The 933 Service


Molly Katolas


Details are available in the Bandwidth 911 Implementation Guide


Information Regarding the 933 Service

The 933 service is a courtesy text-to-speech service that Bandwidth offers as part of the 911 package. When an end user dials 933, it will play back the TN and address that's provisioned in the Dashboard. This service is used as part of the 911 testing performed during the onboarding process, prior to the live 911 calls, and is used primarily to test connectivity to the emergency IPs for 911 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 911 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's 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.