Twilio's Conference list API will return only in-progress calls from 30 September

Twilio's Conference list API will return only in-progress calls from 30 September

23 September 2026: Twilio is changing what its Voice API returns when an application lists conference calls. From 30 September 2026, a request to list conferences returns only conferences that are in progress, unless the request says otherwise. Until then the same request returns conferences of every status, including finished ones.

What changes

The change affects GET /2010-04-01/Accounts/{AccountSid}/Conferences.json. An application that needs completed conferences, for reporting or reconciliation, must add Status=completed to the request. Requests that already pass a status are unaffected.

Twilio's changelog lists the entry under 23 September 2026. The address of the entry, however, ends in "july-2026", which suggests the change was first announced in July and the September post is a reminder or an update. Either way, the effective date given is 30 September.

Who is affected

Any business with call-centre reporting, billing reconciliation or CRM call logging built on Twilio conference calls. Often the code was written by an agency or a software vendor rather than the business itself, which is how a change like this goes unnoticed until a report comes back empty.

What to do

• Ask whoever built your Twilio Voice integration, whether an in-house team, an agency or a vendor, whether it lists conferences without a status filter.
• Where it does, add an explicit Status value to the request before 30 September.
• After 30 September, check that daily or weekly call reports still show completed conferences.
• If you buy a product built on Twilio, such as a contact-centre or sales-dialling tool, ask the vendor to confirm it has checked this change.

Not yet independently verified. This rests entirely on Twilio’s own changelog, and the entry’s address suggests an earlier first notice that we have not been able to read. No independent report of it was found, so every date here comes from the vendor's own page and is only as reliable as that page. We will update this when it can be confirmed, and remove this note.

Sources

• Twilio changelog: Conference list endpoint will default to in-progress conferences only on September 30, 2026 (dated 23 September 2026 in the changelog listing) - 23 September 2026
• Twilio changelog index (read 25 September 2026) - 25 September 2026