if ($fax_send_mode != 'queue') {
				$dial_string .= $fax_variables;
				$dial_string .= "mailto_address='"     . $mailto_address   . "',";
				$dial_string .= "mailfrom_address='"   . $mailfrom_address . "',";
				$dial_string .= "fax_uri=" . $fax_uri  . ",";
				$dial_string .= "fax_retry_attempts=1" . ",";
				$dial_string .= "fax_retry_limit=20"   . ",";
				$dial_string .= "fax_retry_sleep=180"  . ",";
				$dial_string .= "fax_verbose=true"     . ",";
				$dial_string .= "fax_use_ecm=off"      . ",";
				$dial_string .= "api_hangup_hook='lua fax_retry.lua'";
				$dial_string  = "{" . $dial_string . "}" . $fax_uri." &txfax('".$fax_file."')";