[cisco-voip] Troubleshooting Help

Thu Jul 5 22:10:15 EDT 2007

TAC will tell you to upgrade your IOS.  You are running an old version that
I'm sure has bugs filed against it. You will get newer dspware by upgrading
to 12.4 mainline code.

Also, 4.2sr5a is a MCS OS version not a CCM version.  Login to your
http://ipaddress/ccmadmin page and click the details button.  What version
does it say you are running?

Since you are able to duplicate the calls during the failure situation you
really need to capture q931 debug to examine the cause for your issues.  I
would personally upgrade the IOS before I waited for another failure.

You could also be experiencing a hardware dsp failure.  Do you have anything
interesting in the router logs?

On 7/5/07, Todd Franklin <toddnh65 at gmail.com> wrote:
>
> Had the phone company in late today.  They are convinced it was not them.
> I guess they can see all the way to their CSU/DSU and all the way back to
> the CO, no errors at all all day long.  So they are pointing the finger at
> my internal network!  One thing I did see, is that the CPU utilization of
> the 2801 with the PRI hit as high as 80% early this morning.  I am thinking
> this could have done it.  (This 2801 is also the def gateway for the
> network, though the network is quite small, only about 60 total PCs and
> phones).
>
> So I guess time to open a case with TAC.
>
>
>
> On 7/5/07, kent <nws at fredf.org> wrote:
> >
> > I had a similar issue to the one your describing, The good news, well
> > maybe... I got to trouble shoot it while the 1000 user call center was
> > tring to answer the calls.  (Talk about fun!)  anyway the problem came
> > down to a bad media termination point.  After x number of calls hit,
> > then the weird ness started.  1 way audio etc.
> >
> > also, there are lots of known issues with the 12.3 train and weird audio
> > problems.  TAC suggests you get up to the 12.4 code to fix most of the
> > voice stuff.  You might just have a bad dsp module.   Also, if you have
> > MTP required for your gateway.  (not sure if thats an option for mgcp
> > like h323 at the moment)  you probably don't need to use them, but
> > depends on your environment.
> >
> > Also, I know theres a rush ususally to fix the issue, when it happens,
> > but alot of times if you can reproduce the problem with your phone and
> > run a sniffer, you might be able to see whats happening buy the ip
> > address of the streams.
> >
> > Also, TAC said on the 12.3 code, that putting the user on hold and then
> > taking them back off, might correct it to.    but I cheated, I removed
> > the MTP option and upgraded to 12.4 code.  :)
> >
> >
> >
> >
> >
> >
> > Paul Choi wrote:
> > > Is your 2801 receiving the digits from the LEC
> > > properly? Is the PRI cable damaged at all?
> > >
> > > --- Todd Franklin < toddnh65 at gmail.com> wrote:
> > >
> > >
> > >> Version 12.3(11)T9
> > >> MGCP
> > >>
> > >> On 7/5/07, Voll, Scott <Scott.Voll at wesd.org> wrote:
> > >>
> > >>>  VGW = Voice Gateway = 2801 with PRI
> > >>>
> > >>>
> > >>>
> > >>> What version on the 2801 with PRI?  Running H323
> > >>>
> > >> or MGCP
> > >>
> > >>>  ------------------------------
> > >>>
> > >>> *From:* Todd Franklin [mailto:toddnh65 at gmail.com]
> > >>> *Sent:* Thursday, July 05, 2007 10:19 AM
> > >>> *To:* Voll, Scott
> > >>> *Cc:* cisco-voip at puck.nether.net
> > >>> *Subject:* Re: [cisco-voip] Troubleshooting Help
> > >>>
> > >>>
> > >>>
> > >>> The PRI terminates on a separate 2801.  My CCM is
> > >>>
> > >> a 4.2sr5a (from what I
> > >>
> > >>> can gather!)  I don't know what VGW means, is the
> > >>>
> > >> VGW something to do with
> > >>
> > >>> the 2801?  I have no errors about a lack of DSPs,
> > >>>
> > >> when we did run low on
> > >>
> > >>> them, that usually got logged in CCM.  There is no
> > >>>
> > >> firewall between CCM and
> > >>
> > >>> the PRI.
> > >>>
> > >>> Thanks for the ideas!  I am now looking and
> > >>>
> > >> digging!!
> > >>
