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Use this guide if your team already manages telephony inside 3CX and you want calls to route through itellicoAI.
1

Configure 3CX SIP trunk

  1. Open your 3CX Management Console
  2. Go to SIP Trunks → Add SIP Trunk
  3. Select Generic SIP Trunk as the provider
  4. Enter the itellicoAI SIP endpoint (sip:50ebbp4vhpr.eu.sip.livekit.cloud) as the registrar or proxy
  5. Restrict the transport protocol to TCP
  6. Configure authentication credentials
  7. In your 3CX firewall, allow inbound SIP traffic from the static IP ranges itellicoAI uses (143.223.88.0/21, 161.115.160.0/19)
  8. Set up inbound routing rules to forward calls to itellicoAI
2

Create SIP Trunk in itellicoAI

Go to Telephony → SIP Trunks → Create SIP Trunk:
  • Name: 3CX
  • Termination URI: Your 3CX SIP proxy address
  • SIP Auth Username/Password: Credentials configured in 3CX
  • Allowed IPs: Your 3CX server’s public IP address
3

Test the connection

Make a test call through your 3CX system to verify calls route to itellicoAI correctly.