narrow-beige•2d ago

Vapi with telnyx numbers disconnect

Hey guys, I hooked up telnyx numbers through the api key but it seems like the voice isn't connecting properly and the customer isn't able to hear the agent.

5 Replies

Vapi Support Bot•2d ago

To resolve your Telnyx voice connection issues, switch to SIP integration for more reliable audio. Here’s how to create a SIP trunk credential in Vapi:

curl -X POST https://api.vapi.ai/credential \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_VAPI_PRIVATE_KEY" \
  -d '{
    "provider": "byo-sip-trunk",
    "name": "Telnyx Trunk",
    "gateways": [{ "ip": "sip.telnyx.com", "inboundEnabled": false }],
    "outboundAuthenticationPlan": {
      "authUsername": "YOUR_SIP_USERNAME",
      "authPassword": "YOUR_SIP_PASSWORD",
      "sipRegisterPlan": { "realm": "sip.telnyx.com" }
    }
  }'

curl -X POST https://api.vapi.ai/credential \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_VAPI_PRIVATE_KEY" \
  -d '{
    "provider": "byo-sip-trunk",
    "name": "Telnyx Trunk",
    "gateways": [{ "ip": "sip.telnyx.com", "inboundEnabled": false }],
    "outboundAuthenticationPlan": {
      "authUsername": "YOUR_SIP_USERNAME",
      "authPassword": "YOUR_SIP_PASSWORD",
      "sipRegisterPlan": { "realm": "sip.telnyx.com" }
    }
  }'

Replace the placeholders with your actual credentials and test your calls again. This should improve voice connectivity between Vapi and Telnyx. Source: - Telnyx SIP integration documentation

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

narrow-beigeOP•2d ago

so I switched to telnyx SIP trunk An error occurred in this call: call.in-progress.error-providerfault-outbound-sip-403-forbidden new error

narrow-beigeOP•2d ago

ive reduced the bundles pushd by make to 5 rows so that i dont go over any concurrency limit

Vapi with telnyx numbers disconnect

Did you find this page helpful?