resources/live/subresources/sessions/methods/refer/index.md 2026-09-10 18:01 UTC to 2026-09-11 20:00 UTC

Transfer call

post /live/sessions/{session_id}/refer

Transfer a SIP call to another destination. Supply a nonblank target_uri for the SIP Refer-To header.

Path Parameters

• session_id: string

Body Parameters

• target_uri: string

  Nonblank URI for the SIP Refer-To header, such as tel:+14155550123 or sip:agent@example.com.

Example

curl https://api.openai.com/v1/live/sessions/$SESSION_ID/refer \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $OPENAI_API_KEY" \
    -d '{
          "target_uri": "tel:+14155550123"
        }'