PRI vs E&M w Start

what do you all think abouit?

Echo, Feature, Asterisk Integration, etc.

we usualy setup with E&M casue the telephon company use as default, but i would like to heard exprience.

Pro, Cons.

Thank or any help.

Board TE110P

I prefer PRI as you have actual messages to look at when you need to troubleshoot and can pinpoint issues easier. Also you don’t have to deal with weird wink times between switches.