The answer is NO. Here's why:
The Power Macintosh needs to be ON to be able to answer the phone using a GeoPort¬ Telecom Adapter and Express Modem Software. The CPU Engergy Saver software shuts down your system at a time you specify. With your Macintosh shut down your GeoPort¬ Telecom Adapter cannot be utilized.
The CPU Engergy Saver software does have a feature called "Do not shut down if a serial port is being used". If either port is active (i.e. Geoport waiting for a phone call), the system will not shut down. You can disable this feature by unchecking this option.
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