Ascend Archive
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Re: (ASCEND) Disconnect-Cause 185
At 05:59 PM 8/25/97 +0700, Joseph Bridgewater wrote:
>At 03:14 PM 8/25/97 -0700, Kevin Smith wrote:
>>At 04:50 PM 8/23/97 +0700, Joseph Bridgewater wrote:
>>>We had a couple of strange experiences on our PRIs after upgrading to p20.
>>>One of them was that initially, only 8 channels would work although the
>>>line status window looked completely normal. After a while, they all
>>>started working.
>>
>>And now ??
>
>Now everything is back to normal and they all still work correctly.
>
>In fact, we've had absolutely NO (other) problems I would attribute to
>upgrading from p16 to p20 on 4000s and 1800. It seems like it might be a
>little faster, but I also made some other configuration changes just before
>upgrading.... just so I couldn't tell what did what ;)
No RADIUS accounting problems ?
>>>However, that particular PRI used to accept incoming
>>>channels starting at #23 and go down sequentially, now there's some other
>>>totally strange pattern to it.
>>
>>PRI calls into the MAX, the channel is chosen by the Telco. On a DMS switch,
>>it *usually* starts at 23 and works down to 1...AT&T 5ESS starts at 1....
>>
>>If they are being "hit" randomly, I would ask Telco if they changed anything
>>(of course they didn't, but it could lead to something...). Do all channels
>>eventually seem to be getting used ?
>
>Seems like in the past, the Telco people said our device chooses which
>channels to use. In any case, the funny thing is that immediately before
>the p20 upgrade, it did go from 23 -> 1, and immediately after, it's like
>23->19, 15->12, 9->7, 11, 5, 18, 4... I'm certain the PRI wasn't
>reconfigured co-incident with our sw upgrade. I did mention the behavior
>to the Telco people and asked if they knew of anything that could account
>for it, but so far I haven't heard back from them. Since I was under the
>impression the channel to use was chosen by the Maxen, I haven't pursued it
>with them.
The MAX chooses for outgoing calls, but Telco chooses for incoming calls.
We could do a PRI trace if this appears to be causing problems (it may just
be that the hunt mechanism was changed coincidentally) - or don't mess with
it if it "aint broke"...
Kevin
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