Skip to main content
DELETE
/
api
/
v1
/
Account
/
{auth_id}
/
numbers
/
{number}
/
application
Detach Number from Application
curl --request DELETE \
  --url https://api.vobiz.ai/api/v1/Account/{auth_id}/numbers/{number}/application
Remove the link between a phone number and a voice application. After detaching, incoming calls to that number will no longer route through the application - the number remains in your account inventory and can be attached to a different application.
This operation lives under the numbers path (lowercase): DELETE /api/v1/Account/{auth_id}/numbers/{number}/application. Detach every number bound to an application before you delete the application, otherwise the delete returns a 409.
Authentication required:
  • X-Auth-ID - Your account Auth ID
  • X-Auth-Token - Your account Auth Token

​
Path parameters

FieldTypeRequiredDescription
auth_idstringYesYour account Auth ID
numberstringYesThe E.164-formatted phone number to detach, URL-encoded (+ → %2B). Example: %2B1234567890

​
Example request

cURL
curl -X DELETE "https://api.vobiz.ai/api/v1/Account/{auth_id}/numbers/%2B1234567890/application" \
  -H "X-Auth-ID: YOUR_AUTH_ID" \
  -H "X-Auth-Token: YOUR_AUTH_TOKEN"

​
Response

Success Response (200 OK)
{
  "message": "Number detached from application",
  "number": "+919876543210",
  "application": {
    "answer_method": "POST",
    "answer_url": "https://example.com/answer",
    "api_id": "aabbccdd-1234-5678-90ab-cdef12345678",
    "app_id": "12345678901234567",
    "app_name": "Acme Voice Application",
    "application_type": "XML",
    "created_at": "2026-04-02 12:11:19.740666+00:00",
    "default_app": false,
    "default_endpoint_app": false,
    "enabled": true,
    "fallback_answer_url": null,
    "fallback_method": "POST",
    "hangup_method": "POST",
    "hangup_url": "https://example.com/answer",
    "log_incoming_message": true,
    "message_method": "POST",
    "message_url": null,
    "public_uri": false,
    "resource_uri": "/v1/Account/MA_XXXXXXXX/Application/12345678901234567/",
    "sip_transfer_method": "POST",
    "sip_transfer_url": null,
    "sip_uri": "sip:12345678901234567@app.vobiz.ai",
    "sub_account": null,
    "updated_at": "2026-04-02 12:11:19.740666+00:00"
  }
}

​
Edge cases

  • Detaching a number with no application is effectively a no-op - there is nothing to unlink.
  • Number not in your account returns a 404. URL-encode the number (+ → %2B).
  • Detaching does not release the number from your account; it only clears the routing binding. To stop incoming calls entirely, also release the number from inventory.