The type (brand) of switch used shouldn't really matter, but as mentioned
before, both of them have to support clear-channel 64K. It's possible that
the one at the remote side doesn't accept that. If you have someone handy at
the remote end to console into the router, you can use "debug isdn events"
(I believe that's the right command) to watch the call coming in. If you see
a bearer channel capacity error (again, I believe that's the right syntax;
it's been over a year since I worked heavily with ISDN), you know that
something on the remote end is expecting 56K. It could also be that the
router itself is set to respond to 56K only, rather than the fault lying
with the switch.
- Don
-----Original Message-----
From: John Neiberger [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 05, 2000 2:03 PM
To: [EMAIL PROTECTED]
Subject: RE: 56k ISDN??
Thanks, that info helps as well. The switch on our side is basic-ni, on the
remote side it is supposedly dms100. And, we are in different exchanges, so
that might be part of the problem. USWest ran traces on my calls to that
site and said the calls were making it there, but the other site was not
responding. The guy at the remote site can see the call arrive, but then
the line drops. Odd. Oh well, adventures in troubleshooting, as usual!
Thanks,
John
> In my experience with ISDN when I worked for Pacific Bell, the only times
we
> ever used 56K was when there were legacy switches involved that could
only
> handle 56K (in-band signaling, instead of clear-channel). My advice is to
> try 64K and only move to 56K if you find it's required.
>
> Your exchange is the first 3 digits of your phone number AFTER the area
code
> (e.g. in the number 123-456-7890, 123 is the area code and 456 is the
> exchange).
>
> Hope this helps. =)
>
> - Don
>
> -----Original Message-----
> From: John Neiberger [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, July 05, 2000 1:14 PM
> To: [EMAIL PROTECTED]
> Subject: 56k ISDN??
>
>
> I noticed on CCO that when configuring ISDN it suggests settings the
speed
> to 56k for calls outside of the local exchange. What types of situations
> are they actually referring to, and why would we use 56k instead of 64k?
>
> Another dumb question: how do we know if a called number is in our local
> exchange or not? Would this be something I'd have to verify with my
local
> provider?
>
> TIA for any help, I'm pretty new to the wonderful world of ISDN.
>
> John
>
>
>
>
>
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