Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jun 18, 2026 - 13:00 UTC
Update
Please note the scheduled maintenance to implement 603+ has been postponed to Thursday, June 18th.
Posted Jun 16, 2026 - 02:05 UTC
Scheduled
Sinch Elastic SIP Trunking will be deploying an emergency software update to add additional features and functionality. The purpose of this update is to add support of "603+" which a newer SIP response code used in U.S. voice networks to signal that a call was blocked by the network, usually because it was identified as likely illegal, fraudulent, or unwanted traffic.
The scheduled work is not expected to impact services. This is being sent as a courtesy notice in the event that you experience issues with your service during the maintenance window.
For information about our product enhancements, we encourage you subscribe to our Elastic SIP Trunking Release Notes posted in the Sinch Community at: https://community.sinch.com/
Posted Jun 11, 2026 - 04:55 UTC
This scheduled maintenance affected: Elastic SIP Trunking (Outbound Calling).