Hi there! 👋 I don't have the exact navigation path within the Vapi documentation or dashboard where you can find your specific SIP URI, but I can definitely help with where to look and the format to expect. You can find the Vapi SIP URI in the [Vapi documentation](https://docs.vapi.ai/advanced/sip) or by accessing your [Vapi account dashboard](https://docs.vapi.ai/advanced/sip). The SIP URI follows this format:

sip:PHONE_ID@sip.vapi.ai;external_reference_id={SOME ID}

or simply

sip:username@sip.vapi.ai

, where you can choose any username you prefer. If you want to create a personalized origination SIP URI, you can do so using the Vapi API with this call:

curl --location 'https://api.vapi.ai/phone-number' \
    --header 'Authorization: Bearer your-vapi-private-api-key' \
    --header 'Content-Type: application/json' \
    --data-raw '{
        "provider": "vapi",
        "sipUri": "sip:username@sip.vapi.ai",
        "assistantId": "your-assistant-id"
    }'

When configuring SIP trunking, remember that the hostname is always

sip.vapi.ai

with UDP transport protocol, as mentioned in the [Vapi documentation](https://docs.vapi.ai/advanced/sip). Is there anything specific about the Vapi SIP URI you're trying to set up that I can help with? Sources: - [Vapi Documentation SIP](https://docs.vapi.ai/advanced/sip) - [Vapi Documentation SIP Telnyx](https://docs.vapi.ai/advanced/sip/telnyx)

where can i find sip:username@sip.vapi.ai" username part

Check out the documentation link shared to start using VAPI SIP. It contains all the processes you need to follow, and it works like magic if followed correctly.