Hi all, I've been trying to use the spandsp_start_fax_detect application (with txfax as the callback) from the originate command but I keep getting a hangup before it completes. So far I've tried calling the app directly: originate {ignore_early_media='true'}sofia/gateway/mygateway/18005551234 &spandsp_start_fax_detect('txfax /tmp/myfax.tif 3 ced') Inline dialplan: originate {ignore_early_media='true'}sofia/gateway/mygateway/18005551234 'spandsp_start_fax_detect:txfax /tmp/myfax.tif 3 ced' inline ..plus some other permutations but all end with the same result: [NOTICE] mod_spandsp.c:107 Enabling fax detection 'txfax' '/tmp/myfax.tif' [DEBUG] switch_core_media_bug.c:456 Attaching BUG to sofia/external/18005551234 [NOTICE] switch_core_state_machine.c:226 sofia/external/18005551234 has executed the last dialplan instruction, hanging up. Am I misunderstanding how spandsp_start_fax_detect works? Adam Johnston