Revamp Faxing Passthru Method vs. Reinvited Reinvention

changing codecs should not require a re-invite, as you can switch between the negotiated codecs at the RTP level, so if that was the intention, ... Fax Pass-Through Global Configuration: ! ... Fax Relay: Relay is the other main method for transporting fax over IP, and its implementation is a ... * move to audio-pass through fax on asterisk. No T.38. If that works. * add in T.38. You will learn things in that process and be able to ... E.g. both devices which send fax and receive fax should support T38. Terminating or originating T38 from/to Asterisk is not supported. e.g. such ... Protocol-based pass-through uses specific messages within the H.323 or SIP call control protocols to switch a voice call to a G.711 passthrough call. FAX Passthru Codec: G711u (USA) or G711a (rest of the world) FAX Passthru method: ReINVITE. FAX Enable T38: yes. FAX T38 ECM Enable: yes. Fax ... ... and fax machine. The whole point (as I specified in the header and initial message) is the attempt to use "Fax for Asterisk" to send the ... 38 passthrough on the server and with the carrier to no avail. ... And does the vrtual fax device use SIP by default or PJSIP? PitzKey ... When implementing the transport method besides the fax settings such as fax ... or response might pass through many intermediate routers and ... 38 with redundancy. Passthrough - Delay<1000ms, Jitter<30ms, Packet loss should be NONE. Protocol Based switchover - This is standard based.