AutoDisconnect Modem if Idle malfunctioning

Hello. My ISP is "punishing" me for "camping" on an internet line, that is for taking up time on the internet without actually doing anything. This isn't my intention, as I have in my Device Manager / System Properties / Modem (56HP92-PCT, which is PCTel, 002) and then Connection Tab a check next to "Disconnect a call if idle more than" whatever. I put in 15 minutes.

However, my ISP claims that I'm on much longer than that with my computer being idle. I would have to agree with them, as sometimes if I forget to log off before going to bed, upon waking I'll still find my computer connected to the ISP. In some way, this disconnect if idle more that 15 minute thing isn't being accomplished.

Other than me trying to be more disciplined to just disconnect from the internet before evening, can anybody help me with any advice on this? Could it be some update in modem driver which could help? Is there another "canned" program (or even a simple DOS program) which could autodisconnect a modem after some set period of time being idle?

Thanks.

 

Hello? All the brains out there can't help me?