Little corrections to uplink/downlink filter
diff --git a/grc/grgsm_uplink_downlink_filter.xml b/grc/grgsm_uplink_downlink_filter.xml
index d868752..65d852d 100644
--- a/grc/grgsm_uplink_downlink_filter.xml
+++ b/grc/grgsm_uplink_downlink_filter.xml
@@ -4,7 +4,7 @@
<key>grgsm_uplink_downlink_filter</key>
<category>GSM</category>
<import>import grgsm</import>
- <make>grgsm.uplink_downlink_filter($direction)</make>
+ <make>grgsm.uplink_downlink_filter()</make>
<sink>
<name>in</name>
<type>message</type>