# Integration guides

> Step-by-step guides for wiring the Numbers Online phone-intelligence API into PBXs,
> softphones, AI voice agents, SBCs, and outbound compliance flows.

## PBX & softphones

- [FreePBX CID Superfecta source — Numbers Online caller names](https://numbers.online/md/docs/integrations/freepbx-superfecta)
  Add Numbers Online as a caller-name (CNAM) source in FreePBX's CID Superfecta module. On each inbound call, Superfecta asks Numbers Online for the…
- [FreePBX & Asterisk caller ID lookup — CNAM + inbound risk signal](https://numbers.online/md/docs/integrations/asterisk-freepbx)
  Call Numbers Online from your dialplan when an inbound call arrives to label, route, or challenge it before it reaches an extension. The API returns a…
- [FreeSWITCH & FusionPBX caller ID lookup — CNAM + inbound risk signal](https://numbers.online/md/docs/integrations/freeswitch-fusionpbx)
  Call Numbers Online when an inbound call arrives to label it with a caller name (CNAM) and an optional risk tag before it reaches an agent or…
- [3CX CRM integration — inbound caller-name lookup](https://numbers.online/md/docs/integrations/3cx)
  Add Numbers Online as a server-side CRM source so 3CX can resolve unknown inbound callers to a business name, tenant-wide, with no client-side…
- [MicroSIP caller ID for Windows — caller name, line type & risk signal](https://numbers.online/md/docs/integrations/microsip)
  Show a caller's name, line type, and a low-confidence risk signal as a Windows toast the moment an inbound call rings your MicroSIP softphone. MicroSIP…
## AI voice agents

- [AI voice agents — MCP server, Vapi & Retell](https://numbers.online/md/docs/integrations/ai-voice-agents-mcp)
  Give an AI voice agent (Vapi, Retell, Pipecat, LiveKit) read-only phone intelligence in one call: who is this inbound caller, and is this outbound…
## SBC / SIP operators

- [Kamailio & OpenSIPS SIP redirect call screening — a ClearIP-compatible SBC signal](https://numbers.online/md/docs/integrations/sbc-sip-redirect)
  Add a supplementary call-screening signal to a session border controller using Numbers Online. On an inbound INVITE your SBC asks for a low-confidence…
## Outbound & compliance

- [Outbound pre-call check & call-provenance — do-not-contact scrub + spoofing defence](https://numbers.online/md/docs/integrations/precall-call-provenance)
  Two endpoints for outbound voice/SMS senders — dialers, SBCs, and AI voice agents. Run a pre-call scrub on the number you are about to dial, and enrol…
- [FCC robocall-mitigation evidence bundle — a signed number-status check log](https://numbers.online/md/docs/integrations/fcc-evidence-bundle)
  Export a signed, tamper-evident, PII-free record of the supplementary number-status checks your account performed over a window, built from Numbers…
## Accounts & onboarding

- [API-first onboarding — white-label enrollment in your own admin](https://numbers.online/md/docs/integrations/api-first-onboarding)
  Run number onboarding, profile/identity management, verification payment, and trust monitoring for your customers entirely from your own admin UI,…

---

Numbers Online — community-powered phone-number trust signals. Every figure on this
page is a supplementary, low-confidence signal — advisory, not a verdict on any number
or its owner.

- Canonical page (HTML): https://numbers.online/docs/integrations
- Report a call: https://numbers.online/report · Listed in error? Request removal: https://numbers.online/opt-out
- Machine guide to the phone-intelligence API: https://numbers.online/llms.txt · OpenAPI: https://numbers.online/api/spec