NPA/NXX Extended Area Dialing Problem

[unkalary]

Here is a problem I have run into. In the local area (813) there is normal 7 digit dialing (9-781-4747). Across the bay (another county) you have to 10 digit dial(9-727-784-4646) to get there, no 1. In that county you only have to 7 digit dial locally, 10 digit to call back to me. NANPA in their infinite wisdon has assigned an NXX (727)in the 813 area, the same as the NPA to the extended area dialing.
Question, how do you program the Nortel switch to handle both calls at the same time. You dial 9-727-7811 for a local call and 9-727-781-1545 to the other side of the bay in area NPA 727? Both types are legal calls.

I think I found the solution but wanted to see what everyone else thinks.

 

[bigindian65]

You have to go off the NXX , when someone dials 781 put it on an rli with a dmi that deletes nothing, and inserts 727

 

[switchdoctor]

If these are both local routed calls create a seperate entry for each combination under a DMI table (Just don't insert or delete any digits in the DMI table) You are effectively only using the DMI table to steer the call, while maintaining call security by keeping it under the NARS/BARS umbrella. The other thing you could do is to make these numbers route via CDP/DSC by making them a DSC.
If you need an example I can show you...

RSVP to luv dot freedom at bellsouth dot net.

 

[unkalary]

What happens when I want to 7 digit dial a local number 727 7811? Also how do I distiguish between 781 in the 813 or 781 in the 727 area? The local area will not accept its own area code (813) as part of the local number. Cant 10 digit dial in 813.

 

[switchdoctor]

You need to create a DMI entry for 781 under the 727 NPA to allow it to route local; if you have an NXX 781 in load 90, see what table it is routing to. You should make sure it is seen as a local route. You can repeat the process for any other NPA's that require that NXX, be sure that you associate the DMI with the correct entry for the route. ie <entry 0>.

 

[unkalary]

When I dial NPA 727 or NXX 727 I use the same route. Only have one route. If I program in LD90 727 as NPA the it will require at least 10 digits before it will route. I can't 7 digit dial if it is an NPA. If I use an NXX (727) then the last 3 digits of the extended area (727-781-7811) get lost and either way calls do not complete.

 

[johnpoole]

it should route either way, build it as a 10, the 7 will route, just take an extra 3,4 sec for ringback.. the inter-digit timer then the eod both have to expire.. try the 7 digit plus # to test that.. the # cancels the timers.. your right not a good solution there.. how close is your area to full 10 digit dialing.. that is the cure all..

john poole
bellsouth business
columbia,sc

 

[StanleySteamer]

unkalary, aren't you in a 10 digit dialing area?
There is no way your local carrier can send 727-7811 to one destination and then send 727-781-1545 to another destination.

It seems to me that you should be dialing 9+813-XXX-XXXX or 9+727-XXX-XXXX for local numbers.

It's possible that when 10-digit dialing was implemented in your area code 813 that the administrator of the PBX tried to save the need for users to dial 10 digits by using a DMI to insert the 813. But they were only postponing the inevitable.

 

[unkalary]

I guarante Verizon WILL route 727-7811 to a local cell phone provider in Tampa (813) and 727-781-7811 will go across Tampa Bay to Pinellas County (727). This can be done from any home line or business line. In the PBX world using PRI as the sole route, I need to route 727-781-7811 to Pinellas County and 727-7811 to a Tampa cell phone provider. Tampa is in 813 area code. We are not close to 10 digit dialing except when you go between the 813 and 727 area codes. Also if you add a 1 in front of the 727, a netowrk recording stating the 1 is not needed to complete the call.

In the Tampa area (813 without the 1) you cannot dial 10 digit (813-nxx-xxxx) and get the call to go through. You will get a network recording stating the area code is not needed to dial the local number.

My problem was how do I send both numbers across the PRI and get the call to complete.

One thing is for sure, Verizon has done some strange things but this takes the cake. N A N P A had to of assigned the nxx 727 in the 813 area code and Verizon figured out how to route it.

 

[StanleySteamer]

Hmm...
Your example scenarios have changed.
From your original post:

You dial 9-727-7811 for a local call and 9-727-781-1545 to the other side of the bay in area NPA 727? Both types are legal calls.

Here the first 7 digits of your destination number are the same, so if 727-7811 is a valid 7 digit number then the call will only go to that number - it can't go to the 10 digit number.

From your most recent post:

Verizon WILL route 727-7811 to a local cell phone provider in Tampa (813) and 727-781-7811 will go across Tampa Bay to Pinellas County (727).

In this case the first 7 digits are different so conceivably Verizon could be sending 727-7811 to Tampa and 727-781-7XXX to Pinellas. If that's what they are doing then, yes it is strange. That means they have created their own dialing plan inside 813-727 with specific ranges of 727-XXXX numbers that are distinct from valid 727-NXX-XXXX numbers.

What happens if you bypass NARS and dial those numbers directly on the PRI route using the trunk route access code?
If Verizon is the PRI provider then it should act just like calling from the home line.
If what you are describing is correct then you would have to program 727 as an SPN with FLEN 0 and that would solve your problem.
I think the PBX will wait for the inter-digit timer to expire before outpulsing the digits, so there will be an 8 second pause after the caller dials the number before they hear ringback.

 

[unkalary]

If I direct access the trunk bypassing NARS/BARS and dial each number, the calls will complete. Reguardless of whether it is a 7 digit local or 10 extended area call.

I did find a way of fixing it in LD86. I programed 727 as a SPN in LD90 and gave it its own RLI. In LD 86 I programed a DMI table to do nothing except change the CTYP to UNKN(unknown) and the applied that DMI to the RLI I created for 727. It still uses the PRI outgoing and both types of calls complete now in the PBX.

I dont know why Verizon did this but the NXXs and NPAs are controlled by North American Numbering Plan Association (NANPA). They are the ones that assigned the NXX in the 813 area.

 

[johnpoole]

they will be more of that, and your right verizon does not control that.. in most cases, the npa would be 1xxx and the local would be xxx.. your not that far from 10 digit

john poole
bellsouth business
columbia,sc