ARS / AAR / UDP / Digit Conversion: What order?

[MCOMikey]

I recently inherited a CM8 system in which a boat load of digit conversion and routing were put in place while a migration from CS1K to CM was taking place. Now I am tasked with the cleanup. My question: In what order do I follow the digits?

Here is what I am following now:
Dialed digits > Dial Plan Analysis > ARS or AAR > UDP > ARS or AAR digit conversion > route.

There seems to be some circular logic going on and I want to make sure I am looking at this correctly.

TIA!

-mike

 

[kyle555]

dial plan analysis shouldn't go to ARS or AAR on its own.

dial plan parameters says whether a string is looked at as EXT or UDP first.

So, in dialplan analysis you can have both string 4, length 4, ext and string 4 length 4 udp.
if someone dials 4000, dialplan parameters will decide whether to look for a ext 4000 first or a udp match for 4000 first.
If it's in udp, you can manipulate and send to AAR or ARS or EXT
Once you're in AAR or ARS, you next go to AAR or ARS digit conversion. You can manipulate and remap to EXT from there - like collapsing many PBXs into one and wanting to intercept LA users calling NYC DIDs 9-1-212-xxx-yyyy, if you knew the yyyy was the 4 digit DN, you can use ARS digit conversion to yyyy and send to EXT
Once you pass AAR/ARS digit conversion and you're in the AAR/ARS table, you're going to need to hit a route, there's no way back from there.

 

[bignose21]

I have attached a zip file with 2 pdf and one word doc that I used for reference when trying to get my head around CM routing as I moved over from CS1K