High Volume SMS

Last updated: 2021-11-11 Contributors NoneMichael StoweJohn WangCraig ChanByrne ReesePaco Vu
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Getting Started with High Volume SMS!

RingCentral's High Volume SMS API allows you to send up to 250,000 texts per day and 10,000 texts per API request from a single number that meets the wireless industry guidelines for commercial SMS. This can be used for popular use cases such as appointment reminders, marketing campaigns, password resets, and more.

The following guides have been created to assist developers in getting started quickly:

Enroll in High Volume SMS beta »

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Key SMS Features

RingCentral High Volume SMS supports the following key features:

Limitations of High Volume SMS

High Volume SMS does not currently support the following:

  • Sending images, vcards and other files (MMS)
  • Group messaging (MMS)
  • International SMS messaging
  • Numbers outside the US and Canada
  • Scheduling SMS in advance
  • Developer sandbox

If you need to send files, communicate with a group, or send to international destinations, please consider our standard SMS API.