---
title: "Changes to POST /2010-04-01/Accounts/{AccountSid}/Conferences/{ConferenceSid}/Participants.json"
method: POST
path: "/2010-04-01/Accounts/{AccountSid}/Conferences/{ConferenceSid}/Participants.json"
---

# Changes to POST /2010-04-01/Accounts/{AccountSid}/Conferences/{ConferenceSid}/Participants.json

`POST /2010-04-01/Accounts/{AccountSid}/Conferences/{ConferenceSid}/Participants.json`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 6 of 54 revisions.

- **2026-08-11** (v2010) `6b6ffccef14c`: 9 info
- **2026-05-06** (v2010) `a6753266b8b0`: 1 info
- **2026-01-07** (v2010) `7f123267c8dd`: 1 info
- **2025-09-25** (v2010) `a14eeea86591`: 1 info
- **2024-04-18** (v2010) `cf63f47f41aa`: 24 breaking
- **2024-04-01** (v2010) `03efefaf7cfb`: 1 info

## Changes

- **2026-08-11** (v2010) `6b6ffccef14c`: 9 info
  - added the new optional request property `EmergencyAddress`
  - added the new optional request property `EmergencyCallerLocation`
  - added the new optional request property `EmergencyCallerPosition`
  - added the new optional request property `EmergencyCity`
  - added the new optional request property `EmergencyCountry`
  - added the new optional request property `EmergencyName`
  - added the new optional request property `EmergencyState`
  - added the new optional request property `EmergencyZipCode`
  - added the new optional request property `Passports`
- **2026-05-06** (v2010) `a6753266b8b0`: 1 info
  - added the new optional request property `RecordingConfigurationId`
- **2026-01-07** (v2010) `7f123267c8dd`: 1 info
  - added the new optional request property `ClientNotificationUrl`
- **2025-09-25** (v2010) `a14eeea86591`: 1 info
  - added the new optional request property `CallerDisplayName`
- **2024-04-18** (v2010) `cf63f47f41aa`: 24 breaking
  - removed the enum value `DELETE` of the request property `AmdStatusCallbackMethod`
  - removed the enum value `DELETE` of the request property `ConferenceRecordingStatusCallbackMethod`
  - removed the enum value `DELETE` of the request property `ConferenceStatusCallbackMethod`
  - removed the enum value `DELETE` of the request property `RecordingStatusCallbackMethod`
  - removed the enum value `DELETE` of the request property `StatusCallbackMethod`
  - removed the enum value `DELETE` of the request property `WaitMethod`
  - removed the enum value `HEAD` of the request property `AmdStatusCallbackMethod`
  - removed the enum value `HEAD` of the request property `ConferenceRecordingStatusCallbackMethod`
  - removed the enum value `HEAD` of the request property `ConferenceStatusCallbackMethod`
  - removed the enum value `HEAD` of the request property `RecordingStatusCallbackMethod`
  - removed the enum value `HEAD` of the request property `StatusCallbackMethod`
  - removed the enum value `HEAD` of the request property `WaitMethod`
  - removed the enum value `PATCH` of the request property `AmdStatusCallbackMethod`
  - removed the enum value `PATCH` of the request property `ConferenceRecordingStatusCallbackMethod`
  - removed the enum value `PATCH` of the request property `ConferenceStatusCallbackMethod`
  - removed the enum value `PATCH` of the request property `RecordingStatusCallbackMethod`
  - removed the enum value `PATCH` of the request property `StatusCallbackMethod`
  - removed the enum value `PATCH` of the request property `WaitMethod`
  - removed the enum value `PUT` of the request property `AmdStatusCallbackMethod`
  - removed the enum value `PUT` of the request property `ConferenceRecordingStatusCallbackMethod`
  - removed the enum value `PUT` of the request property `ConferenceStatusCallbackMethod`
  - removed the enum value `PUT` of the request property `RecordingStatusCallbackMethod`
  - removed the enum value `PUT` of the request property `StatusCallbackMethod`
  - removed the enum value `PUT` of the request property `WaitMethod`
- **2024-04-01** (v2010) `03efefaf7cfb`: 1 info
  - added the optional property `queue_time` to the response with the `201` status

---

[Operation](https://skmtc.dev/twilio/apis/api-v2010/docs/2010-04-01/Accounts/:AccountSid/Conferences/:ConferenceSid/Participants.json/post.md) - [API](https://skmtc.dev/twilio/apis/api-v2010.md) - [Page](https://skmtc.dev/twilio/apis/api-v2010/changes/2010-04-01/Accounts/:AccountSid/Conferences/:ConferenceSid/Participants.json/post)