Supercharge Faxing Mastering the Art of Fax Passthru Reinvention

... FAX Passthru Method is set to NSE. T38 faxes still work fine for me even with the notice. You can change FAX Passthru Method to REINVITE and ... Passthrough or VBD is a transport method for passing modulated data such as fax, modem, and text telephone protocols over an IP network. Because the behavior you're asking for is a proxy behavior, I'll review the code again and see if there is a way, but as far as I recall we don' ... ... method to determine the support of T.38 capabilities (work-in- progress) ... 38 re-INVITE SHOULD initiate the subsequent re-INVITE to fax pass-through mode. Fax relay is enabled on my 2851 with fallback as pass-through g711ulaw. Engineer said my inbound test faxes start as g729 the re-invite to g711. ... faxes (sending was flaky too). After about 3 hours of tinkering Vonage and I discovered that changing the the FAX Passthru Method from ReINVITE ... ... FAX tone is detected on the PSTN side, FS receives a T.38 > > re ... pass-through with special > > codec characteristics - > -silence ... Hi, I send an outbound fax call and after call establishment the remote party sends a T38 re-invite ... Check you have t38-passthru set to true ... To allow sending G711 passthrough faxes, compile SpanDSP plugin. Passthrough is one method to transport fax over IP. Passthrough works like a normal voice call, the fax is encoded via an appropriate codec ...