[cisco-voip] Phone System Outages

[Todd Franklin]

Interesting thought.  The 2801 did have some sort of notice about a
duplicate DHCP entry or some such thing....unfortunately, everything was
happening so fast, and there is that need to JUST FIX IT,that there isn't a
lot of time to write stuff down or gather relevant stats.

Looks like I will be doing further research!!

Todd

I think it might be time to set up my cisco gear so it logs relevant
happenings to a syslogger on one of my linux/doze boxes.

On Sun, Jul 13, 2008 at 12:50 AM, Jonathan Charles <jonvoip at gmail.com>
wrote:

> One-way audio is almost always a routing issue, my guess is that you
> have a duplicate route to a subnet or a duplicate IP taking over a key
> layer-3 routed interface.
>
>
>
> Jonathan
>
> On Sat, Jul 12, 2008 at 7:42 AM, Todd Franklin <toddnh65 at gmail.com> wrote:
> > Environment:
> >
> > CCM 4.1, Unity version 4 also.
> > 3560s, 2801s.  6 buildings all linked by fiber.  Each building has a 2801
> > and 3560.
> > Total phone count: 60, mostly 7940s, some 7912s, a few 7960s.
> >
> > All fiber runs back to main location where it joins the network through
> > GBICs on 3560s.
> > At the main location we have a PRI that goes into a 2801.
> >
> > Problem:  3 times in the last year, we will get a situation that goes
> like
> > this:
> > Pressing 9 to dial out, and dialing your number:  Phone shows call is
> > completed, starts counting the seconds, but you hear nothing.
> > If we call another extension internally, they will hear us but we cannot
> > hear them.
> > If someone calls in from outside and gets the auto attendant, no input is
> > accepted, the attendant just keeps going.  (i.e. Press 2 for this, she
> just
> > keeps going, you can press as many buttons as you like, no change).
> >
> > The solution seems to be to reboot the main 2801 with the PRI.  I am not
> > sure why this would cure internal extension-to-extension calls, but it
> > does.  My facility runs 24 hours a day, so a reboot is never a good
> thing.
> >
> > Where should I start looking?  Broadcast storms?  Is this a sort of known
> > bug that Cisco might have fixed somewhere?  Anything in Unity or CCM I
> > should look at?  Counters on ports?
> >
> > Would appreciate any direction at all!
> >
> > Todd
> >
> > _______________________________________________
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> > cisco-voip at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-voip
> >
> >
>
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