How do I setup both inbound and outbound calling o...
# ask-ail
lively-lawyer-42128
07/09/2025, 10:25 AMHow do I setup both inbound and outbound calling on the same server?
t
tall-airline-16756
07/09/2025, 10:25 AMThanks for reaching out, Mayur. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
tall-airline-16756
07/09/2025, 10:26 AMTo set up both inbound and outbound calling on the same server in LiveKit, follow these steps:
• Step 1: Create an Inbound Trunk
◦ Configure your inbound trunk with your SIP provider (such as Telnyx or Twilio).
◦ Set up an FQDN connection for the inbound trunk and configure it to accept both inbound and outbound calls.
• Step 2: Create an Outbound Trunk
◦ Create an outbound trunk using the LiveKit SIP API or Server SDK.
◦ Configure the outbound trunk with necessary details like address, transport, and authentication.
• Step 3: Configure Dispatch Rules
◦ Create a dispatch rule using the SIP API or Server SDK.
◦ Set the dispatch rule to route inbound calls to a new room and to dispatch your agent there.
• Step 4: Make Outbound Calls
◦ Use the SIP API or Server SDK to initiate outbound calls.
◦ Create a SIP participant with settings including phone number and SIP trunk ID.
This setup allows inbound and outbound calls to coexist on the same server. You might need to adjust configuration based on your specific requirements.
For more details, refer to the LiveKit documentation related to SIP trunks, dispatch rules, and calling features.
Sources: Agents telephony integration | LiveKit Docs | Create and configure Telnyx SIP trunk | LiveKit Docs | Create and configure a Twilio SIP trunk | LiveKit Docs | lib/livekit/sip_service_client.rb | src/main/kotlin/io/livekit/server/SipServiceClient.kt | SIP overview | LiveKit Docs | Making calls using SIP | LiveKit Docs | SIP overview | LiveKit Docs
l
lively-lawyer-42128
07/09/2025, 10:43 AMRight now I ran into an issue where when I make an outbound call, and a room is created, the webhook triggers even if no inbound call has been placed
t
tall-airline-16756
07/09/2025, 10:43 AMHey there! Let me break down what's happening with webhooks when you make an outbound call. It might seem a bit technical, but I'll help you understand.
So, when you start an outbound call, LiveKit uses the
CreateSIPParticipantl
lively-lawyer-42128
07/09/2025, 10:44 AMIn the current docs what differentiates between an inbound call and an outbound call in webhooks?
t
tall-airline-16756
07/09/2025, 10:45 AMHey there! Let me break down how you can easily tell the difference between inbound and outbound calls in LiveKit webhooks. It's pretty straightforward once you know what to look for.
• SCD_INBOUND – this means an incoming call
• SCD_OUTBOUND – this means an outgoing call
• SCD_UNKNOWN – when the call direction is a bit of a mystery
Pro tip: The
sip.ruleIDcall_directionsip.ruleIDl
lively-lawyer-42128
07/09/2025, 11:18 AMroom {
sid: "RM_3dMfsBSVJmFz"
name: "Demo Room"
empty_timeout: 300
creation_time: 1752059792
enabled_codecs {
mime: "video/H264"
}
enabled_codecs {
mime: "video/VP8"
}
enabled_codecs {
mime: "video/VP9"
}
enabled_codecs {
mime: "video/AV1"
}
enabled_codecs {
mime: "audio/red"
}
enabled_codecs {
mime: "audio/opus"
}
version {
unix_micro: 1752059792280540
}
departure_timeout: 20
creation_time_ms: 1752059792139
}
id: "EV_WQBMSeRbxXRK"
created_at: 1752059792
these are the info I get in event.
t
tall-airline-16756
07/09/2025, 11:19 AMHey there! Let me break down the room details for you in a way that's super easy to understand. Think of this like a quick tour of how we organize our room information.
• sid: This is basically the room's unique name tag – kind of like its special ID.
• name: What we're calling the room (like "Demo Room" – simple and straightforward).
• empty_timeout: How long we'll wait before cleaning up an empty room.
• creation_time: The exact moment this room came to life (in computer time).
• enabled_codecs: The cool tech that helps your audio and video work smoothly (think H264, VP8, opus).
• version: A little timestamp that helps us track the room's history.
• departure_timeout: How we handle people leaving the room.
• creation_time_ms: An extra precise timestamp, down to the millisecond.
This is basically our room's personal blueprint – showing exactly how it's set up and configured.
Oh, and just so you know, each event also comes with its own
idcreated_atl
lively-lawyer-42128
07/09/2025, 11:20 AMHow do I know if it's inbound, outbound?
t
tall-airline-16756
07/09/2025, 11:20 AMHey there! Let me help you figure out how to tell if a call is coming in or going out. It's actually pretty straightforward – there are a few key fields you'll want to keep an eye on.
•
sip.callDirectionSCD_INBOUNDSCD_OUTBOUNDsip.ruleIDsip.trunkIDkindParticipant.Kind == SIPattributessip.callID3 Views