[cisco-voip] Phone System Outages

[Todd Franklin]

Yes, the 2801 at each location is for SRST and 911 issues.
All IP phones have the same default gateway.  It might be the 2801 or a
3560, I will have to confirm tomorrow when I am back at the office.  I think
the 2801 is doing DHCP server duties, something I need to get off of it.

On Sun, Jul 13, 2008 at 11:20 AM, Steve G <smgustafson at gmail.com> wrote:

> This may be an obvious question, but why is there a 2801 at each location?
> is it for SRST/911 purposes?  Do all IP Phones have the same default
> gateway, or do they look to their respective 2801s to provide routing for
> them?
>
> Steve
>
> On Sun, Jul 13, 2008 at 8:07 AM, Todd Franklin <toddnh65 at gmail.com> wrote:
>
>> 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
>>> >
>>> > _______________________________________________
>>> > cisco-voip mailing list
>>> > cisco-voip at puck.nether.net
>>> > https://puck.nether.net/mailman/listinfo/cisco-voip
>>> >
>>> >
>>>
>>
>>
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>>
>
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