[cisco-voip] Call Routing Problems

[Huffman, Tim]

So I've checked QOS and all other settings. I enabled more bandwidth in the Locations settings in CM (which fixed my not enough bandwidth problem, THANKS!).  After about 65 calls went through I started getting busy signals.  We have 4 T1s at the remote site, that should give us 92 lines.  I've checked all route groups/route lists in CM and everything looks to be setup correctly (All LD T1's enabled and ordered correctly).  I believe this could be a T1 issue, as we've never saturated the lines like that in our remote office.  Is there a way to test all 23 ports per T1 to confirm everything's working the way it should?  Any other ideas why I'm getting fast busies after approx 65 calls?

Thanks,

Tim Huffman

From: Madziarczyk, Jonathan [mailto:JMad at cityofevanston.org]
Sent: Monday, January 04, 2010 2:43 PM
To: Huffman, Tim; cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Call Routing Problems

Hey Tim,

Like Nate was saying, be sure to check your network link between the sites to make sure if there is QOS on the routers it will match whatever you're upping your location bandwidth to in CUCM.  Otherwise call quality will be fine up to 432 kbps, but on a fully saturated link that 26th call will hurt everyone's call quality.  Also if you have redundant wan links, you'll want to check both links and not just the one.

Jon

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From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Huffman, Tim
Sent: Monday, January 04, 2010 1:23 PM
To: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Call Routing Problems

Thanks for all of your responses.  Location was set to 432 kbps.  This was most likely the issue as we had 25+ calls going over to the remote site.

Thanks,

Tim Huffman

From: Matt Slaga (US) [mailto:Matt.Slaga at us.didata.com]
Sent: Monday, January 04, 2010 1:57 PM
To: Huffman, Tim; cisco-voip at puck.nether.net
Subject: RE: Call Routing Problems

'Not enough bandwidth' only is sent to a device when the 'location' bandwidth is overrun.  Check your location bandwidth settings (System -> Locations).



From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Huffman, Tim
Sent: Monday, January 04, 2010 1:47 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Call Routing Problems

All,

We have a Subscriber and Publisher at our main location.  We have another subscriber at one of our remote office that is associated with the publisher at the main location.

I made a route pattern on our Publisher that would allow for some of the calls that are incoming at our main site's T1s, to go outbound our remote sites' T1s so we can free up some channels on our T1s at the main site.  Once I made this change, it worked with no issues until we hit a certain call volume (not sure how many).  Once it went haywire phones at our remote location started saying "not enough bandwidth."  It also caused issues trying to call inter-office from our main location to our remote location.  How would I tell what the limitation is of simultaneous calls from our main location to our remote location?

I did already confirm that we did not saturate our WAN connection between the two sites.

Thanks,

Tim Huffman

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