Stay up to date with the latest changes to Synthflow.
This changelog provides granular, real-time updates as changes are released. For a monthly summary of platform changes, see the Synthflow product changelog on our feedback portal.
For live uptime, active incidents, and service health, visit our Status page.
Use SIP X-Headers in prompts, actions, and transfers
Synthflow now accepts arbitrary X-* SIP headers on inbound calls. Any custom header your SBC, PBX, or carrier attaches to the SIP INVITE is automatically extracted and made available as a variable throughout the call lifecycle — in prompts, custom actions, and outbound transfer headers.
See the full guide: Use SIP X-Headers in Prompts, Actions & Transfers.
