[Asterisk-Users] any ISDN/PRI signaling experts out there?

[Damon Estep]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Matt Fredrickson
> Sent: Friday, August 19, 2005 10:56 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] any ISDN/PRI signaling experts out
there?
> 
> On Fri, Aug 19, 2005 at 07:01:00AM -0600, Damon Estep wrote:
> > On the same setup, if I connect another PRI device to it that
emulates
> > switch side signaling and includes the CNAM as a Display IE in the
> > setup, the SIP invite is properly formatted and * receives the
calling
> > party name.
> >
> > Does anyone here have enough experience with ISDN PRI signaling to
> > comment with some level of authority on this?
> 
> Asteris/libpri can process and handle either style of caller name
delivery
> (GR-1367 and Display IE).  If they do now send the name information in
the
> SETUP message you may have to do a delay in your dialplan before you
> access
> that information.  You'd have to hook your Asterisk machine directly
up
> to the 5E for that to work though.
> 
> --
> Matthew Fredrickson

Matthew,

Have you seen cases where the Telco requires a response to setup before
they release the Facility IE with the CNAM in it? Does zaptel/libpri
handle this and put the CNAM in the SIP invite?

My telco delivers the Facility IE only after a response to setup, and
then some times up to 1 second after the setup message is sent. Their
explanation is that the end office (serving CO) does the LIDB dip.

Seems that the invite would have to be-resent with the CNAM to get it to
work, is this what Asterisk does?

Damon