Frequently Asked Question

Stratelegy supports faxing with a SIP ATA on a best-effort basis only!

Fax machines rely on the analog representation of a digital signal (what you hear as a "fax tone"), and therefore, they are susceptible to deviations in the fax data transmission. In practice, this means that faxes are often interrupted by jitter and latency in the last mile (the portion of the call path between the switch and the end user's fax machine). This level of unreliability causes most VoIP service providers to avoid deploying faxes using SIP ATAs.

We strongly recommend that customers deploy faxing using the Stratelegy Instant Fax ATA.

Note: It is not possible in our system to have both services of calls and faxes to a single DID.

Use of the Instant Fax ATA requires you to purchase a specialized fax ATA from Stratelegy. To place an order, please contact Stratelegy Sales.

Comparison of Fax Methods