i did a very small test

# cat /etc/dbus-scripts/skype_call
/opt/customs/scripts/test * com.nokia.policy.telephony com.nokia.policy.telephony call_request /org/freedesktop/Telepathy/Connection/spirit/skype/*



# cat /opt/customs/scripts/test
#!/bin/sh
pidof skyhost > /tmp/pidof

# run-standalone.sh /usr/sbin/dbus-scripts --session

tried to make a skype call , so the event call_request would be signaled

now ps shows me:

2089 root 2160 S /bin/sh
2103 root 2084 S /bin/sh /usr/bin/run-standalone.sh /usr/sbin/dbus-scr
2112 root 3324 S /usr/sbin/dbus-scripts --session
2115 root 2084 D /bin/sh /opt/customs/scripts/test :1.19 com.nokia.pol
2116 root 0 Z [pidof] -> ZOMBIE

pstree shows me :
sh───run-standalone.───dbus-scripts───test───pidof

and here dbus-script is locked and not listening or executing anything anymore ...