Maximize Faxing Efficiency Unleashing the Potential of the Fax Passthru Method

... fax passthrough using an audio codec is attempted. The Call Agent ... fax transmission method being used. Implementations of this package MUST at ... Log into your Cisco ATA WebGUI and navigate to the Voice Line 1 option. Under the NAT and Network Settings set the following options. FAX Codec Symmetric: YES FAX Passthru Method: Re-INVITE FAX Process NSE: YES FAX Disable ECAN: YES (Enables Echo Cancel if FAX call is ... 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 ... ... 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 tell at what ... ... fax is still working, but outbound faxing still is not possible. I put up a flow-chart (by wireshark) and a dump of the relevant re-invite ... To allow sending G711 passthrough faxes, compile SpanDSP plugin. ... reinvite when a fax tone is detected. If using t38_gateway peer then ... 38 pass-through here. So FS has only to act as a proxy for the ... Passthrough is the method of using G.711 and RTP to transmit fax whereas Relay is the method of using T.38. Pass-through is the standards ... 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' ...