KX-T: resetting a station

[Jim Gottlieb]

I have a client with a KX-TD816 (same as KX-TD1232) and one of their  
stations is in a state where when they go off hook on the intercom,  
the display says "Not Valid" and they don't get a dial tone.

I'm guessing that someone accidentally dialed some code (usually they  
forget to dial 9 and end up dialing some feature code) that did this,  
and normally when this happens I tell them to dial 790 for a station  
reset.  But in this case, they can't.

Does anyone know how I can do the equivalent from the extension on the  
first port or through programming?

Thanks...

Jim Gottlieb
San Diego, California