Inside the NANP for CM6

Answered Question
Nov 3rd, 2008
User Badges:

Hi all,


I'm trying to get a better understanding of the NANP and how call manager compiles all of it's route patterns into the macro.


From what (limited) documentation I can find, I found that a basic USA dial-plan deployment contains the following route-patterns:


- "local": 9.[2-9][02-9]XXXXX

- "Extended local": 9.[2-9]XX[2-9]XXXXXX


So the next step was to find some random USA numbers, and I found some interesting things:


The local number 7900122 will not hit the "extended local" pattern because the second 0 does not match the pattern - so the call will go straight out.


I found at least another 3 patterns however, that match both patterns, and thus I would presume that the CUCM has to wait for it's T302 timer to expire before it matches the local pattern and routes the call.


I spoke to a friend in the USA and he is using the NANP/Route filters/9.@ and when he dials 7 digit numbers that theoretically match both patterns, it routes out without waiting for the T302 timer to expire.


Anyone care to shed any light on how I could make route patterns more specific, IE mimicking the NANP built in to CM without using it?


Thanks!


Mike.

Correct Answer by davidjani about 8 years 4 months ago

from memory, try:


C:\Program Files\Cisco\DialPlan\NANP


(Open With -> Wordpad)


Regards,


Jani.

Correct Answer by Jaime Valencia about 8 years 4 months ago

i can't recall the exact path and i don't have a server right now to tell you where it is, but you can use the search option from windows explorer and look for filename *NANP*.*


it has aprox 166 patterns


sorry i cannot give you the exact path where the file is =(


HTH


java


if this helps, please rate

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (2 ratings)
Loading.
Jaime Valencia Mon, 11/03/2008 - 09:11
User Badges:
  • Cisco Employee,
  • Hall of Fame,

    2011

if you can get your hands on a windows based CCM you can see the whole NANP file because i can tell you that it has way more than that


you're right on the fact that it can be subject to IDT but it's designed to avoid that.


the only way to avoid IDT is to create more exact patterns, meaning uses as many exact matches as possible


HTH


java


if this helps, please rate

Correct Answer
Jaime Valencia Mon, 11/03/2008 - 14:29
User Badges:
  • Cisco Employee,
  • Hall of Fame,

    2011

i can't recall the exact path and i don't have a server right now to tell you where it is, but you can use the search option from windows explorer and look for filename *NANP*.*


it has aprox 166 patterns


sorry i cannot give you the exact path where the file is =(


HTH


java


if this helps, please rate

Correct Answer
davidjani Tue, 11/04/2008 - 04:32
User Badges:

from memory, try:


C:\Program Files\Cisco\DialPlan\NANP


(Open With -> Wordpad)


Regards,


Jani.

Actions

This Discussion