Hi i want to send fax by loopback to my self ... here is my configurations of fax in dialplan : <extension name="fax_detect"> <condition field="destination_number" expression="^2010$"> <action application="answer" /> <action application="set" data="transfer_ringback=${us-ring}"/> <action application="spandsp_start_fax_detect" data="transfer '9978 XML default' 6"/> <action application="bridge" data="user/$1@${domain_name}"/> </condition> </extension> <extension name="fax_receive"> <condition field="destination_number" expression="^9978$"> <action application="answer" /> <action application="playback" data="silence_stream://2000"/> <action application="set" data="fax_enable_t38_request=true"/> <action application="set" data="fax_enable_t38=true"/> <action application="rxfax" data="$${base_dir}/faxes/${uuid}.tif"/> <action application="hangup"/> </condition> </extension> <extension name="fax_transmit"> <condition field="destination_number" expression="^9179$"> <action application="txfax" data="$${base_dir}/txfax.tif"/> <action application="hangup"/> </condition> </extension> after configuring these i want to send a fax file by loopback in fs_cli i run this command: originate loopback/9978 (/tmp/test.tif) but i just get this error: cannot send non-existant fax file . but my fax file is there already. is my loopback sending correct ? am i right that every fax files which received will be saved in this directory ( $${base_dir}/faxes/${uuid}.tif)?