Seeking Guidance on Integrating SignalWire with Va...
# support
m
I'm currently working on integrating SignalWire with Vapi.ai to power AI-driven voice calls for my project.Has anyone successfully integrated SignalWire with Vapi.ai? Any tips or insights would be greatly appreciated!
v
- Webhook delivery inconsistencies - API errors (520, 404) - Connection issues between services - WebSocket connection problems - Configuration issues with SIP and network settings Is there anything specific about the integration process you'd like me to elaborate on? Sources: - [Discord Thread on Integration Approach](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1288511710600102052) - [Discord Thread on Integration Steps](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1343397177182912553) - [Vapi Server SDKs Documentation](https://docs.vapi.ai/server-sdks) - [Discord Thread on Configuration Steps](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1307831730073501767)
Hi there! đź‘‹ I don't have specific information about individual users who have successfully integrated SignalWire with Vapi.ai, but I can definitely help you with the integration process! Here's how you can integrate SignalWire with Vapi.ai for AI voice agents: ## General Integration Approach According to the [information I found](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1288511710600102052), you'll need to develop an adapter or middleware that facilitates communication between SignalWire and Vapi. This involves: 1. Using SignalWire's APIs to handle the telephony aspect 2. Using Vapi's APIs to manage the voice interactions ## Integration Steps The integration process typically involves these key steps: 1. Set up your webhook endpoint - This will receive calls from SignalWire 2. Process the call as needed - Handle the incoming call data 3. Forward to Vapi using TwiML when required - Connect the call to Vapi's voice AI capabilities [Source](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1343397177182912553) ## Utilizing Vapi's SDKs Vapi offers server-side SDKs in various languages (Python, TypeScript, Java, Ruby, C#, and Go) that can help with the integration. These SDKs are [open source and available on GitHub](https://docs.vapi.ai/server-sdks). ## Configuration Steps For a successful integration, you'll need to: 1. Configure Your SignalWire System - Set up SIP Trunks, Call Routing, and Webhooks 2. Develop Your Application - Create an app using Vapi's Voice API to interact with your AI model 3. Deploy Your Application - Host your app on a server that can communicate with both Vapi and SignalWire 4. Test and Iterate - Make test calls to ensure everything works as expected [Source](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1307831730073501767) ## Known Issues to Watch For Some potential issues to be aware of:
p
Hey, could you help me understand your usage? What you want to get done with SignalWire and what you've done until now to integrate SignalWire with VAPI. This will help me understand your purpose and steps you've taken to get things done so that I can suggest something which is already not been tried out and can contribute better.
m
Thanks for getting back to me! Here’s a quick overview of what I’m trying to achieve and the steps I’ve already taken: What I want to do:I want to connect my Vapi.ai voice agent to SignalWire using a SIP trunk so it can make outbound calls to PSTN numbers (US/UAE mainly). I’m building an AI-powered voice outreach system, and SignalWire is my preferred SIP provider due to pricing and flexibility. What I’ve done so far: Created a SIP endpoint on SignalWire with SIP URI:vapiuser@firstchoicesolutionllc-moid2232.sip.signalwire.com Enabled SIP registration in Vapi’s SIP trunk settings and entered: SIP URI/Domain: firstchoicesolutionllc-moid2232.sip.signalwire.com Port: 5060 Transport: Tried UDP, TCP, and TLS Username/Password: From SignalWire SIP endpoint Enabled “Use public IP in Contact Header” Encryption: Set to “Optional” on both SignalWire and Vapi. Caller ID: Using a verified number from SignalWire (+1 202-503-1955) Outbound Policy: Passthrough (to allow PSTN dialing) Codecs & Ciphers: All default SignalWire options selected and supported. Issue:Whenever a call is initiated, it fails with this error:"call.in-progress.error-sip-telephony-provider-failed-to-connect-call" If you could help me identify what might be missing, misconfigured, or unsupported between Vapi and SignalWire, I’d really appreciate it. Looking forward to your suggestions! Best regards,
p
Hey, could you share the recent call ID so I can try to find out the PCAP file and eventually get to know what's going wrong on your side?