Customers system was hit by power restoration after last weeks CA power shortage.

Only phone with active ringers was Ext.201, which comes out of the P 1 port.
Set plugged in directly at Port 1 indicates NOTHING.

I cross connected Ext. 211 to where 201 was in suite.
But I do not know how to program Ext. 211 to ring on lines 1 - 4.
Any help would be appreciated.
Thank you.

What type of lines do you have? if digital use 714 if anagole use 406

If I remember correctly, digital? lines from C-Beyond. I do not understand " use 714 or use 406"
Can I just program the lines ringing from an instrument , or not?
Remember the Port that powered Ext. 201 seems to have been fried by the power restoration surge weeks ago.
Thank you