That is exactly what I did, but the extention of the phone near the DSS is 300 not 110 or 111. Those 2 extensions are in classrooms on the other side of the school. And they just have the small analog phone. That is why I asked about changing ext numbers. It made all the beep as descibed in the manual, but no change to the ext.

Shawn
Connect Telecom www.connecttelecom.us
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