curl -X GET 'https://api.elevenlabs.io/v1/convai/phone-numbers/phone-number-id/sip-messages?page_size=20&cursor=example-cursor' \
  -H "xi-api-key: $ELEVENLABS_API_KEY"

# GET /v1/convai/phone-numbers/{phone_number_id}/sip-messages (ElevenLabs API)
Base URL: https://api.elevenlabs.io
Auth: xi-api-key: <ELEVENLABS_API_KEY>
Last verified: 2026-09-03

> Get Sip Messages For A Phone Number

## Critical Gotchas
* Authentication uses the non-standard `xi-api-key` header, not `Authorization: Bearer`. Sending a Bearer token returns HTTP 401.
* Text-to-speech responses are raw binary audio, not JSON. Write the body to a file (`--output speech.mp3`) rather than parsing it.

## cURL
curl -X GET 'https://api.elevenlabs.io/v1/convai/phone-numbers/phone-number-id/sip-messages?page_size=20&cursor=example-cursor' \
  -H "xi-api-key: $ELEVENLABS_API_KEY"

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| phone_number_id | path | string | Yes | The phone number ID. This is returned when a phone number... |
| page_size | query | integer | No | query parameter page_size. |
| cursor | query | string | No | Used for fetching next page. Cursor is returned in the re... |

## Response (200 OK)
{"sip_messages":[{}],"next_cursor":"string"}

---
Need an API key? Get one at https://elevenlabs.io/app/sign-up

GET

/v1/convai/phone-numbers/{phone_number_id}/sip-messages

ElevenLabs API

Get Sip Messages For A Phone Number

Base URL: https://api.elevenlabs.io
Auth: xi-api-key: <ELEVENLABS_API_KEY>
Last verified: 2026-09-03 · upstream hash matched

Actions

Agents: curl -H "Accept: text/markdown" this URL
→ 216 tokens · Vary: Accept

Critical gotchas

Authentication uses the non-standard xi-api-key header, not Authorization: Bearer. Sending a Bearer token returns HTTP 401.

Text-to-speech responses are raw binary audio, not JSON. Write the body to a file (--output speech.mp3) rather than parsing it.

cURL

curl -X GET 'https://api.elevenlabs.io/v1/convai/phone-numbers/phone-number-id/sip-messages?page_size=20&cursor=example-cursor' \  -H "xi-api-key: $ELEVENLABS_API_KEY"

Get a free ElevenLabs API key → sponsored

Parameters

Name	In	Type	Required	Description
phone_number_id	path	string	Yes	The phone number ID. This is returned when a phone number is imported.
page_size	query	integer	No	query parameter page_size.
cursor	query	string	No	Used for fetching next page. Cursor is returned in the response.

Response 200 OK

{
  "sip_messages": [
    {
      "call_id": "string",
      "phone_numbers": [
        "string"
      ],
      "local_address": "string",
      "remote_address": "string",
      "transport": "string",
      "raw_message": "string",
      "error_message": "string",
      "direction": "in",
      "created_at_unix_micro": 0
    }
  ],
  "next_cursor": "string",
  "has_more": false
}