---
title: "One number. The right destination."
canonical: "https://bird.com/voice-api/features/inbound-routing"
---

# One number. The right destination.

Choose how each Bird number answers. Deliver calls to a SIP trunk, forward them to a verified destination, or leave the route closed.

## A customer calls. Your route answers.

Change the number’s route to see where the call goes.

[Explore incoming calls](/docs/guides/voice/receiving-calls)
Interactive illustration with fictional records. No account operation is performed.

## Set the number route. Prepare the receiver.

Route calls to the right destination.

### Choose one answer route.

An eligible number has one incoming action: SIP trunk, verified forwarding or reject. Reject is the default. Verifying an external caller ID does not bring its incoming calls to Bird.

### Configure the trunk first.

Enable inbound calling and provide a delivery gateway before assigning the number. Lower gateway priorities are tried first; equal priorities share traffic. Match the dialed-number format to your PBX.

### Track forwarded calls as two legs.

Forwarding creates a second call to the verified destination. Keep the incoming and outgoing records distinct when investigating routing, duration and charges.

[Explore Voice incoming calls →](/docs/guides/voice/receiving-calls)

## Keep building with Voice.

Prepare the receiving application and inspect the individual calls it handles.

[SIP trunking Connect your phone system to the telephone network. →](/voice-api/features/sip-trunking)

[Call sequences Give callers a clear path to the answer they need. →](/voice-api/features/call-sequences)

[Call logs Understand how a call started, connected and ended. →](/docs/guides/voice/call-log)

[Explore Voice →](/voice-api)

## 规模扩展 不失控。

在工作区中组织团队，控制 API 访问权限，通过审计日志追踪变更。

[工作区](/docs/guides/workspaces)[团队角色](/docs/guides/users-teams-roles)[API 身份验证](/docs/guides/authentication)
[了解企业方案](/enterprise)

## Start with Voice. Build across channels with Bird.

[Get Started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Fvoice%2Fonboarding) · [Contact Sales](/demo?product=voice)

[Email](/email-api) · [SMS](/sms-api) · [WhatsApp](/whatsapp-api) · [Apple Messages](/apple-messages-api) · [Voice](/voice-api)



## Related resources

- [Voice overview](/docs/guides/voice/overview) (docs)
- [What is a voice API?](/explained/voice/what-is-a-voice-api) (answer)

[Get an implementation brief](/learn/workspace?topic=voice)