Ive been through a majority of the archived posts and did see one stating that the 1A2 interrupter has a hard wired ring cadence when used with common audible (CA). I have an installed and working WECO 551C with CA working with a 118 freq generator. Looking to mod the install to do 2 short rings on CO line incoming calls, either on some lines or all lines would be fine.

I know that old style Bell System exchanges (1960-1970s) had some switches that did 2 short rings to subscribers. I am wondering if there is either a practice or off-label mod to emululate this behaviour on 1A2.

Thanks in advance for reading my post.
-Alan