> ## Documentation Index
> Fetch the complete documentation index at: https://docs.famulor.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Caller ID verification

> Verify a number you already own so it can be presented on outbound calls

Want your own existing number — a personal line, an office line, whatever your customers already recognize — to show up on outbound calls, without buying a number or setting up a SIP trunk? Verify it as a caller ID.

<Note>
  Caller ID verification is outbound only. It doesn't create an inbound route — calls placed *to* that number are never answered by an assistant. To also receive calls, [buy a marketplace number](/telephony/phone-numbers) or [forward your existing line to one](/telephony/call-forwarding-setup) instead.
</Note>

## How verification works

<Steps>
  <Step title="Open the verification form">
    Go to **Settings → Numbers**, open the **Add a number** menu, and choose **Verify caller ID**.
  </Step>

  <Step title="Enter the number">
    Enter the number in E.164 format (for example `+4930123456`) and an optional label, then start verification.
  </Step>

  <Step title="Answer the call and enter the code">
    The platform calls that number immediately and shows a short code on screen. Whoever answers keys that code in on the phone.
  </Step>

  <Step title="Wait for confirmation">
    The status updates automatically once the code is confirmed — no page refresh needed, though you can press **Check status** to look right away. The number is now a verified caller ID.
  </Step>
</Steps>

<Tip>
  Every attempt places a real call, so verification is rate-limited: one attempt per person and five per workspace every 15 minutes. Hit the limit and the button shows a countdown until you can start the next one.
</Tip>

## Using a verified caller ID

Once verified, the number appears alongside your other numbers under **Numbers**. Open **Configure** on that row and connect it to an assistant under **Outbound** — outbound calls placed by that assistant, by a campaign, or through the `make_call` API/MCP tool then present the verified number to the person you're calling.

Calls placed with a verified caller ID still count against your [daily outbound allowance](/telephony/outbound-limits), the same as marketplace numbers. Only calls placed over your own [BYO SIP trunk](/telephony/sip-trunks) skip that allowance.

If you connect numbers through a SIP trunk instead, your provider — not this verification flow — controls which caller ID is presented; configure it on the provider side.

## Legal considerations

<Warning>
  Some countries restrict presenting a number you don't have the right to use. Verify only numbers you own or are authorized to use, and check local rules before relying on a verified caller ID for outbound campaigns.
</Warning>

## API and MCP

Manage caller IDs with the Public API — `GET`/`POST /api/v1/caller-ids`, `PATCH`/`DELETE /api/v1/caller-ids/{id}` — or the equivalent MCP tools: `create_caller_id`, `list_caller_ids`, `update_caller_id`, `delete_caller_id`.