[BC] long distance service for ISDN

[Mike McCarthy]

Well...we're doing it.  And all our FM sites have back-up ISDN on this 
account.  Sometimes the calls last for days...every once in a while when 
the T-1 craps out.  But not often enough to raise their eyebrows.  The AM's 
use a Tie-line POTS system.  What I find really amusing is the Tie-Line 
sounds AS good as the 8K program loop when it's one the air.  Even when 
listening to the wide-band RX.

MM

At 01:45 PM 5/18/2005 -0400, you wrote:
>On Wednesday 18 May 2005 14:25, Mike McCarthy wrote:
> > If you have MCI now, force them to add your ISDN BRI SPIDS to your standard
> > LD account.  They CAN DO IT.  You may simply want to give them the SPID#
> > and NOT tell them the numbers are ISDN BRI's.  To them, a DS0 is a DS0.
>
>Hmm, not quite.  The usage patterns tend to be radically different.
>Traditional 'voice' traffic calls last on the average about five minutes, and
>until the advent of widespread Internet access, the entire PSTN was
>engineered on that basis.  Data, OTOH, tends to have *much* longer call
>durations -- hours, sometimes days, sometimes 'forever'.  This blows the
>traditional 'five minute rule' used in traffic engineering out the window and
>means that the telcos end up having to provision significantly greater
>'inter-office' routes than a pure voice-traffic setup would require.  Hence,
>higher prices for data traffic.
>
>Cheers!
>
>
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