[Asterisk-Users] T1-PRI deployment questions...

[Steven Critchfield]

On Thu, 2003-05-29 at 10:44, Charles E. Youse wrote:
> B8ZS is required for PRI.  It's a digital service and can not handle the
> loss of data required for AMI.

I wasn't aware that AMI lost data. AMI just inverts polarity on the line
for every other 1. B8ZS does the same thing but intentionally introduces
errors on the line to maintain 1's density. Neither one is lossy. 

> On Thu, 29 May 2003, Joe Antkowiak wrote:
> 
> > B8ZS/ESF I believe is the usual for a PRI
> >
> > DID calls in asterisk are routed just like dtmf dialed extensions, but there
> > are not DTMF tones passed.
> >
> > -----Original Message-----
> > From: asterisk-users-admin at lists.digium.com
> > [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of John Harragin
> > Sent: Thursday, May 29, 2003 11:05 AM
> > To: Asterisk
> > Subject: [Asterisk-Users] T1-PRI deployment questions...
> >
> > I am ordering T1-PRI service from local service provider and have a few
> > questions.
> >
> > Is there framing and coding considerations (or is it all one standard), if
> > so what is best?
> >
> > How are calls routed based on DIDs - are these just dtmf tones passed after
> > the call is picked up and treated as normal exten=> definitions?
> >
> > John
> >
> >
> > This e-mail was scanned and found clean by Monroe-Woodbury CSD Antivirus.
> >
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> 
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-- 
Steven Critchfield  <critch at basesys.com>