Category Tree: reduce number of categories

plugins/asterisk/asterisk

@@ -156,7 +156,7 @@ multigraph asterisk_channels
 graph_title Asterisk active channels
 graph_args --base 1000 -l 0
 graph_vlabel channels
-graph_category asterisk
+graph_category voip
 total.label channels
 END
 
@@ -173,7 +173,7 @@ multigraph asterisk_voicemail
 graph_title Asterisk voicemail messages
 graph_args --base 1000 -l 0
 graph_vlabel messages
-graph_category asterisk
+graph_category voip
 total.label Total messages
 END
 
@@ -182,7 +182,7 @@ print <<END;
 multigraph asterisk_meetme
 graph_title Asterisk meetme statistics
 graph_args --base 1000 -l 0
-graph_category asterisk
+graph_category voip
 users.label Connected users
 conferences.label Active conferences
 END
@@ -193,7 +193,7 @@ multigraph asterisk_codecs
 graphs_title Asterisk channels per codec
 graph_args --base 1000 -l 0
 graph_vlabel channels
-graph_category asterisk
+graph_category voip 
 END
 
   foreach my $codec (@CODECS) {

plugins/asterisk/asterisk_channels

@@ -22,7 +22,7 @@ if [ "$1" = "config" ]; then
         echo "graph_title Asterisk Channels"
         echo "graph_args --base 1000 -l 0"
         echo "graph_vlabel Channels"
-        echo "graph_category asterisk"
+        echo "graph_category voip"
         echo "channels.label Channels"
         exit 0
 fi

plugins/asterisk/asterisk_inuse

@@ -28,7 +28,7 @@ if [ "$1" = "config" ]; then
         echo 'graph_vlabel line use and connected users states'
 	echo 'graph_noscale true'
 	echo 'graph_info will be info'
-        echo 'graph_category asterisk'
+        echo 'graph_category voip'
         echo 'inuse.label inuse'
         echo 'inuse.type GAUGE'
 	echo 'inuse.info sip show inuse'