Transforming Fax Passthru None vs. Reinvite Revolution

... passthrough", the unit will reINVITE to setup the call as G.711. The far ... If none of the above tips and best practices solves the faxing issues, you ... I am looking for some information on setting up Asterisk 1.6 for T.38 Fax relay, or the best way to pass through fax transmissions. ... way to keep Fax service Working and how to test? we receive Faxex ... fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none. The caller (or callee) issues a ReINVITE indicating it wants to change the call to FAX. The caller (or callee) embeds FAX tones in the RTP stream. For both ... 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 ... This option is the time we wait after we got the CED, to get V21 flags. This is to avoid to send a SIP re-invite in passthrough and few ms after ... To use the DTMF process info feature, select yes. Otherwise, select no. Default setting: yes. Select the fax passthrough method: None, NSE, or. ReINVITE. Once I changed the Fax Passthrough Method parameter to Reinvite under Line 1 settings in the WebUI of the SPA112 I was able to send. Also T ... 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 ... Fax in Voip Env….. Joy and pain…. In this post I'll show how to configure Asterisk 13/FreePbx 12 to use T.38 Fax capabilities to receive fax ...