MICS and PRI Programming 2

[ryezak]

Hi, I am a nubie with PRIs and the MICS.
I have a customer with 25 -
2 way ground start trunks and possibly a couple loop start trunks as well.
Can you mix a pri with loop start trunks say if I have 26 lines needed? Like 23 b and 1 d. And then 3 LS/DS Analog Trunks as opposed to 2 pris?

2nd question: When my telco service provider delivers the PRI how do I find the specific phone number (real number) to dial.
Example: The first 6 channels on the pri are a certain number then the next 6 are a different business number.
How do know how to connect which set gets which number?

3rdly: I am running 7.1 will that work with PRIs? Does the AA and CCR Tree answer PRIS the same as LS/DS Trunks?

4th: What equipment do I need to facilitate a PRI? and does anyone have a cheet sheet on setting up the programming?
Sorry I am good with LS/DS trunks and DIDs etc. Not the Field side of the PRI on Nortel Gear.
thanks all.

 

[curlycord]

1. yes
2. You want to look for Target Lines and enter the recieved digits then assign those taget lines to what ever sets you want.
3. yes
4. DTI card and 6 port expansion Combo cart or a cloking card.
Look in the FAQs tab and/or use the Search Tab for help.

 

[curlycord]

I forgot to mention, I think you for #4 you do not need the Combo or Services card unless you are expanding system, if you do you also need XC software but others will verify my answers in case I am wrong on some.

 

[hawks]

#4 you do need a clock card you have 2 choices like curly had mentioned (services card or combo card)

DTI Card

PRI Enabler Code

 

[Deweyhumbolt]

#2- There is no set tel# per channel. You are sent DNIS (received digits, usually 4) and assign those as curly stated. All calls come in on any of the 23 B-channels, usually from 1 thru 23. The D-channel (24) has your signaling, OLI, and CLID.

Adversity is Opportunity

 

[RikRodgers]

In Michigan, most CO's are sending 10 digits default. Check with your provider to make sure the number of digits match.

Then program your Target Lines (156 and up) the same way you program standard loop start lines. Make sure you keep good records. There's no easy way to retreive a list of your DID's, other than going line by line in programming.

 

[ryezak]

Another related question is building line pools with a pri is it possible or how to you do this? routes?

This customer has 3 different real numbers. And here our telco offers overlines which is multiple trunks with the same real number assigned to each one.
How to replicate this with a pri? I want 3 separate line pools but all lines will be on this pri. Is this possible.

As well, to connect to a POS machine do I need an ata and just assign the target line to that extension? WIll that work?
tks all.

 

[DBrewsky]

OK..

The PRI will be one dialing group in itself and cannot be segmented to access certain "LINES" to be accessed based upon a dialing plan. This can be done via E&M, Loop or Ground, but not PRI.

A POS (Point of Sale) will require an ATA. Since most POS only dial out to connect for credit card authorizations, then a DID or target line will not be required. If however, the POS supports a DTE BRI connection, the MICS can support it via a BRI-ST/BRI-U card installed in a MICS trunk module (yes, the MICS can be a BRI provider for BRI supported devices). By using a BRI to access the PRI, authorizations become almost instant.


--DB

 

[ryezak]

The POS does not support the BRI. But the ATA off an extension line will work? What digit will it use to get one of the pri channels or lines to dial out?
Do I need a route and destination code to get an outside call?

 

[DBrewsky]

Anytime a PRI is used then routing must be configured. So basically whatever you setup for a destination code for outbound dialing will work on the ATA...


--DB

 

[curlycord]

Here is you FAQ's

http://www.tek-tips.com/faqs.cfm?fid=1646

 

[cook1082]

You asked if you can mix trunks is that on a PRI or seperate lines/analog?and PRI.
If it is on a PRI NO. PRI 23 channels in and out.1 Pool.
You can have other lines in the systen another PRI or Analog /E&M copper.
Also the Norstar does not support Ground Start analog Lines they need to be Loop Start.
And if you need to send CLID of a number put it in the OLI of each set. Make sure that the Telco turns it on to allow it.

 

[ryezak]

This is all great info thanks again guys.
What about back up options? Do these pri's go down much? this is a medical firm and they need reliability.
Maybe backup D channel I see on the order sheet from the Telco. Does Nortel Support this second d channel?
thanks.

 

[curlycord]

All depends on the Telco and quality of pairs, yes best to get backup trunks (POTS).

 

[SYQUEST]

Depending on your service provider, different options may be available if the PRI goes down. Typically analogue lines are used for backup, unless another PRI is required. As far as the DID numbers and quantity of digits sent, you should have a copy of the service order and this info should be on it. You should have a copy of the order if you placed it. If not, get in touch with the person that did, or contact the service provider for a copy.

This type of info is not something you should have to guess at, and decisions about items ordered should include input from the person programming or setting up the system. These are things that most clients have NO clue about and should not be ordering by themselves!

Lastly, some providers allow you to have multiple B channel trunk groups if you want to segregate traffic.

....JIM....

 

[ryezak]

PRI has not been ordered. Still at the drawing board stage thus the reason why I am inquiring on this site.

The person programming is me. I have been in the telecommunications industry as a CO/FSR tech for 14 years mostly with Service Providers. Background is true SONET and IP.
Now am I allowed to ask some simple questions there "JIM"?

I am just trying to simply inquire about how reliable the PRIs are from an Interconnector prospective. I used to test them and turn them up all the time with PBX techs. But what are they like in say a 12 month time period. How many outages? Protection switching options or like you say segregate the Bs across 2 spans in parallel.
I got a Quote from our Main ILEC and it is vague. So I will pursue these questions with them.

 

[RikRodgers]

Most of my customers with PRI's find them pretty reliable. They may experience one outage a year, usually blamed on road work, or an idiot on a pole shorting out a pair. Most providers are good about getting them back up within a business day.

There have been some nightmares, though. I still recommend customers maintain at least one analog line- usually a fax machine, so they can dial out if the PRI fails.

 

[curlycord]

Out of tons of customers we get maybe a couple calls a month that the PRI is down.
Realy depends on location and quality of pairs too.

 

[joelunchpail]

one other thing to mention about pri's
because they are like virtual trunks. (each trunk can be used for any incoming or outgoing number ) you don't require as many as you would if they were analog. so if you are replacing 28 or 30 analog trunks you would probably only require 23 or fewer trunks on your PRI