THE LINUX FOUNDATION PROJECTS

Verified Caller

API Description
Use Cases

The Verified Caller API API is applicable to institutions in several industries such as government, finance, express delivery, healthcare, education, etc. who have outbound call needs.

  • Healthcare: When a hospital’s call center calls a rehabilitation patient to arrange a follow-up, patient may doubt the calling number and therefore usually refuse the call. By calling this API, the hospital can ensure that either their brand is displayed to the callee, or a short message is delivered to the callee in advance. Furthermore, the call center may choose to show a display name specific to the context of the call. In summary, use of the API improves connection rates and customer service satisfaction by improving trust.

Similar use cases are applicable to:

  • Telesales
  • Customer Support
  • NGO Outreach
  • Official communications by government institutions/authorities
Benefits

Using the Verified Caller API offers several advantages:

  • Anti-fraud: By providing accurate information to the called party, it helps prevent fraud. The called person can be sure of the caller’s identity, reducing the risk of being deceived by malicious calls.
  • Flexible Activation: The features of this API can be activated on the basis of call participants and time. This flexibility allows enterprises to better control its usage according to their actual needs, which is both convenient and cost-effective.
  • Improving Effective Connection Rate: For enterprises with outbound call needs, such as those in government, finance, express delivery, healthcare, and education industries, this API enables verification of the identity of the caller. For example, when a hospital calls rehabilitation patients, the patients are more likely to answer the call, thus significantly improving the effective connection rate.
  • Cost Saving: A higher connection rate means less time and resources wasted on repeated calls. Enterprises can achieve more with less effort, resulting in cost savings in the long run.
  • Enhancing Enterprise Image: When enterprises can have their identity verified through this API, it gives a positive impression to the called customers. This helps enhance the enterprise’s image and credibility in the market.

API Portfolio: Authentication and Fraud Prevention

Sub Project Wiki: N/a, Independent Sandbox, See API Wiki
(incl. how to meet the team)

API Wiki: Verified Caller

API Repository: Verified Caller

API Repository Status: Sandbox

API Status: Initial

API Version(s) and Release Date(s):

  • v0.1.0 (15.09.2025), Fall25 meta-release

API availability: Information which APIs are available in which country and network, and how to get access can be found on the GSMA public launch status page.

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