Resume a call

Resumes a call previously placed on hold, restoring two-way audio and returning the call to an active state. Use this endpoint to continue conversations after a hold. For example, following a transfer, a consultation, or multitasking.

Provider Support

Most providers that support hold also support resume. Note: 3CX does not support resume operations and will return an HTTP 404 when invoked.

Behavior

When resumed, the call exits the "hold" state and becomes active again. Hold music (if any) stops, and participants can communicate normally. Call timers and billing continue uninterrupted from the original start time.

Requirements and Errors

Requires:

• A valid call_id referencing a call currently in "hold" state
• A provider that supports resume functionality

Errors may occur if:

• The provider (e.g., 3CX) does not support resume
• The call is not in a "hold" state
• The call connection was lost during the hold period
• The call_id is invalid or not found
• Permissions are insufficient to control the call

Tip: Use the Hold Call endpoint to place a call on hold, and the List Active Calls endpoint to confirm a call's current state before resuming.

curl --request PUT \
  --url http://api.voistrix.com/v1/accounts/:accountID/applications/:applicationID/providers/:providerID/calls/:callID/resume \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN'