BARS (NPAs & NXXs)

[coniglio]

i traced one of my trunk TNs and saw the following call:
DIAL DN 97864251045
MAIN_PM ESTD

The call originates from NPA 305 (Fl.). The DIAL DN area code is 786 (overlay of 305). You don't need to dial "1" first to dial 786 from 305(checked on nanpa.com). I then looked up NPA 1786 and NXX 786. My question is, which item is BARS looking at when making this call? It can't be looking at the NPA 1786 because they aren't dialing 1 first, right?

 

[StoneColdphoneman]

Go to ld 90
Do prt
Net
Ac1
Npa
Then type
786 space 425

 

[coniglio]

this is what i got.
NPA 786 425

ESN073

 

[coniglio]

i just ran EVERY NPA in the switch. this is all there is for 768

NPA 1786
RLI 2
SDRR NONE
ITEI NONE

no NPA 786 is defined. I printed everything in NPA (same in SPNs by the way. Nothing).

 

[Nortellian]

did you do exactly as stonecold said so. You have to do a print than 786 (space) 425. Just doing a prnt and hitting return will not show you if 786 425 is built. I don't know why but you have to specifically put in 786 425.

 

[coniglio]

yes. I cut and pasted it. that was straight out of the PBX. My guess is that since 786 is defined as an NXX the switch routed it that way, even though 786 is actually the dialed area code. In area code 305 (where call originated)you CANNOT use 7-digit dialing anymore, so even though 786 (WITHOUT THE 1) is defined as an NXX, that must be where the switch looks first when sending that call out. I should probably even out NXX 786 and reprogram 786 as an NPA. Then I will have NPA 1786 and NPA 786. how does that sound?

 

[Nortellian]

good.

 

[DDionne]

TC,

1) Print out the nxx for 305 and compare it with nxx for 786. Do they both use the same RLI? You may have to print the RLI's if they use different RLI tables. Then print the DMI tables associated to the 2 RLI's (if appl).

2) You mentioned in your original post the trace is from a trunk TN, could you place a call to the 786 area code from a set and trace that set? Then compare the DIAL DN info.

I am also curious, if you traced a trk TN, why is it dialing 9 for an outside line? Isn't it already an outside line? Or do you have centrex lines, thus requiring a 9 to leave the centrex world?

DD

 

[DDionne]

Add'l, the 2 RLI's should be similar except for dialing different area codes.

 

[coniglio]

ddionne, if i have a T1 with a backup route of copper, then my callers will be dialing 9 to get out. If the T1 is busy the call goes over the copper, since it's programmed as a backup route. So they have no way of knowing whether or not they are going over the T1 or the backup so of course they're always going to dial 9, right?

 

[DDionne]

Agreed, the 9 is the ESN AC1 or AC2. My point or question refers to whether the 9 should appear in the dial string of the trunk TN or only the set TN. Sets dial 9 to access the ESN translation tables but does the trunk need to dial 9 also? Normally the 9 does not appear in the trunk dial string unless the DMI table re-inserts it.

To get back to your original question, have you tried to remove 786 from nxx and add it to npa as Nortellian and you have previously suggested? I'd be curious to know the results. I would think the calls would be processed the same but now I'm not too sure anymore.


DD