Best Asterisk veriosn for t.38 pass through

Hi Guys,

Can anyone please suggest me the reliable and fully supported Asterisk verison for t.38 pass through mode implementation …for commercial launch …we are planning to handle upto 100’s of faxes in pass through mode …

thanks in advance


Pass-through, where one T.38 endpoint is connected to another T.38 endpoint for passing-through faxes, has been available since 1.4. At present, 1.4 and the entire 1.6.x series have been moved to Security-Fix Only mode, so they no longer receive bug fixes. 1.8 LTS will receive bug fixes for another 3+ years, so it’s currently the best route forward.