generated: '2026-10-07'
method: searched
source: https://developer.telesign.com/enterprise/changelog, https://developer.telesign.com/enterprise/openapi/ (deprecated flags in detect-api.json, legacy-phone-id-api.json, smart-verify-api.json), https://status.telesign.com/api/v2/status.json
versioning:
  scheme: path
  description: Each product carries its own major version in the URL path or server (rest-ww.telesign.com/v1 for SMS, SMS Verify, Voice Verify, Phone ID and Messaging; rest-ww.telesign.com/v2 for the Voice
    API; verify.telesign.com for the Verify and Silent Verify APIs; detect.telesign.com for Intelligence Cloud and Email Intelligence). OpenAPI info.version values range from 1.0 to 2.0 per product; there
    is no date-based or header-based API version.
  current:
    sms-verify-api: '1.0'
    verify-api: 1.1.0
    engage-api: '1.0'
    engage-api-voice: '2.0'
    accounts-api: '2.0'
    flow-builder-api: '2.0'
  docs: https://developer.telesign.com/enterprise/changelog
deprecation:
  policy_url: null
  policy: 'No standalone deprecation or sunset policy page is published. Deprecations are announced on the changelog and marked deprecated: true in the published OpenAPI files with a migration note in the
    operation description (on-prem Intelligence -> Intelligence Cloud API; Legacy Phone ID Contact and Number Deactivation -> Phone ID identity signals; Smart Verify -> Verify API). No Sunset or Deprecation
    response headers are documented.'
  headers: []
  announcements:
  - title: Intelligence Cloud API launched; details about migration for Intelligence customers
    url: https://developer.telesign.com/enterprise/changelog/intelligence-cloud-api-launched-details-about-migration-for-intelligence-customers
  - title: TLS certificate lifecycle change and certificate pinning guidance
    url: https://developer.telesign.com/enterprise/changelog/tls-certificate-lifecycle-change-and-certificate-pinning-guidance
    note: TLS certificates will have a maximum validity of 47 days, requiring significantly more frequent renewal and rotation; customers pinning certificates must change practice.
deprecated_operations:
- operationId: submitPhoneNumberForIntelligence
  spec: openapi/telesign-detect-api-openapi.yml
  path: POST /score/{complete_phone_number}
  successor: submitPhoneNumberForIntelligenceCloud (openapi/telesign-intelligence-cloud-api-openapi.yml)
  note: This page is for the on-prem version of Intelligence which is deprecated. Please complete your migration to the Intelligence Cloud API.
- operationId: getPhoneNumberDeactStatus
  spec: openapi/telesign-legacy-phone-id-api-openapi.yml
  path: GET /phoneid/number_deactivation/{complete_phone_number}
  successor: submitPhoneNumberForIdentity (Phone ID identity signals)
- operationId: getContactDetailsForPhoneNumber
  spec: openapi/telesign-legacy-phone-id-api-openapi.yml
  path: GET /phoneid/contact/{complete_phone_number}
  successor: submitPhoneNumberForIdentity (Phone ID identity signals)
- operationId: sendSmartVerifyCode
  spec: openapi/telesign-smart-verify-api-openapi.yml
  path: POST /v1/verify/smart
  successor: createVerificationProcess (openapi/telesign-verify-api-openapi.yml)
deprecated_products:
- name: Legacy Phone ID API
  note: whole contract marked deprecated
  spec: openapi/telesign-legacy-phone-id-api-openapi.yml
- name: Smart Verify API
  note: whole contract marked deprecated
  spec: openapi/telesign-smart-verify-api-openapi.yml
- name: Intelligence (on-prem)
  note: score endpoint in the Phone ID and Intelligence API deprecated in favour of the Intelligence Cloud API
  spec: openapi/telesign-detect-api-openapi.yml
sla: null
sla_note: No public uptime SLA is published; the security whitepaper states each data center is designed to carry 100 percent of forecasted traffic but states no availability commitment.
status_page: https://status.telesign.com/
status_page_api: https://status.telesign.com/api/v2/status.json
status_page_platform: Atlassian Statuspage (page id jsq5q2wyrrsg, "Telesign System")