[cisco-voip] Fast-busy on 75% of phones in organization

[Joe Quigley]

I have had most of our phones suddenly get fast-busy tones on all calls.
This has occurred twice now in a period of 5 days. It is not specific to
phone model nor calling-search-space. No updates were applied recently
and both call managers in my cluster were rebooted.

 

All calls will get a reorder tone until they are reset. I spared a few
affected phones during the last incident so I could have TAC look at the
traces. The TAC engineer pored through the event logs and could
attribute nothing to the event except for saying I should look into the
large amount of "transient connection attempts" - which I thought were
just the nature of phones unregistering, i.e. my IPComm and 792x phones.
The TAC engineer wasn't able to find a cause.

 

While I had an affected phone available, I ran the dial plan analyzer to
see if anything had changed according to the database, but all things
routed normally. If I used bad phone to call good phone, bad phone would
get progress tone, good phone would ring. When good phone picked up,
both got reorder tone.

 

Now I have all the phones reset and back in operation, but am just
waiting for the next reorder wave to come! 

 

 

Joe Quigley

Telecomm Administrator

The Braun Corporation

Tel  574.946.4139 ext 3166

Fax 574.946.2301

 

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