How do I initiate phone calls from frontend, let's say I have space where I can enter a phone number and a button that says call which should initiate a call @millions-hair-24956

To initiate phone calls from a frontend application using LiveKit, you need to set up a SIP trunk and use the LiveKit API to create a SIP participant for outbound calls. Here's a high-level overview: 1. Set Up SIP Trunk: First, configure a SIP trunk with a provider like Twilio or Telnyx. This involves creating an outbound trunk and associating it with your phone number. You can follow the steps in the SIP Quickstart guide to set up your SIP trunk. 2. Create SIP Participant: Use the LiveKit API to create a SIP participant. This involves sending a request to the LiveKit server with the phone number to dial and the room details. You can use the

createSipParticipant

method from the LiveKit SDK to initiate the call. Here's a basic example in Node.js:

const { SipClient } = require('@livekit/server-sdk');

   async function createSipParticipant(phoneNumber, roomName) {
     const sipClient = new SipClient(process.env.LIVEKIT_URL, process.env.LIVEKIT_API_KEY, process.env.LIVEKIT_API_SECRET);
     try {
       await sipClient.createSipParticipant(process.env.SIP_TRUNK_ID, phoneNumber, roomName, {
         participantIdentity: `sip_${phoneNumber}`,
         participantName: 'SIP Caller',
       });
       console.log('SIP participant created successfully.');
     } catch (error) {
       console.error('Error creating SIP participant:', error);
     }
   }

   createSipParticipant('+98765432109', 'Test SIP Room');

Would you like more detailed steps or a specific code example for your frontend setup? Sources: - Making calls using SIP 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.