMS Gateway based in the USA. You can send and receive MMS messages internationally with fmMMS and RingCentral.
You can download a trial version of fmMMS to test with the RingCentral MMS Gateway from here. You can also sign up for a trial account with RingCentral. More information on using the RingCentral Gateway with fmMMS is available on our support site.