Ultravox (Dashboard)

Use your Unpod number as the SIP trunk for Ultravox outbound calls. You gather credentials from both dashboards, then Ultravox places the call through Unpod over SIP - reaching regular phone numbers worldwide. Prefer raw requests? See the API guide.

You need: an Unpod number on a Bridge, and an Ultravox account with an agent and an API key.

Treat your SIP username/password and API key as secrets - never paste them into shared docs or screenshots.

What you’ll collect

Service	Item	Where
Ultravox	API key	Ultravox dashboard
Ultravox	Agent ID	Ultravox dashboard
Unpod	SIP domain / address	Number’s trunk → Origin Endpoint
Unpod	Username	Number’s trunk → Origin Endpoint
Unpod	Password	Number’s trunk → Origin Endpoint
Unpod	Phone number	Telephony → Numbers

Part 1 - Get your Ultravox agent + API key

Create an agent

In the Ultravox console, open Agents and create an agent (set its system prompt and voice). Copy its Agent ID - you’ll pass it in the call request.

Ultravox - Agents page, create a new agent

Generate an API key

Generate an API key in the Ultravox console and copy it. Ultravox - API key

Part 2 - Get your Unpod SIP credentials

Connect your number

In Telephony, select your number (shown as Not Linked) and click Connect to set up its SIP trunk.

Copy the origin-endpoint credentials

Open the trunk panel and under Origin Endpoint Details copy:

Address - your Unpod SIP domain (e.g. sip-lb1.unpod.tel).
Username and Password (under Authentication).
Your phone number in E.164 (e.g. +918071539111).

Unpod - trunk origin endpoint credentials

Part 3 - Place the call through Ultravox

Ultravox triggers the outbound call over your Unpod trunk. There’s no dashboard button for this - send one request to Ultravox’s Create Agent Call endpoint with the SIP details from Parts 1-2:

cURL

curl -X POST https://api.ultravox.ai/api/agents/YOUR_AGENT_ID/calls \
  -H "X-API-Key: YOUR_ULTRAVOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "medium": {
      "sip": {
        "outgoing": {
          "to": "sip:+919999999999@<your-unpod-sip-domain>",
          "from": "+918071539111",
          "username": "<unpod-username>",
          "password": "<unpod-password>"
        }
      }
    },
    "firstSpeakerSettings": { "user": {} }
  }'

to - destination number as a SIP URI at your Unpod domain.
from - your Unpod number (caller ID).
username / password - the Unpod origin-endpoint credentials.

The agent answers when the callee picks up. See the API guide for the full request/response and debugging.

Troubleshooting

Symptom	Likely cause	Fix
SIP `403`	Auth rejected	Re-copy the Unpod Username/Password (case-sensitive)
SIP `407`	Proxy auth required	Confirm `username`/`password` are sent in `sip.outgoing`
SIP `480`	Destination unavailable	Verify the `to` number and that your Unpod number is active
Call never rings	Wrong SIP domain	Use the exact Address from the Unpod origin endpoint

Do it with code

Full request/response + SIP log debugging.

All platforms

Back to the integrations overview.

Getting Started

Integrations

Numbers

Trunks

Calls

Ultravox (Dashboard)

What you’ll collect

Part 1 - Get your Ultravox agent + API key

Part 2 - Get your Unpod SIP credentials

Part 3 - Place the call through Ultravox

Troubleshooting

Do it with code

All platforms

​What you’ll collect

​Part 1 - Get your Ultravox agent + API key

​Part 2 - Get your Unpod SIP credentials

​Part 3 - Place the call through Ultravox

​Troubleshooting

Do it with code

All platforms

What you’ll collect

Part 1 - Get your Ultravox agent + API key

Part 2 - Get your Unpod SIP credentials

Part 3 - Place the call through Ultravox

Troubleshooting