[cisco-voip] PRI 's Roll

[Fuermann, Jason]

ATT is bottom up for us. If your sales person is not lying to you I would assume that the power outage affected all the PRI's and that's why the calls didn't roll/hunt. More importantly you need to try and get this error message yourself while monitoring the trunks (maybe you can narrow it down to a channel). Additionally, we found if you "busy out" (actually put into out of service) channels as Jason suggested, when ATT tries to send a call to you they will provide a busy tone to the caller and not try another channel.

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of tmdvoip
Sent: Tuesday, January 05, 2010 2:25 PM
To: 'Jason Shearer'; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] PRI 's Roll

Jason
I believe we are bottom up...
I am going to do some more research and query my sales person.
I will get back to you on this topic.
This is a great start...

Thanks so much, Tom


-----Original Message-----
From: Jason Shearer [mailto:jshearer at amedisys.com] 
Sent: Tuesday, January 05, 2010 3:03 PM
To: tmdvoip; cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] PRI 's Roll

Ask these questions:

1) What order are they rolling in?
2) What distribution algorithm are they using?  (top down, circular, etc)

You can test each channel if you would like by shutting #2 & #3 down and
busying out all channels but one on #1.  Place test call.  Rinse and repeat
till you have tested all channels.

I typically request top down from the provider and do just the opposite
outbound.  If they are going top down 1,2,3 I will go outbound bottom up
3,2,1.

Jason

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of tmdvoip
Sent: Tuesday, January 05, 2010 1:56 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] PRI 's Roll

Guys:

This is my configuration
CUCM 4.2(3)sr4a (2) Cm in cluster
Cisco Unity 4.0(5.0)
Cisco 2851 Routers


Here is the situation: My client complains that external callers sometime
get an error message from our Telco Provider AT&T saying (all circuits are
busy).

I opened a ticket with the provider and they confirmed that there was a
power outage at one of their locations. Therefore, the Telco Provider AT&T
circuit has no power and our PRI goes down.

My client has 3 PRI's configured and they are supposed to roll from one PRI
to the next as call volume increases. The thing of it is my client has 3
PRI's with 23 channels each that are way-way under utilize. My question is
should the incoming calls just transition to the next PRI in the group? Am I
missing something? Is my Telco sales person says we are configured to roll
to the PRI. Why is it not rolling?

Sincerely,
Thomas Dooley
Cisco Telecommunications Administrator
Triad NC
Desk: 336-917-7125



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