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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.

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Aircall Integration

Connect Aircall numbers to Famulor via SIP forwarding
Aircall does not expose a wholesale SIP trunk. To connect Aircall numbers to Famulor, you use Aircall’s SIP Forwarding option (Enterprise plan and above) — Aircall delivers inbound calls to a generic SIP destination of your choosing, which is your Famulor SIP address.
Plan requirement: SIP Forwarding is only available on Aircall Custom / Enterprise plans. Confirm with your Aircall account manager before starting.
No SIP REFER support. Aircall does not honor REFER for cold transfers. If your Famulor flow needs to transfer to a human, design the flow to place a fresh outbound call instead.

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Step 1: Enable SIP Forwarding on the Aircall number

  1. Sign in to the Aircall Dashboard.
  2. Go to Numbers → Select the number → Settings → Routing.
  3. Choose SIP Forwarding as the routing type. (If the option is missing, your plan does not include it — contact Aircall.)
  4. Enter your Famulor SIP address as the destination: 
    sip:xxx.sip.livekit.cloud
    Use TCP transport unless your Famulor project advertises TLS.
Find your Famulor SIP address: Famulor dashboard → Phone Numbers → Integrate SIP trunk → Our SIP address.

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Step 2: Configure outbound (Famulor → Aircall)

For Famulor to place outbound calls that present an Aircall number as caller ID, you have two paths:
  • Aircall Outbound API — Aircall offers an Outbound Calling API; this is not a SIP integration and is out of scope for this guide.
  • Carrier-side outbound — port the number to a SIP-trunking-capable carrier (Telnyx, Twilio, Plivo, etc.) and route outbound through them. The Aircall number remains “live” only for inbound; outbound uses the new carrier.
Most Famulor customers using Aircall pick the second path because Aircall’s outbound API doesn’t fit AI-call orchestration well. Talk to support if you need help planning the port.

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Step 3: Import the number into Famulor

  1. Open your Famulor dashboard and go to Phone Numbers → Integrate SIP trunk.
  2. Fill in: 
    Phone number:   Your Aircall number in E.164 (e.g. +49 30 555 0123)
Username:       Leave empty (Aircall SIP forwarding does not use digest auth)
Password:       Leave empty
  3. Authorization type: IP address. Add Aircall’s published SIP egress IP ranges (request the current list from Aircall support — Aircall does not commit to a public, fixed range).
  4. Country: the country of the Aircall number.

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Step 4: Verify

Call the Aircall number — the AI should answer. Check the Aircall call log to confirm SIP Forwarding is being used (not the default app routing).

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Common issues

The number’s primary routing is still set to “Ring users” or a team. Make sure SIP Forwarding is the active routing type, not just configured as a fallback.
Aircall numbers cannot be used as outbound caller ID via SIP — only via Aircall’s Outbound API or by porting. See step 2.
Force G.711 (PCMU/PCMA) on the Aircall side and confirm that any corporate firewall in front of your Famulor egress is not stripping RTP.
Need help with setup? Our support team can advise on whether SIP Forwarding or porting is the right path for your Aircall setup.
Related pages: SIP Integration and SIP Troubleshooting.