New PRI Install, certain calls not going through 3

[DigitalMind]

Recently changed a 0X32 with multiple lines to a PRI over the holidays. Almost everyday at one time or another for a certain period, outbound calls won't go through. They dial the number, and as they dial the last digit the phone cuts. (Hangs up, returns to time and date) Originally when the install was done I checked the norstar settings with the telco (protocol). After this problem the telco has "checked" the circuit remotely and says that everything is ok. My guess would have been that one of the channels is buggy or something, telco's guess is that the system is denying the call once they dial the last digit. I don't see why a certain number would go through, and later on that same number the system not letting the call go through.
am I forgetting to check something ??

What happens in a norstar when all channels of the pri are in use and someone tries to make a call ?? Does it say the "no available lines" message ?

As always, Thanks for any and all input.

 

[acewarlock]

Yes "no available lines"

Have you checked that all channels are enabled?

 

[DigitalMind]

Not on site now, and haven't dont many PRI installs, so I will check when I get there tomorrow, but if I didn't have them all enabled, wouldn't it then give the users that no available lines message before it disconnected the call. ? (Or the dialing of the call)

 

[lugerlover]

what release is it..was it upgraded to 6.1 rel 10

also had problems on systems upgraded and corruption...needed to do a startup and start from scratch

see this for known issues..

http://www.tek-tips.com/viewthread.cfm?qid=1320423&page=1

 

[cook1082]

It dosent add up - no more channels would give you no avaliable lines and a restriction service would give you restricted call .Check dialing plan and the number that is dialing.

 

[DigitalMind]

I have checked the dialing plan. The reason i don't think it has anything to do with that is because of the fact that that SAME number that wouldn't go through at one time, WILL go through at another.

I will check the release once i get on site in about an hour or so. Will check this forum once I arrive in case there's any new input.

 

[bwtc]

Do you have a phone that has all of the channel appearances on it, such as a receptionist's phone?

Try taking a number in question, and placing the call on each of the channels.

Also, are the numbers in question from the same geographic area(s)?

 

[DigitalMind]

I didn't even know you could see each channel one by one with a PRI. How do I do that, just give (lets say reception phone) access to lines 1-23 ??? (M7324 with a CAP) If that is possible, it seems like a great idea and i would do a test # on each channel one by one.

Can someone confirm this can be done ?

.. And they seemed to have noticed the trouble only on local numbers, but this may be just a coincidence.

Since the PRI has been installed, we've done an "emergency call" there every other day (about a week since it's been installed) to go see the "lines down" but by the time we get there (an hour or so) it's resolved itself. (And obviously the customer doesn't call back to say "it's ok, it's all working now" ... grrr. ..

thanks guys ...

 

[DigitalMind]

This thread seems to describe the same type of problem as me. The solution seemed to be to make sure the d channel isn't mixed in with the B Channel. Can this happen on a Norstar ? (this thread is not from a Norstar System)

thread689-1043475

 

[lugerlover]

Again what release...since 4.0 and PRI the software has been real buggy and that is on eof the issues...seems to be ok with last release of 6.1 on up...Plis there have been times where corruption on a 3.0 to4.1to 6.1to7.0 we experienced issues where could not dialout and the 3 spans were pretty much idle..this sort of issue happened on both regular and PRI spans

 

[DigitalMind]

Lugerlover,
Thanks for the help. Office tells me they have 6.0 software, no idea what release. Software wasn't changed or upgraded when we switched from copper lines to PRI. (ALWAYS had 6.0)

is 6.0 buggy with PRI's ?

 

[bwtc]

6.0 is buggy with PRI's.

You need to be on 6.1MR3 or higher. The SPID should end in G10.

As mentioned in many threads, don't even try to diagnose PRI problems with software revisions under 6.1MR3.

 

[DigitalMind]

Ok, then I guess the first thing to do is upgrade. Thanks for the input bwtc and Lugerlover. If there's anymore, i'm always here to listen.

 

[cook1082]

One thing you can not put pri channels on a phone.You can with a T1.

 

[DigitalMind]

Thanks cook whats what I thought.

 

[HarrisD1200]

If the problem still persists after the upgrade, let us know what manufacturer and type Central Office switch you are connecting to, as well as Variant type.

 

[jeter]

Check out this thread for programming.
faq799-1646

“Reserve your right to think, for even to think wrongly is better than not to think at all”

CCNA,CCNP,Network+
Tek-TIP Member 19,650

 

[DigitalMind]

Thanks Jeter, I had actually copied and pasted that faq to my laptop before doing that job ...

Thanks ..

 

[DigitalMind]

Hi all, just to follow up, a few days later when going to the customer to find out if the upgrade costs where approved, the telco called back shortly before my arrival and said they changed some settings on their end. Ever since then, no problems, and still with 6.0 ...

I don't think i've EVER installed a PRI without needing the telco tech's to tweek their settings. (And having to go through the whole it's the systems fault, no it's the telco's fault...)

They're so bad ...

Thanks again for the info and help guys ..