SBook5 - sleep disables modem dialling

When I wake it up again, the modem won't dial unless I quit SBook and restart it.
d49ot wrote on :
 I use SBook5 as a phone dialler and it works great until I put the 

computer to sleep. When I wake it up again, the modem won't dial unless I quit SBook and restart it. I've tried adjusting the modem settings in the SBook prefs but nothing makes any difference. Any suggestions on how to fix this would be greatly appreciated.