The 933 Service


Molly Katolas


Details are available in the Bandwidth 9-1-1 Implementation Guide


Information Regarding the 933 Service

The 933 service is a courtesy text-to-speech service that Bandwidth offers as part of the 9-1-1 package. When an end user dials 933, it will play back the TN and address that is provisioned in the dashboard. This service is used as part of the 9-1-1 testing performed during the onboarding process, prior to the live 9-1-1 calls, and is used primarily to test connectivity to the emergency IPs for 9-1-1 service. Secondarily, it tests to make sure the provisioned address is being broadcast.

As with any text-to-speech service, there may be parts that are not appropriately recognized and therefore, skipped in the playback. The point to using the 933 service is to verify that:

  • Calls are reaching the SBCs
  • Some resemblance of the address provided in the dashboard is being represented

For example, if the 9-1-1 address entered is "123 N Main St, Ste 400, Denver Colorado 80205", the 933 service would likely read back "123 Main, Denver Colorado 80205". This would be considered a successful call. If it read back something entirely different, such as "2963 Stormy Ave, El Paso TX", this would indicate a problem either with the 933 service or with the address in the dashboard.

The 933 service may be used anytime (please limit calls to 1 call per minute), however, it is a courtesy service and is not meant to be used as a fully functional address verification service. To verify a full address, it is best to check the provisioned address in the dashboard directly (or via API call).

Article is closed for comments.