> > >>>  On 7/5/07, *Voll, Scott* < Scott.Voll at wesd.org >
> > >>>
> > >> wrote:
> > >>
> > >>> Where is the PRI terminating on?  the same 2801?
> > >>>
> > >>>
> > >>>
> > >>> What version of CM / VGW w/ PRI?
> > >>>
> > >>>
> > >>>
> > >>> Do you have enough DSP's?
> > >>>
> > >>>
> > >>>
> > >>> What codec is being ran in region and VGW?
> > >>>
> > >>>
> > >>>
> > >>> Any Firewalls between phone / CM / VGW?
> > >>>
> > >>>
> > >>>
> > >>> Scott
> > >>>
> > >>>
> > >>>  ------------------------------
> > >>>
> > >>> *From:* cisco-voip-bounces at puck.nether.net
> > >>>
> > >> [mailto:cisco-voip-bounces at puck.nether.net ]
> > >>
> > >>> *On Behalf Of *Todd Franklin
> > >>> *Sent:* Thursday, July 05, 2007 9:58 AM
> > >>> *To:* cisco-voip at puck.nether.net
> > >>> *Subject:* [cisco-voip] Troubleshooting Help
> > >>>
> > >>>
> > >>>
> > >>> Hey everyone.  I will try to keep this short, but
> > >>>
> > >> supply as much
> > >>
> > >>> information as possible.
> > >>>
> > >>> On june 28th, and again today on July 5, we have
> > >>>
> > >> had this issue:
> > >>
> > >>> If you are outside, and call in on a line that
> > >>>
> > >> comes in on our PRI, the
> > >>
> > >>> person receiving the call cannot hear you at all.
> > >>>
> > >> Yet you can hear them
> > >>
> > >>> perfectly.
> > >>> If you are outside, and call in on a line that
> > >>>
> > >> comes in our PRI with an
> > >>
> > >>> automated attendant, no input is accepted.  (i.e.
> > >>>
> > >> Press 1 for this, 2 for
> > >>
> > >>> that, if you press a key, the greeting just keeps
> > >>>
> > >> going.  If you dial an
> > >>
> > >>> extension, the greeting just keeps going).
> > >>> If you are inside, and dial out (we use a 9 to get
> > >>>
> > >> an outside line, this
> > >>
> > >>> puts you out on the PRI), the phone will show that
> > >>>
> > >> the call is connected,
> > >>
> > >>> yet you cannot hear anything at all.  No phone
> > >>>
> > >> ring, nothing.
> > >>
> > >>> Today, I pressed 9, and dialed the automated
> > >>>
> > >> weather phone in town, I got
> > >>
> > >>> connected to an Engineering firm 15 miles away.  I
> > >>>
> > >> hung up, dialed the same
> > >>
> > >>> weather phone, and got the very same Engineering
> > >>>
> > >> firm 15 miles away.
> > >>
> > >>> Also today, occasionally I would pick up my
> > >>>
> > >> handset, and be right in the
> > >>
> > >>> middle of someone's phone conversation.
> > >>> In both cases, if you call in to a line that is
> > >>>
> > >> POTS going into a 2801,
> > >>
> > >>> you are fine.  And if you call out using a POTS
> > >>>
> > >> line, you are fine (even
> > >>
> > >>> though the POTS outbound line is on a 2801).
> > >>>
> > >>> All this led me to believe it was a phone company
> > >>>
> > >> issue, yet the assure me
> > >>
> > >>> it was definitely not.  I had not rebooted my CCM
> > >>>
> > >> in over a year, so I
> > >>
> > >>> rebooted it.  Both instances, in less than an
> > >>>
> > >> hour, things go back to
> > >>
> > >>> normal, but needless to say, the issue is killing
> > >>>
> > >> me!  Where would I start
> > >>
> > >>> to look for ideas on what is happening??
> > >>>
> > >>> Would appreciate any help at all!
> > >>>
> > >>>
> > >>>
> > >>> _______________________________________________
> > >>>
> > >> cisco-voip mailing list
> > >> cisco-voip at puck.nether.net
> > >> https://puck.nether.net/mailman/listinfo/cisco-voip
> > >>
> > >>
> > >
> > >
> > >
> > >
> > >
> > ____________________________________________________________________________________
> > > Got a little couch potato?
> > > Check out fun summer activities for kids.
> > >
> > http://search.yahoo.com/search?fr=oni_on_mail&p=summer+activities+for+kids&cs=bz
> > > _______________________________________________
> > > cisco-voip mailing list
> > > cisco-voip at puck.nether.net
> > > https://puck.nether.net/mailman/listinfo/cisco-voip
> > >
> > >
> >
> >
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20070705/57fc38c1/attachment.html 