Hi I want to record all sessions, except calls to group numbers and to IVR. So I need something like: <!-- eavesdrop --> <extension name="record_3..16_digits" continue="true"> <condition field="${is_already_recording}" expression="^$"/> <condition field="destination_number" expression!="^(400)$"/> <!--NOT EQUAL--><!-- IVR --> <condition field="destination_number" expression!="^(399)$"/> <!--NOT EQUAL--><!-- Group number --> <condition field="destination_number" expression="^(\d{3,16})$"> <action application="set" data="RECORD_TITLE=Recording ${caller_id_name} ${caller_id_number} to ${destination_number} at ${strftime(%Y-%m-%d %H:%M)}"/> <action application="set" data="RECORD_STEREO=true"/> <action application="export" data="ignore_early_media=true"/> <action application="set" data="media_bug_answer_req=true"/> <action application="record_session" data="$${base_dir}/recordings/archive/${strftime(%Y-%m-%d-%H-%M-%S)}_${caller_id_name}_${caller_id_number}_2_${destination_number}.mp3"/> <action application="export" data="is_already_recording=true"/> </condition> </extension> . But the syntax of condition does not allow the operator " not equal" or "!=". What should I do? With best regards, Shumaev DA, KBR Ltd.