Status updates with real-time webhooks
Use webhooks to notify applications of fax-related events (queued, sent, failed, received) in real-time. Get status updates when a fax is successfully delivered or fails, automatically trigger workflows when a fax is received, and track multi-page transmissions in real time.
Legacy telecom integration
SignalWire bridges modern programmable faxing with legacy telecom infrastructure, making it easy to integrate traditional PSTN-based faxing with cloud-based fax solutions. Migrate from on-premises fax servers, analog fax machines, or SIP-based fax systems.
Flexible numbering and BYOC
Dedicated fax numbers are available, or you can port existing fax numbers to maintain continuity while upgrading to cloud faxing. SignalWire allows you to bring your own carrier (BYOC) to keep your carrier while using the Programmable Fax API and taking advantage of cloud-based storage.